AD 2005-17-16

[Federal Register Volume 70, Number 165 (Friday, August 26, 2005)]
[Rules and Regulations]
[Pages 50170-50180]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 05-16903]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-19929; Directorate Identifier 2004-NE-15-AD; 
Amendment 39-14237; AD 2005-17-16]
RIN 2120-AA64


Airworthiness Directives; Pratt & Whitney JT8D-1, -1A, -1B, -7, -
7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, -17AR, -209, -217, -
217A, -217C, and -219 Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
Pratt & Whitney (PW) JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -15, 
-15A, -17, -17A, -17R, -17AR, -209, -217, -217A, -217C, and -219 
turbofan engines. This AD requires removing affected rotating parts 
overhauled by a certain repair vendor, and inspecting the parts as 
applicable. This AD results from reports that certain JT8D critical 
life-limited rotating parts have been returned to service with cracks, 
corrosion pitting, or dimensions outside of manual limits. We are 
issuing this AD to prevent failure of critical life-limited rotating 
engine parts which could result in an uncontained engine failure and 
damage to the airplane.

DATES: This AD becomes effective September 30, 2005. The Director of 
the Federal Register approved the incorporation by reference of certain 
publications listed in the regulations as of September 30, 2005.

ADDRESSES: You can get the service information identified in this AD 
from Pratt & Whitney, 400 Main St., East Hartford, CT 06108; telephone 
(860) 565-7700; fax (860) 565-1605.
    You may examine the AD docket on the Internet at <a href="http://dms.dot.gov">http://dms.dot.gov</a> 
or in Room PL-401 on the plaza level of the Nassif Building, 400 
Seventh Street, SW., Washington, DC.

FOR FURTHER INFORMATION CONTACT: Keith Lardie, Aerospace Engineer, 
Engine Certification Office, FAA, Engine and Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803-5299; telephone (781) 
238-7189; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 
with a proposed airworthiness directive (AD). The proposed AD applies 
to Pratt & Whitney (PW) JT8D-1, -1A, -1B, -7, -7A, -7B, -9, -9A, -11, -
15, -15A, -17, -17A, -17R, -17AR, -209, -217, -217A, -217C, and -219 
turbofan engines. We published the proposed AD in the Federal Register 
on December 30, 2004 (69 FR 78359). That action proposed to require 
removing affected rotating parts overhauled by a certain repair vendor, 
and inspecting or replacing the parts as applicable.

Examining the AD Docket

    You may examine the docket that contains the AD, any comments 
received, and any final disposition in person at the DMS Docket Offices 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Office (telephone (800) 647-5227) is located on 
the plaza level of the Department of Transportation Nassif Building at 
the street address stated in ADDRESSES. Comments will be available in 
the AD docket shortly after the DMS receives them.

Comments

    We provided the public the opportunity to participate in the 
development of this AD. We have considered the comments received.

Request To Remove Rear Compressor Rear Hub From List of Affected Parts

    One commenter requests that we remove the rear compressor rear hub 
from the list of affected parts. The commenter states that the part is 
a nickel alloy similar to the 13th stage disk and there is no cracking 
or corrosion associated with it. In addition, the rear compressor rear 
hub is not a life-limited part, and the serial numbers are not readily 
available. As a result, the commenter feels the proposed AD would force 
operators to inspect all parts, not just the listed serial number 
parts.
    We agree. We have removed it from this AD.

Include All Parts Improperly Processed by the Repair Vendor

    One commenter asks that this AD include all parts improperly 
processed by a certain repair vendor, not just the high-pressure 
compressor.
    We do not agree. The proposed AD addresses those parts that pose a 
safety threat. All other parts either present no known safety threat, 
or are already addressed through other applicable ADs and field 
notifications. If we decide that further AD action is necessary to 
address other parts, we may issue a separate AD at that time.

Request To Clarify ``Shop Visit''

    One commenter asks that we clarify the definition of ``shop visit'' 
contained in the AD. The commenter feels that an operator could 
interpret a shop visit as when an airplane upon which an affected 
engine is installed, goes into a hangar.
    We agree. We included the following definition in the AD: ``A shop 
visit is defined as an engine removal where engine maintenance entails 
separation of pairs of major engine flanges or the removal of a disk, 
hub or spool at a maintenance facility, regardless of the scheduled 
maintenance action or the reason for engine removal.''

Request To Inspect Rear Compressor Front and Rear Compressor Rear Hubs 
When They Are Accessible

    One commenter asks that we not place time restrictions on operators 
to inspect rear compressor front and rear compressor rear hubs and 
instead inspect them when they are accessible. Because they aren't 
life-limited parts, the hubs are not tracked by serial

[[Page 50171]]

numbers. The commenter believes the proposed AD would require operators 
to inspect every JT8D before March 31, 2008. Those inspections would 
force early removal of many engines. We partially agree. Table 1 of 
this AD lists all life-limited rear compressor front hubs, and 
operators must inspect them by the March 31, 2008, deadline. Table 2 of 
this AD lists all rear compressor front hubs that are non-life limited. 
Operators must inspect them at the next accessibility. We removed the 
rear compressor rear hubs from this AD, based on a previous comment.

Compliance Date

    One commenter asks us to explain how we determined the March 31, 
2008 compliance date. The commenter states that it is unclear how we 
selected that compliance date since corrosion inspection ADs 2003-16-05 
and 2003-12-07, as well as PW ASBs A6431 and A6435, designate July 18, 
2011, as a compliance date.
    We evaluated the results of a risk analysis based on inspection 
data obtained from a sample of parts repaired by the repair vendor. 
That analysis demonstrated a greater risk of failure if the parts were 
only inspected for corrosion and not for cracking as mandated in ADs 
2003-16-05 and 2003-12-07. Based on that risk analysis, we set March 
31, 2008, as the date by which operators must complete the inspections.

Use of Certain Parts as Serviceable Parts

    One commenter recommends inspecting all parts listed in Tables 1 
and 2 that have zero cycles-in-service since May 14, 2001, using PW ASB 
A6442 and made available for use as spare parts.
    We do not agree. Parts listed in Table 1 were subjected to shot 
peening that could mask surface cracks. Parts listed in Table 2 were 
not. If the parts in Table 1 were cracked and, thereafter, shot peened, 
the cracks will reopen once operated in an engine, a significant factor 
in our risk analysis and the resulting compliance schedule in the 
proposed AD. Since there is no effective inspection to detect these 
cracks, operators may use only parts that have been in service. This is 
consistent with the manufacturer's disposition instructions in ASB 
A6442 that state, ``All compressor disks and hubs listed in Table 1 
that are not installed in an engine MUST be scrapped.''

Definition of Installed Part

    One commenter requests that the definition of installed part be 
included in this AD to prevent ``operation of a part physically 
installed in a module.''
    We do not agree. A definition of ``installed part'' is unnecessary 
because this proposed AD prohibits all parts with zero cycles-in-
service that are listed in Table 1 from entering service, regardless of 
whether they are installed or not. However, we added a new paragraph 
(h) to prevent installing any engine that has an affected disk or hub 
that has zero cycles-in-service after May 14, 2001, and recodified the 
subsequent paragraphs.

Operators' Cost

    One commenter asks that we explain the cost to operators, 
suggesting that we evaluate the cost as if every part fails inspection. 
The commenter states that the current market value for all affected 
parts is $14,413,020, and the cost to disassemble, inspect and 
reassemble engines outside of regularly scheduled maintenance is 
$1,766,440.
    We disagree. We still consider our evaluation of cost as noted in 
the NPRM valid. We do not expect that every part will fail the 
inspection, although we estimate that the number will be substantial. 
In addition, we did not include the full cost of every disk in the 
economic analysis if the disks must be replaced before they reach their 
certified life, a normal operating expense. Accordingly, we didn't 
change the Costs to Comply.

Add Spare Parts to Paragraph (g)

    One commenter asks that we add a sentence to Paragraph (g) that 
reads ``This includes all parts on the shelf that have not been used.''
    We do not agree. This AD is clear as written. We have not added the 
sentence.

Conclusion

    We have carefully reviewed the available data, including the 
comments received, and determined that air safety and the public 
interest require adopting the AD with the changes described previously. 
We have determined that these changes will neither increase the 
economic burden on any operator nor increase the scope of the AD.

Interim Action

    These actions are interim actions and we might take further 
rulemaking action in the future.

Costs of Compliance

    We estimate that this AD will affect about 632 JT8D engines 
installed on airplanes of U.S. registry. We estimate that 158 engines 
will require access to the high-pressure compressor outside of 
regularly scheduled maintenance, and will require 66 work hours per 
engine. The high pressure compressor section of the remaining 474 
engines will be inspected during regularly scheduled maintenance, and 
will not require additional labor costs to inspect. The average labor 
rate is $65 per work hour. We estimate that half of the parts presently 
installed will require replacement, at a cost of approximately 
$6,730,800. Based on this information, we estimate the total cost of 
the AD to U.S. operators to be $7,398,620.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this AD will not have federalism 
implications under Executive Order 13132. This AD will not have a 
substantial direct effect on the States, on the relationship between 
the national government and the States, or on the distribution of power 
and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866;
    (2) Is not a ``significant rule'' under DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979); and
    (3) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a summary of the costs to comply with this AD and 
placed it in the AD Docket. You may get a copy of this summary at the 
address listed under ADDRESSES.

[[Page 50172]]

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the Federal Aviation Administration amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive:

2005-17-16 Pratt & Whitney: Amendment 39-14237. Docket No. FAA-2004-
19929; Directorate Identifier 2004-NE-15-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective 
September 30, 2005.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Pratt & Whitney (PW) JT8D-1, -1A, -1B, -
7, -7A, -7B, -9, -9A, -11, -15, -15A, -17, -17A, -17R, -17AR, -209, 
-217, -217A, -217C, and -219 turbofan engines. These engines are 
installed on, but not limited to, Boeing 727 and 737 series, and 
McDonnell Douglas DC-9 series and MD-80 series airplanes.

Unsafe Condition

    (d) This AD results from reports that certain JT8D critical 
life-limited rotating parts have been returned to service with 
cracks, corrosion pitting, or dimensions outside of manual limits. 
We are issuing this AD to prevent failure of critical life-limited 
rotating engine parts, which could result in an uncontained engine 
failure and damage to the airplane.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Inspect Parts

    (f) Remove all coating from the disks and hubs identified in 
Tables 1 and 2 of this AD and visually, dimensionally, and 
nondestructively inspect the parts using the inspection criteria 
listed in the Accomplishment Instructions portion of PW Alert 
Service Bulletin (ASB) No. JT8D A6442, dated April 4, 2003:
    (1) At the next shop visit after the effective date of this AD, 
but no later than March 31, 2008, for all parts listed in Table 1, 
and,
    (2) At next part accessibility for all parts listed in Table 2.

                                  Table 1.--Affected Compressor Disks and Hubs
----------------------------------------------------------------------------------------------------------------
             SN                     P/N                                   Description
----------------------------------------------------------------------------------------------------------------
B207AA0072..................          774407  DISK--COMPRESSOR, 7TH STAGE.
B207AA0185..................          774407  DISK--COMPRESSOR, 7TH STAGE.
B207AA0265..................          774407  DISK--COMPRESSOR, 7TH STAGE.
B207AA0307..................          774407  DISK--COMPRESSOR, 7TH STAGE
B207AA0390..................          774407  DISK--COMPRESSOR, 7TH STAGE.
B207AA0602..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAH2848..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAJ5251..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAJ8447..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAJ8508..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAK1906..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAK5073..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAK6015..................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAK6588..................          774407  DISK--COMPRESSOR, 7TH STAGE.
G83339......................          774407  DISK--COMPRESSOR, 7TH STAGE.
H29725......................          774407  DISK--COMPRESSOR, 7TH STAGE.
J39323......................          774407  DISK--COMPRESSOR, 7TH STAGE.
J66757......................          774407  DISK--COMPRESSOR, 7TH STAGE.
J93566......................          774407  DISK--COMPRESSOR, 7TH STAGE.
K72131......................          774407  DISK--COMPRESSOR, 7TH STAGE.
L24089......................          774407  DISK--COMPRESSOR, 7TH STAGE.
M15351......................          774407  DISK--COMPRESSOR, 7TH STAGE.
M78744......................          774407  DISK--COMPRESSOR, 7TH STAGE.
M88080......................          774407  DISK--COMPRESSOR, 7TH STAGE.
N04693......................          774407  DISK--COMPRESSOR, 7TH STAGE.
N24126......................          774407  DISK--COMPRESSOR, 7TH STAGE.
N37768......................          774407  DISK--COMPRESSOR, 7TH STAGE.
N70373......................          774407  DISK--COMPRESSOR, 7TH STAGE.
N88332......................          774407  DISK--COMPRESSOR, 7TH STAGE.
P14777......................          774407  DISK--COMPRESSOR, 7TH STAGE.
P14853......................          774407  DISK--COMPRESSOR, 7TH STAGE.
P54407......................          774407  DISK--COMPRESSOR, 7TH STAGE.
P60411......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R02963......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R02983......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R03090......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R12397......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R12398......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R12414......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R12506......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R12527......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R19285......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R19423......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R19466......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R31288......................          774407  DISK--COMPRESSOR, 7TH STAGE.

[[Page 50173]]

 
R31356......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R37429......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R57637......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R57707......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R72163......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R81448......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R81455......................          774407  DISK--COMPRESSOR, 7TH STAGE.
R90915......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S05602......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S13909......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S13945......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S14021......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S14057......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S14083......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S14112......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S36685......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S36696......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S36760......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S36882......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S37210......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S37330......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S37334......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S37351......................          774407  DISK--COMPRESSOR, 7TH STAGE.
S37384......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04464......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04520......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04635......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04674......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04725......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04770......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04778......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04841......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T04965......................          774407  DISK--COMPRESSOR, 7TH STAGE.
T05018......................          774407  DISK--COMPRESSOR, 7TH STAGE.
BENCAP1838..................          815607  DISK--COMPRESSOR, 7TH STAGE.
BENCAP5647..................          815607  DISK--COMPRESSOR, 7TH STAGE.
B207AA0127..................      5006007-01  DISK--COMPRESSOR, 7TH STAGE.
BENCAK9663..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAL3896..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAL5171..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAM1583..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAM3953..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAM8359..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAM8385..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAN5764..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
BENCAN5857..................      5006007-02  DISK--COMPRESSOR, 7TH STAGE.
2B7763......................          738308  DISK--COMPRESSOR, 8TH STAGE.
B208AA0063..................          748608  DISK--COMPRESSOR, 8TH STAGE.
B208AA0075..................          748608  DISK--COMPRESSOR, 8TH STAGE.
BENCAM3705..................          748608  DISK--COMPRESSOR, 8TH STAGE.
BENCAP0649..................          748608  DISK--COMPRESSOR, 8TH STAGE.
BENCAP1082..................          748608  DISK--COMPRESSOR, 8TH STAGE.
G62633......................          748608  DISK--COMPRESSOR, 8TH STAGE.
H64242......................          748608  DISK--COMPRESSOR, 8TH STAGE.
H64541......................          748608  DISK--COMPRESSOR, 8TH STAGE.
J27080......................          748608  DISK--COMPRESSOR, 8TH STAGE.
M54597......................          748608  DISK--COMPRESSOR, 8TH STAGE.
N84400......................          748608  DISK--COMPRESSOR, 8TH STAGE.
P26132......................          748608  DISK--COMPRESSOR, 8TH STAGE.
P28454......................          748608  DISK--COMPRESSOR, 8TH STAGE.
P28525......................          748608  DISK--COMPRESSOR, 8TH STAGE.
P28529......................          748608  DISK--COMPRESSOR, 8TH STAGE.
P28610......................          748608  DISK--COMPRESSOR, 8TH STAGE.
R18442......................          748608  DISK--COMPRESSOR, 8TH STAGE.
R44993......................          748608  DISK--COMPRESSOR, 8TH STAGE.
R45505......................          748608  DISK--COMPRESSOR, 8TH STAGE.
R74513......................          748608  DISK--COMPRESSOR, 8TH STAGE.
S01111......................          748608  DISK--COMPRESSOR, 8TH STAGE.
S19131......................          748608  DISK--COMPRESSOR, 8TH STAGE.
S50698......................          748608  DISK--COMPRESSOR, 8TH STAGE.
S50793......................          748608  DISK--COMPRESSOR, 8TH STAGE.
S78019......................          748608  DISK--COMPRESSOR, 8TH STAGE.

[[Page 50174]]

 
BENCAP4498..................          815608  DISK--COMPRESSOR, 8TH STAGE.
BENCAP4505..................          815608  DISK--COMPRESSOR, 8TH STAGE.
BENCAR1361..................          815608  DISK--COMPRESSOR, 8TH STAGE.
BENCAR1363..................          815608  DISK--COMPRESSOR, 8TH STAGE.
BENCAR1367..................          815608  DISK--COMPRESSOR, 8TH STAGE.
R91483......................      5005808-01  DISK--COMPRESSOR, 8TH STAGE.
T03355......................      5005808-01  DISK--COMPRESSOR, 8TH STAGE.
M33420......................          787008  HUB--REAR COMPRESSOR, FRONT.
N06209......................          787008  HUB--REAR COMPRESSOR, FRONT.
N33004......................          787008  HUB--REAR COMPRESSOR, FRONT.
N33349......................          787008  HUB--REAR COMPRESSOR, FRONT.
N33420......................          787008  HUB--REAR COMPRESSOR, FRONT.
N34154......................          787008  HUB--REAR COMPRESSOR, FRONT.
N90416......................          787008  HUB--REAR COMPRESSOR, FRONT.
N90658......................          787008  HUB--REAR COMPRESSOR, FRONT.
B228AA0190..................          787208  HUB--REAR COMPRESSOR, FRONT.
B228AA0194..................          787208  HUB--REAR COMPRESSOR, FRONT.
B228AA1021..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAH0967..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAH0969..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAK0069..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAK8767..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAL2504..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAM2701..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAN0012..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAN1226..................          787208  HUB--REAR COMPRESSOR, FRONT.
BENCAN3008..................          787208  HUB--REAR COMPRESSOR, FRONT.
P43696......................          787208  HUB--REAR COMPRESSOR, FRONT.
P43934......................          787208  HUB--REAR COMPRESSOR, FRONT.
P43948......................          787208  HUB--REAR COMPRESSOR, FRONT.
P44411......................          787208  HUB--REAR COMPRESSOR, FRONT.
P45017......................          787208  HUB--REAR COMPRESSOR, FRONT.
P45277......................          787208  HUB--REAR COMPRESSOR, FRONT.
P45459......................          787208  HUB--REAR COMPRESSOR, FRONT.
P45544......................          787208  HUB--REAR COMPRESSOR, FRONT.
R23166......................          787208  HUB--REAR COMPRESSOR, FRONT.
R23187......................          787208  HUB--REAR COMPRESSOR, FRONT.
R23277......................          787208  HUB--REAR COMPRESSOR, FRONT.
R23628......................          787208  HUB--REAR COMPRESSOR, FRONT.
R23806......................          787208  HUB--REAR COMPRESSOR, FRONT.
R24209......................          787208  HUB--REAR COMPRESSOR, FRONT.
R24598......................          787208  HUB--REAR COMPRESSOR, FRONT.
R24900......................          787208  HUB--REAR COMPRESSOR, FRONT.
R91415......................          787208  HUB--REAR COMPRESSOR, FRONT.
R91746......................          787208  HUB--REAR COMPRESSOR, FRONT.
R92224......................          787208  HUB--REAR COMPRESSOR, FRONT.
S07564......................          787208  HUB--REAR COMPRESSOR, FRONT.
S07655......................          787208  HUB--REAR COMPRESSOR, FRONT.
S07706......................          787208  HUB--REAR COMPRESSOR, FRONT.
S39160......................          787208  HUB--REAR COMPRESSOR, FRONT.
S39199......................          787208  HUB--REAR COMPRESSOR, FRONT.
S39338......................          787208  HUB--REAR COMPRESSOR, FRONT.
S39741......................          787208  HUB--REAR COMPRESSOR, FRONT.
S39839......................          787208  HUB--REAR COMPRESSOR, FRONT.
S40023......................          787208  HUB--REAR COMPRESSOR, FRONT.
S40043......................          787208  HUB--REAR COMPRESSOR, FRONT.
B228AA0261..................          792038  HUB--REAR COMPRESSOR, 8TH STAGE.
B228AA0566..................          792038  HUB--REAR COMPRESSOR, 8TH STAGE.
BENCAK8279..................          792038  HUB--REAR COMPRESSOR, 8TH STAGE.
M41870......................          792038  HUB--REAR COMPRESSOR, 8TH STAGE.
N89470......................          797938  HUB--REAR COMPRESSOR, 8TH STAGE.
BENCAP5753..................          815708  HUB--REAR COMPRESSOR, 8TH STAGE.
BENCAR5454..................          815708  HUB--REAR COMPRESSOR, 8TH STAGE.
BENCAR5458..................          815708  HUB--REAR COMPRESSOR, 8TH STAGE.
BENCAR5500..................          815708  HUB--REAR COMPRESSOR, 8TH STAGE.
BENCAR0387..................          815808  HUB--REAR COMPRESSOR, 8TH STAGE.
G79931......................          701509  DISK--COMPRESSOR, 9TH STAGE.
H12008......................          701509  DISK--COMPRESSOR, 9TH STAGE.
H85014......................          701509  DISK--COMPRESSOR, 9TH STAGE.
J24173......................          701509  DISK--COMPRESSOR, 9TH STAGE.
J89012......................          701509  DISK--COMPRESSOR, 9TH STAGE.
L31210......................          701509  DISK--COMPRESSOR, 9TH STAGE.

[[Page 50175]]

 
M84244......................          701509  DISK--COMPRESSOR, 9TH STAGE.
M84648......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N03018......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0003..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0021..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0108..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0110..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0120..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0251..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0254..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0339..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0465..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N209AA0613..................          701509  DISK--COMPRESSOR, 9TH STAGE.
N41318......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N97641......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N97777......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N98300......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N98342......................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0026..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0145..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0196..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0311..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0558..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0686..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH0808..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH1372..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH1462..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH1787..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH2157..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH2310..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH2618..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH2744..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH2754..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH2812..................          701509  DISK--COMPRESSOR, 9TH STAGE.
NENCAH3172..................          701509  DISK--COMPRESSOR, 9TH STAGE.
P11727......................          701509  DISK--COMPRESSOR, 9TH STAGE.
P51543......................          701509  DISK--COMPRESSOR, 9TH STAGE.
P51573......................          701509  DISK--COMPRESSOR, 9TH STAGE.
P51959......................          701509  DISK--COMPRESSOR, 9TH STAGE.
P52941......................          701509  DISK--COMPRESSOR, 9TH STAGE.
P98658......................          701509  DISK--COMPRESSOR, 9TH STAGE.
P98768......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R17612......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R17753......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R17770......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R18740......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R19009......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R19013......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R45437......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R45449......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R45875......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R46726......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R72945......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R72960......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R73803......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R73835......................          701509  DISK--COMPRESSOR, 9TH STAGE.
R73941......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S00757......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S00963......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S18823......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S18838......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S18955......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S50282......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S50317......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S50434......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S70079......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S77569......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S77744......................          701509  DISK--COMPRESSOR, 9TH STAGE.
S77764......................          701509  DISK--COMPRESSOR, 9TH STAGE.
T18831......................          701509  DISK--COMPRESSOR, 9TH STAGE.
T27504......................          701509  DISK--COMPRESSOR, 9TH STAGE.
T27506......................          701509  DISK--COMPRESSOR, 9TH STAGE.

[[Page 50176]]

 
T27542......................          701509  DISK--COMPRESSOR, 9TH STAGE.
N41854......................          772509  DISK--COMPRESSOR, 9TH STAGE.
B209AA0643..................          798509  DISK--COMPRESSOR, 9TH STAGE.
BENCAK4407..................          798509  DISK--COMPRESSOR, 9TH STAGE.
BENCAK5293..................          798509  DISK--COMPRESSOR, 9TH STAGE.
BENCAK9176..................          798509  DISK--COMPRESSOR, 9TH STAGE.
S79381......................          798509  DISK--COMPRESSOR, 9TH STAGE.
BENCAP5919..................          815609  DISK--COMPRESSOR, 9TH STAGE.
BENCAP8126..................          815609  DISK--COMPRESSOR, 9TH STAGE.
BENCAP7181..................          815709  DISK--COMPRESSOR, 9TH STAGE.
1A9814......................          701410  DISK--COMPRESSOR, 10TH STAGE.
H18187......................          701410  DISK--COMPRESSOR, 10TH STAGE.
B210AA0149..................          772510  DISK--COMPRESSOR, 10TH STAGE.
B210AA0640..................          772510  DISK--COMPRESSOR, 10TH STAGE.
B210AA0909..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAH0262..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAH2166..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAH2273..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAH3784..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAH4152..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAH7481..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAJ9921..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAK0265..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAK0436..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAK6513..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAL1628..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAL1639..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAL3371..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAL6369..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAM1250..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAM3804..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAM3921..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAM4098..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAM9868..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAM9908..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAN1150..................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAN7151..................          772510  DISK--COMPRESSOR, 10TH STAGE.
H77954......................          772510  DISK--COMPRESSOR, 10TH STAGE.
J70438......................          772510  DISK--COMPRESSOR, 10TH STAGE.
K35562......................          772510  DISK--COMPRESSOR, 10TH STAGE.
K67440......................          772510  DISK--COMPRESSOR, 10TH STAGE.
M61663......................          772510  DISK--COMPRESSOR, 10TH STAGE.
M73696......................          772510  DISK--COMPRESSOR, 10TH STAGE.
M73717......................          772510  DISK--COMPRESSOR, 10TH STAGE.
M73921......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N02011......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N22418......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N80149......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N80717......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N97525......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N98121......................          772510  DISK--COMPRESSOR, 10TH STAGE.
N98502......................          772510  DISK--COMPRESSOR, 10TH STAGE.
P51840......................          772510  DISK--COMPRESSOR, 10TH STAGE.
P51884......................          772510  DISK--COMPRESSOR, 10TH STAGE.
P52230......................          772510  DISK--COMPRESSOR, 10TH STAGE.
P52692......................          772510  DISK--COMPRESSOR, 10TH STAGE.
P53030......................          772510  DISK--COMPRESSOR, 10TH STAGE.
P98173......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R18125......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R18126......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R18219......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R45551......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R45884......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R46585......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R72889......................          772510  DISK--COMPRESSOR, 10TH STAGE.
R74037......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S01333......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S01381......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S19348......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S19418......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S19446......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S19563......................          772510  DISK--COMPRESSOR, 10TH STAGE.

[[Page 50177]]

 
S50885......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S51060......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S51077......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S70198......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S70221......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S78390......................          772510  DISK--COMPRESSOR, 10TH STAGE.
S78774......................          772510  DISK--COMPRESSOR, 10TH STAGE.
T19111......................          772510  DISK--COMPRESSOR, 10TH STAGE.
T19185......................          772510  DISK--COMPRESSOR, 10TH STAGE.
T28090......................          772510  DISK--COMPRESSOR, 10TH STAGE.
T28130......................          772510  DISK--COMPRESSOR, 10TH STAGE.
T28230......................          772510  DISK--COMPRESSOR, 10TH STAGE.
BENCAP3554..................          815610  DISK--COMPRESSOR, 10TH STAGE.
BENCAP8866..................          815610  DISK--COMPRESSOR, 10TH STAGE.
BENCAP9500..................          815610  DISK--COMPRESSOR, 10TH STAGE.
BENCAR3177..................          815610  DISK--COMPRESSOR, 10TH STAGE.
2A0326......................          701411  DISK--COMPRESSOR, 11TH STAGE.
8Y2537......................          701411  DISK--COMPRESSOR, 11TH STAGE.
B211AA0141..................          772511  DISK--COMPRESSOR, 11TH STAGE.
B211AA0611..................          772511  DISK--COMPRESSOR, 11TH STAGE.
B211AA0838..................          772511  DISK--COMPRESSOR, 11TH STAGE.
B211AA0934..................          772511  DISK--COMPRESSOR, 11TH STAGE.
B211AA1235..................          772511  DISK--COMPRESSOR, 11TH STAGE.
B211AA1315..................          772511  DISK--COMPRESSOR, 11TH STAGE.
B211AA1357..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAH0266..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAH8830..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAK0480..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAK7394..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAL2738..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAM2075..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAM7493..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAM7745..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAM7814..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAN3212..................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAN7762..................          772511  DISK--COMPRESSOR, 11TH STAGE.
H58198......................          772511  DISK--COMPRESSOR, 11TH STAGE.
J24723......................          772511  DISK--COMPRESSOR, 11TH STAGE.
L55201......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M10783......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M40303......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M61351......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M61382......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M62071......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M73309......................          772511  DISK--COMPRESSOR, 11TH STAGE.
M87068......................          772511  DISK--COMPRESSOR, 11TH STAGE.
N03523......................          772511  DISK--COMPRESSOR, 11TH STAGE.
N41429......................          772511  DISK--COMPRESSOR, 11TH STAGE.
N97351......................          772511  DISK--COMPRESSOR, 11TH STAGE.
N97355......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P03557......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P11649......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P51901......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P52302......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P52553......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P53051......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P66344......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P66429......................          772511  DISK--COMPRESSOR, 11TH STAGE.
P76611......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R05611......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R18714......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R29877......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R29944......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R29960......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R30004......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R30196......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R30400......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R30622......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R30734......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R30906......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R44093......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R44808......................          772511  DISK--COMPRESSOR, 11TH STAGE.

[[Page 50178]]

 
R45420......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R45926......................          772511  DISK--COMPRESSOR, 11TH STAGE.
R46487......................          772511  DISK--COMPRESSOR, 11TH STAGE.
S04447......................          772511  DISK--COMPRESSOR, 11TH STAGE.
S04609......................          772511  DISK--COMPRESSOR, 11TH STAGE.
S80579......................          772511  DISK--COMPRESSOR, 11TH STAGE.
S80718......................          772511  DISK--COMPRESSOR, 11TH STAGE.
S80811......................          772511  DISK--COMPRESSOR, 11TH STAGE.
T22392......................          772511  DISK--COMPRESSOR, 11TH STAGE.
T23022......................          772511  DISK--COMPRESSOR, 11TH STAGE.
T23028......................          772511  DISK--COMPRESSOR, 11TH STAGE.
T23042......................          772511  DISK--COMPRESSOR, 11TH STAGE.
BENCAM8030..................          815611  DISK--COMPRESSOR, 11TH STAGE.
BENCAP1478..................          815611  DISK--COMPRESSOR, 11TH STAGE.
BENCAP1525..................          815611  DISK--COMPRESSOR, 11TH STAGE.
BENCAP3999..................          815611  DISK--COMPRESSOR, 11TH STAGE.
3A7566......................          701412  DISK--COMPRESSOR, 12TH STAGE.
BENCAH0234..................          772512  DISK--COMPRESSOR, 12TH STAGE.
H58273......................          772512  DISK--COMPRESSOR, 12TH STAGE.
H76934......................          772512  DISK--COMPRESSOR, 12TH STAGE.
K04068......................          772512  DISK--COMPRESSOR, 12TH STAGE.
L85496......................          772512  DISK--COMPRESSOR, 12TH STAGE.
M09749......................          772512  DISK--COMPRESSOR, 12TH STAGE.
M10951......................          772512  DISK--COMPRESSOR, 12TH STAGE.
M49036......................          772512  DISK--COMPRESSOR, 12TH STAGE.
M61295......................          772512  DISK--COMPRESSOR, 12TH STAGE.
M84028......................          772512  DISK--COMPRESSOR, 12TH STAGE.
M84233......................          772512  DISK--COMPRESSOR, 12TH STAGE.
N57563......................          772512  DISK--COMPRESSOR, 12TH STAGE.
N58053......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P11181......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P11212......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P51407......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P51774......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P52401......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P77282......................          772512  DISK--COMPRESSOR, 12TH STAGE.
P97978......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R17545......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R18483......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R18596......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R45619......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R45941......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R72907......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R73448......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R73794......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R74102......................          772512  DISK--COMPRESSOR, 12TH STAGE.
R74226......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S01740......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S01866......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S01877......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S01918......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S02036......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S19787......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S51385......................          772512  DISK--COMPRESSOR, 12TH STAGE.
S51589......................          772512  DISK--COMPRESSOR, 12TH STAGE.
SO1816......................          772512  DISK--COMPRESSOR, 12TH STAGE.
B212AA0497..................          798512  DISK--COMPRESSOR, 12TH STAGE.
B212AA0517..................          798512  DISK--COMPRESSOR, 12TH STAGE.
B212AA0943..................          798512  DISK--COMPRESSOR, 12TH STAGE.
B212AA1106..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAJ6163..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAJ9174..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAK2345..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAK2388..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAK5240..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAK9190..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAL2466..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAL5411..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAL6708..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAM3530..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAM3774..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAM5489..................          798512  DISK--COMPRESSOR, 12TH STAGE.

[[Page 50179]]

 
BENCAM6218..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAN0910..................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAN6906..................          798512  DISK--COMPRESSOR, 12TH STAGE.
S94496......................          798512  DISK--COMPRESSOR, 12TH STAGE.
S94583......................          798512  DISK--COMPRESSOR, 12TH STAGE.
S94619......................          798512  DISK--COMPRESSOR, 12TH STAGE.
S94637......................          798512  DISK--COMPRESSOR, 12TH STAGE.
T28485......................          798512  DISK--COMPRESSOR, 12TH STAGE.
T43078......................          798512  DISK--COMPRESSOR, 12TH STAGE.
T43084......................          798512  DISK--COMPRESSOR, 12TH STAGE.
BENCAP3428..................          815612  DISK--COMPRESSOR, 12TH STAGE.
BENCAP7698..................          815612  DISK--COMPRESSOR, 12TH STAGE.
BENCAP7719..................          815612  DISK--COMPRESSOR, 12TH STAGE.
BENCAP7720..................          815612  DISK--COMPRESSOR, 12TH STAGE.
BENCAP8481..................          815612  DISK--COMPRESSOR, 12TH STAGE.
BENCAR2033..................          815612  DISK--COMPRESSOR, 12TH STAGE.
----------------------------------------------------------------------------------------------------------------
 The P/N and description for each SN are provided as reference information.


                                  Table 2.--Affected Rear Compressor Front Hubs
----------------------------------------------------------------------------------------------------------------
             SN                     P/N                                   Description
----------------------------------------------------------------------------------------------------------------
2U4347......................          521041  HUB--REAR COMPRESSOR, FRONT.
2U4814......................          521041  HUB--REAR COMPRESSOR, FRONT.
2U5426......................          521041  HUB--REAR COMPRESSOR, FRONT.
4R1473......................          521041  HUB--REAR COMPRESSOR, FRONT.
6P7156......................          521041  HUB--REAR COMPRESSOR, FRONT.
9L9671......................          521041  HUB--REAR COMPRESSOR, FRONT.
9L9679......................          521041  HUB--REAR COMPRESSOR, FRONT.
9P3378......................          521041  HUB--REAR COMPRESSOR, FRONT.
9S4536......................          521041  HUB--REAR COMPRESSOR, FRONT.
9V7938......................          521041  HUB--REAR COMPRESSOR, FRONT.
2U4900......................          650782  HUB--REAR COMPRESSOR, FRONT.
B-21738.....................          650782  HUB--REAR COMPRESSOR, FRONT.
2U5010......................          698145  HUB--REAR COMPRESSOR, FRONT.
9V8201......................          698145  HUB--REAR COMPRESSOR, FRONT.
3X3000......................          717623  HUB--REAR COMPRESSOR, FRONT.
3X6979......................          717623  HUB--REAR COMPRESSOR, FRONT.
5Z4371......................          717623  HUB--REAR COMPRESSOR, FRONT.
8X6204......................          717623  HUB--REAR COMPRESSOR, FRONT.
9V8645......................          717623  HUB--REAR COMPRESSOR, FRONT.
G23815......................          717623  HUB--REAR COMPRESSOR, FRONT.
G23817......................          717623  HUB--REAR COMPRESSOR, FRONT.
H05055......................          717623  HUB--REAR COMPRESSOR, FRONT.
H05059......................          717623  HUB--REAR COMPRESSOR, FRONT.
K47148......................          717623  HUB--REAR COMPRESSOR, FRONT.
N08016......................          717623  HUB--REAR COMPRESSOR, FRONT.
N08021......................          717623  HUB--REAR COMPRESSOR, FRONT.
P16923......................          717623  HUB--REAR COMPRESSOR, FRONT.
R15834......................          717623  HUB--REAR COMPRESSOR, FRONT.
S61487......................          717623  HUB--REAR COMPRESSOR, FRONT.
N08020......................          717623  HUB--REAR COMPRESSOR, FRONT.
2U4331......................          726222  HUB--REAR COMPRESSOR, FRONT.
4P2249......................          726222  HUB--REAR COMPRESSOR, FRONT.
4R2166......................          726222  HUB--REAR COMPRESSOR, FRONT.
9M2324......................          726222  HUB--REAR COMPRESSOR, FRONT.
P3757.......................          726222  HUB--REAR COMPRESSOR, FRONT.
9S4223......................          726222  HUB--REAR COMPRESSOR, FRONT.
9V8146......................          726222  HUB--REAR COMPRESSOR, FRONT.
2X6377......................          726227  HUB--REAR COMPRESSOR, FRONT.
2X6391......................          726227  HUB--REAR COMPRESSOR, FRONT.
3X2998......................          726227  HUB--REAR COMPRESSOR, FRONT.
4R1190......................          726227  HUB--REAR COMPRESSOR, FRONT.
6X0015......................          726227  HUB--REAR COMPRESSOR, FRONT.
6X0071......................          726227  HUB--REAR COMPRESSOR, FRONT.
9P4067......................          726227  HUB--REAR COMPRESSOR, FRONT.
9V8100......................          726227  HUB--REAR COMPRESSOR, FRONT.
9V8331......................          726227  HUB--REAR COMPRESSOR, FRONT.
4R1272......................          726230  HUB--REAR COMPRESSOR, FRONT.
9V8024......................          726230  HUB--REAR COMPRESSOR, FRONT.

[[Page 50180]]

 
9V8107......................          726230  HUB--REAR COMPRESSOR, FRONT.
----------------------------------------------------------------------------------------------------------------
 The P/N and description for each SN are provided as reference information.

Prohibition Against Installation of Disks and Hubs Listed in Table 1

    (g) After the effective date of this AD, do not install any disk 
or hub listed in Table 1 of this AD that has zero cycles-in-service 
since May 14, 2001.
    (h) After the effective date of this AD, do not return to 
service any engine that has a disk or hub listed in Table 1 of this 
AD that has zero cycles-in-service since May 14, 2001.

Definition of Shop Visit

    (i) A shop visit is defined as an engine and/or module removal 
where engine maintenance entails separation of pairs of major engine 
flanges or the removal of a disk, hub or spool at a maintenance 
facility, regardless of the scheduled maintenance action or the 
reason for engine removal.

Definition of Part Accessibility

    (j) For the purposes of this AD, accessibility of the HPC rear 
hub is removing the hub from the engine.

Alternative Methods of Compliance

    (k) The Manager, Engine Certification Office, has the authority 
to approve alternative methods of compliance for this AD if 
requested using the procedures found in 14 CFR 39.19.

Related Information

    (l) None.

Material Incorporated by Reference

    (m) You must use Pratt & Whitney Alert Service Bulletin (ASB) 
No. JT8D A6442, dated April 4, 2003, to perform the actions required 
by this AD. The Director of the Federal Register approved the 
incorporation by reference of this service bulletin in accordance 
with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Pratt & Whitney, 400 
Main St., East Hartford, CT 06108; telephone (860) 565-7700; fax 
(860) 565-1605, for a copy of this service information. You may 
review copies at the Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street, SW., Nassif Building, Room PL-
401, Washington, DC 20590-0001, on the Internet at <a href="http://dms.dot.gov">http://dms.dot.gov</a>, or at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: <a href="http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html">http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html</a>.

    Issued in Burlington, Massachusetts, on August 19, 2005.
Richard Noll,
Acting Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 05-16903 Filed 8-25-05; 8:45 am]
BILLING CODE 4910-13-P