AD 2001-17-15

[Federal Register Volume 66, Number 166 (Monday, August 27, 2001)]
[Rules and Regulations]
[Pages 44945-44947]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 01-21220]



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Federal Register/Vol. 66, No. 166/Monday, August 27, 2001/Rules and 
Regulations

[[Page 44945]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 94-ANE-38-AD; Amendment 39-12406; AD 2001-17-15]
RIN 2120-AA64


Airworthiness Directives; Honeywell International Inc. (formerly 
AlliedSignal Inc. and Textron Lycoming Inc.) LTS101 Series Turboshaft 
and LTP101 Series Turboprop Engines

AGENCY: Federal Aviation Administration, DOT.

ACTION: Final rule.

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SUMMARY: This amendment supersedes an existing airworthiness directive 
(AD), AD 95-09-02, that applies to Honeywell International Inc. 
(formerly AlliedSignal Inc. and Textron Lycoming Inc.) LTS101 series 
turboshaft and LTP101 series turboprop engines. That AD superseded 
priority letter AD 94-19-01 and currently requires initial and 
repetitive inspections of the engine fuel pump internal drive splines 
for wear and replacement of engine fuel pumps that exhibit wear beyond 
specified limits.This amendment requires a reduction in inspection 
intervals for the engine fuel pump internal drive splines. This 
amendment is prompted by a report from the engine manufacturer that 13 
percent of the pumps installed on aircraft that were returned from the 
field for the required 900-hour interval inspection revealed excessive 
internal drive spline wear. The actions specified by this AD are 
intended to prevent worn splines in fuel pumps which could cause engine 
fuel pump failure, which can result in total engine power loss and 
possible loss of the aircraft.

DATES: Effective date October 1, 2001. The incorporation by reference 
of certain publications listed in the regulations is approved by the 
Director of the Federal Register as of October 1, 2001.

ADDRESSES: The service information referenced in this AD may be 
obtained from Honeywell International, Inc., Attn: Data Distribution, 
M/S 64-3/2101-201, P.O. Box 29003, Phoenix, AZ 85038-9003, telephone: 
(602) 365-2493, fax: (602) 365-5577. This information may be examined 
at the Federal Aviation Administration (FAA), New England Region, 
Office of the Regional Counsel, 12 New England Executive Park, 
Burlington, MA; or at the Office of the Federal Register, 800 North 
Capitol Street, NW, suite 700, Washington, DC.

FOR FURTHER INFORMATION CONTACT: Robert Baitoo, Aerospace Engineer, Los 
Angeles Aircraft Certification Office, FAA, Transport Airplane 
Directorate, 3960 Paramount Blvd., Lakewood, CA 90712-4137; telephone 
(562) 627-5245, fax (562) 627-5210.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal 
Aviation Regulations (14 CFR part 39) by superseding AD 95-09-02, 
Amendment 39-9206 (60 FR 20189, April 25, 1995), applicable to Textron 
Lycoming LTS101 series turboshaft and LTP101 series turboprop engines 
incorporating Chandler Evans Company (CECO) engine fuel pumps, part 
numbers (P/N's) 4-301-128-01, -02, -03, -04, -05, -06, -07, -08, -09, 
and -10 was published in the Federal Register on September 26, 2000 (65 
FR 57753). That action proposed to require a reduction in inspection 
intervals for the engine fuel pump internal drive splines in accordance 
with AlliedSignal Service Bulletin (SB) LT 101-73-20-0203, dated August 
18, 1999. Since the publication of the NPRM, Honeywell International 
Inc. purchased AlliedSignal and has issued SB LT 101-73-20-0203, 
Revision 1, dated January 5, 2001.

Comments

    Interested persons have been afforded an opportunity to participate 
in the making of this amendment. No comments were received on the 
proposal or the FAA's determination of the cost to the public. However, 
certain editorial changes have been made to the ``Initial Inspection'' 
section of the AD Compliance for clarification without changing the 
requirements of the AD.

Updated Service Bulletin

    Since the publication of the NPRM, the FAA has reviewed and 
approved the contents of Honeywell International Inc. SB LT 101-73-20-
0203, Revision 1, dated January 5, 2001. The revised SB differs from 
the original SB only in that it also covers engine model LTS101-600A-3A 
and pump P/N 4-301-128-11. Engine model LTS-600A-3A represents a 
conversion from engine model LTS-600A-3, and the addition of this new 
engine model to the applicability of this AD will not increase the 
number of engines affected by this AD. Pump P/N 4-301-128-11 is 
installed on engine model LTS-600A-3A. Therefore, the FAA has added 
engine model LTS-600A-3A and pump P/N 4-301-128-11 to the applicability 
of this AD.

Conclusion

    After careful review of the available data, the FAA has determined 
that air safety and the public interest require the adoption of the 
rule with the changes described. The FAA has determined that these 
changes will neither increase the economic burden on any operator nor 
increase the scope of the AD.

Economic Analysis

    Because initial removal and replacement activities are scheduled at 
intervals compatible with existing AD 95-09-02, no additional impact on 
part and labor cost is anticipated. The number of engines affected by 
this AD does not change.

Regulatory Impact

    This final rule does not have federalism implications, as defined 
in Executive Order 13132, because it would 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. Accordingly, 
the FAA has not consulted with state authorities prior to publication 
of this final rule.
    For the reasons discussed above, I certify that this action (1) is 
not a ``significant regulatory action'' under Executive Order 12866; 
(2) is not a ``significant rule'' under the DOT Regulatory Policies and 
Procedures (44 FR 11034, February 26, 1979); and (3) if promulgated, 
will not have a significant economic impact, positive or negative,

[[Page 44946]]

on a substantial number of small entities under the criteria of the 
Regulatory Flexibility Act. A final evaluation has been prepared for 
this action and it is contained in the Rules Docket. A copy of it may 
be obtained by contacting the Rules Docket at the location provided 
under the caption ADDRESSES.

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

    Accordingly, pursuant to the authority delegated to me by the 
Administrator, the Federal Aviation Administration amends part 39 of 
the Federal Aviation Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

    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]

    2. Section 39.13 is amended by removing Amendment 39-9206 (60 FR 
20189, April 25, 1995) and by adding a new airworthiness directive 
(AD), Amendment 39-12406, to read as follows:

AD 2001-17--15  Honeywell International Inc.: Amendment 39-12406. 
Docket No. 94-ANE-38-AD. Supersedes AD 95-09-02, Amendment 39-9206.

    Applicability: This airworthiness directive (AD) is applicable 
to Honeywell International Inc. (formerly AlliedSignal Inc. and 
Textron Lycoming Inc.) LTS101-600A-2, -600A-3 and -600A-3A series 
turboshaft and LTP101-600A-1A, -700A-1A series turboprop engines 
incorporating Chandler Evans Company (CECO) engine fuel pumps, part 
numbers (P/N's) 4-301-128-01, -02, -03, -04, -05, -06, -07, -08, -
09, and -10 and -11. These engines are installed on but not limited 
to the following single-engine aircraft: Eurocopter France (formerly 
Aerospatiale) AS350D series helicopters and Airtractor AT302, 
Pacific Aero 08-600, and Page (Ayres S-2R) Thrush series airplanes. 
This AD is not applicable to engines installed on twin-engine 
aircraft.

    Note 1: This AD applies to each engine identified in the 
preceding applicability provision, regardless of whether it has been 
modified, altered, or repaired in the area subject to the 
requirements of this AD. For engines that have been modified, 
altered, or repaired so that the performance of the requirements of 
this AD is affected, the owner/operator must request approval for an 
alternative method of compliance in accordance with paragraph (h) of 
this AD. The request should include an assessment of the effect of 
the modification, alteration, or repair on the unsafe condition 
addressed by this AD; and, if the unsafe condition has not been 
eliminated, the request should include specific proposed actions to 
address it.

Compliance

    Required as indicated, unless accomplished previously.
    To prevent engine fuel pump failure, which can result in total 
engine power loss and possible loss of the aircraft, accomplish the 
following:

Initial Inspection

    (a) Remove from service and return to CECO for inspection, 
engine fuel pumps with greater than 751 hours time-in-service (TIS), 
but less than 900 hours TIS since new, overhaul, or time since last 
inspection on the effective date of this AD, within the next 100 
hours TIS after the effective date of this AD, in accordance with 
AlliedSignal Service Bulletin (SB) LT 101-73-20-0203, dated August 
18, 1999, or Honeywell International Inc. SB LT 101-73-20-0203, 
Revision 1, dated January 5, 2001.
    (b) Remove from service and return to CECO for inspection, 
engine fuel pumps with greater than 451 hours TIS, but less than or 
equal to 750 hours TIS since new, overhaul, or time since last 
inspection, on the effective date of this AD, within the next 150 
hours TIS after the effective date of this AD, in accordance with 
AlliedSignal SB LT 101-73-20-0203, dated August 18, 1999, or 
Honeywell International Inc. SB LT 101-73-20-0203, Revision 1, dated 
January 5, 2001.
    (c) Remove from service and return to CECO for inspection, 
engine fuel pumps with less than or equal to 450 hours TIS, but less 
than 600 hours TIS since new, overhaul, or time-since-last-
inspection on the effective date of this AD, within the next 150 
hours TIS after the effective date of this AD, whichever occurs 
first, in accordance with AlliedSignal SB LT 101-73-20-0203, dated 
August 18, 1999, or Honeywell International Inc. SB LT 101-73-20-
0203, Revision 1, dated January 5, 2001.
    (d) The time since last inspection in compliance with AD 95-09-
02 may be applied to satisfy the inspection time requirements of 
(a), (b), and (c).
    (e) Thereafter, remove from service and return to CECO for 
inspection, engine fuel pump at intervals not to exceed 600 hours 
TIS since the last inspection in accordance with the Accomplishment 
Instructions of AlliedSignal SB LT 101-73-20-0203, dated August 18, 
1999, or Honeywell International Inc. SB LT 101-73-20-0203, Revision 
1, dated January 5, 2001.
    (f) Engine fuel pumps that exhibit wear beyond the limits 
specified in AlliedSignal SB LT 101-73-20-0203, dated August 18, 
1999, or Honeywell International Inc. SB LT 101-73-20-0203, Revision 
1, dated January 5, 2001, may not be returned to service.

Definition

    (g) For the purposes of this AD, a serviceable part is defined 
as a new part, or a part that has been inspected by CECO in 
accordance with AlliedSignal SB LT 101-73-20-0203, dated August 18, 
1999, or Honeywell International Inc. SB LT 101-73-20-0203, Revision 
1, dated January 5, 2001, and that has not accumulated 600 hours TIS 
since new, or since inspection by CECO.

Alternative Method of Compliance

    (h) An alternative method of compliance or adjustment of the 
compliance time that provides an acceptable level of safety may be 
used if approved by the Manager, Los Angeles Aircraft Certification 
Office (LAACO). Operators must submit their requests through an 
appropriate FAA Principal Maintenance Inspector, who may add 
comments and then send it to the Manager, LAACO.

    Note 2: Information concerning the existence of approved 
alternative methods of compliance with this airworthiness directive, 
if any, may be obtained from the LAACO. An alternative method of 
compliance or adjustment of the compliance time that provides an 
acceptable level of safety may be used if approved by the Manager, 
LAACO. The request should be forwarded through an appropriate FAA 
Principal Maintenance Inspector, who may add comments and then send 
it to the Manager, LAACO.

Special Flight Permits

    (i) Special flight permits may be issued in accordance with 
sections 21.197 and 21.199 of the Federal Aviation Regulations (14 
CFR 21.197 and 21.199) to operate the aircraft to a location where 
the requirements of this AD can be accomplished.

Documents That Have Been Incorporated by Reference

    (j) The inspection shall be done in accordance with the 
following AlliedSignal and Honeywell International Inc. service 
bulletins:

----------------------------------------------------------------------------------------------------------------
               Document No.                     Pages and revision                        Date
----------------------------------------------------------------------------------------------------------------
AlliedSignal, SB LT 101-73-20-0203, Total  All--Original..............  August 18, 1999.
 pages: 4.
Honeywell International, SB No. LT 101-73-
 20-0203.
      Total pages: 4.....................  All--Revision 1............  January 5, 2001.
----------------------------------------------------------------------------------------------------------------

This incorporation by reference was approved by the Director of the 
Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 
51. Copies may be obtained from Honeywell International, Inc, Attn: 
Data Distribution, M/S 64-3/2101-201, P.O. Box

[[Page 44947]]

29003, Phoenix, AZ 85038-9003, telephone: (602) 365-2493, fax: (602) 
365-5577. Copies may be inspected at the FAA, New England Region, 
Office of the Regional Counsel, 12 New England Executive Park, 
Burlington, MA; or at the Office of the Federal Register, 800 North 
Capitol Street, NW., suite 700, Washington, DC.
    (k) This amendment becomes effective on October 1, 2001.

    Issued in Burlington, Massachusetts, on August 16, 2001.
Jay J. Pardee,
Manager, Engine and Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 01-21220 Filed 8-24-01; 8:45 am]
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