AD 2005-07-04 - Airworthiness Directives; Airbus Model A330, A340-200, and A340-300 Series Ai...

Type	Manufacturer	Model	Details
aircraft	Airbus	A330	Airworthiness Directives; Airbus Model A330, A340-200, and A340-300 Series Airplanes

Unsafe Condition

Degraded operation of the trimmable horizontal stabilizer actuator (THSA) due to the entrance of water into the ball nut, which could lead to reduced controllability of the airplane.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect for discrepancies of the ball screw assembly and take corrective action if necessary. Repetitively grease the THSA ball nut and replace the THSA if necessary. Modify or replace the ball nut assembly as applicable to end certain repetitive inspections.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight if a 'F/CTL PRIM X PITCH FAULT' or 'F/CTL STAB CTL FAULT' warning message is displayed on the ECAM associated with the 'PITCH TRIM ACTR (1CS)' maintenance message.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Airbus Model A330, A340-200, and A340-300 series airplanes, including specific serial numbers as detailed in Airbus Service Bulletin A330-27-3102, Revision 05.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

This amendment supersedes an existing airworthiness directive (AD), applicable to the airplane models listed above. That AD currently requires repetitive inspections to detect discrepancies of the transfer tubes and the collar of the ball nut of the trimmable horizontal stabilizer actuator (THSA), and corrective action if necessary. This amendment expands the applicability of the existing AD; and requires new repetitive inspections for discrepancies of the ball screw assembly; corrective action if necessary; repetitive greasing of the THSA ball nut, and replacement of the THSA if necessary; and a modification or replacement (as applicable) of the ball nut assembly, which would end certain repetitive inspections. The actions specified by this AD are intended to prevent degraded operation of the THSA due to the entrance of water into the ball nut. Degraded operation could lead to reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

Document Text

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[Federal Register Volume 70, Number 60 (Wednesday, March 30, 2005)]
[Rules and Regulations]
[Pages 16104-16109]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 05-6111]

-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2001-NM-243-AD; Amendment 39-14028; AD 2005-07-04]
RIN 2120-AA64

Airworthiness Directives; Airbus Model A330, A340-200, and A340-
300 Series Airplanes

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

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: This amendment supersedes an existing airworthiness directive
(AD), applicable to the airplane models listed above. That AD currently
requires repetitive inspections to detect discrepancies of the transfer
tubes and the collar of the ball nut of the trimmable horizontal
stabilizer actuator (THSA), and corrective action if necessary. This
amendment expands the applicability of the existing AD; and requires
new repetitive inspections for discrepancies of the ball screw
assembly; corrective action if necessary; repetitive greasing of the
THSA ball nut, and replacement of the THSA if necessary; and a
modification or replacement (as applicable) of the ball nut assembly,
which would end certain repetitive inspections. The actions specified
by this AD are intended to prevent degraded operation of the THSA due
to the entrance of water into the ball nut. Degraded operation could
lead to reduced controllability of the airplane. This action is
intended to address the identified unsafe condition.

DATES: Effective May 4, 2005.
The incorporation by reference of certain publications, as listed
in the regulations, is approved by the Director of the Federal Register
as of May 4, 2005.
The incorporation by reference of certain other publications, as
listed in the regulations, was approved previously by the Director of
the Federal Register as of June 26, 2001 (66 FR 31143, June 11, 2001).

ADDRESSES: The service information referenced in this AD may be
obtained from Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac
Cedex, France. This information may be examined at the Federal Aviation
Administration (FAA), Transport Airplane Directorate, Rules Docket,
1601 Lind Avenue, SW., Renton, Washington.

FOR FURTHER INFORMATION CONTACT: Dan Rodina, Aerospace Engineer,
International Branch, ANM-116, FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton, Washington 98055-4056; telephone (425)
227-2125; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION: A proposal to amend part 39 of the Federal
Aviation Regulations (14 CFR part 39) by superseding AD 2001-11-09,
amendment 39-12252 (66 FR 31143, June 11, 2001), which is applicable to
certain Airbus Model A330 and A340 series airplanes, was published as a
supplemental notice of proposed rulemaking (NPRM) in the Federal
Register on August 31, 2004 (69 FR 53016). That action proposed to
expand the applicability of the existing AD; and require new repetitive
inspections for discrepancies of the ball screw assembly; corrective
action if necessary; repetitive greasing of the trimmable horizontal
stabilizer actuator (THSA) ball nut, and replacement of the THSA if
necessary; and a modification or replacement (as applicable) of the
ball nut assembly, which would end certain repetitive inspections.

Explanation of New Relevant Service Information

Since the preparation of the supplemental NPRM, Airbus has issued
Service Bulletin A330-27-3102, Revision 05, dated July 7, 2004. (The
supplemental NPRM refers to Airbus Service Bulletin A330-27-3102,
Revision 04, dated December 8, 2003, as the acceptable source of
service information for accomplishing certain inspections and
corrective actions.) Airbus issued Revision 05 to expand the
effectivity to include Models A330-302 and -303 airplanes, and to list
additional manufacturer's serial numbers in the service bulletin.
Revision 05 does not contain any new procedures. Accordingly, we have
revised paragraph (e) of this AD to refer to Revision 05 as the
acceptable source of service information for the actions required by
that paragraph. We have also revised paragraph (i)(2) of this AD to
state that inspections and corrective actions accomplished previously
in accordance with Airbus Service Bulletin A330-27-3102, Revision 04,
are acceptable for compliance with paragraph (e). We find that
referring to Revision 05 does not result in an expansion of the
applicability of this AD because the applicability of the supplemental
NPRM includes all Airbus Model A330, A340-200, and A340-300 series
airplanes.
The Direction G[eacute]n[eacute]rale de l'Aviation Civile (DGAC),
which is the airworthiness authority for France,

[[Page 16105]]

classified Airbus Service Bulletin A330-27-3102, Revision 05, as
mandatory and issued French airworthiness directive F-2002-414 R3,
dated July 7, 2004, to ensure the continued airworthiness of these
airplanes in France. We have revised Note 8 of this AD to refer to this
latest revision of the French airworthiness directive.

Explanation of Editorial Change

We have revised paragraphs (c)(3) and (f) of this AD to more
accurately state the warning messages that may be displayed on the
electronic centralized aircraft monitor (ECAM) associated with the
``PITCH TRIM ACTR (1CS)'' maintenance message.

Comments

Interested persons have been afforded an opportunity to participate
in the making of this amendment. Due consideration has been given to
the comments received.

Request To Remove Paragraph (f)

One commenter requests that we revise the supplemental NPRM to
remove paragraph (f), which requires inspecting in accordance with
paragraph (e) of the supplemental NPRM before further flight if a ``F/
CTL PRIM X PITCH FAULT'' or ``F/CTL STAB CTL FAULT'' warning message is
displayed on the ECAM associated with the ``PITCH TRIM ACTR (1CS).''
The commenter states that it has no mechanism to document compliance
with this requirement because, if the ECAM warning is displayed in
flight, there is no process to ensure that the pilot will record the
warning in the airplane logbook, though this is the general practice.
The commenter further states that the normal procedures if the
subject ECAM message appears would lead a mechanic to the Airbus A330/
A340 Troubleshooting Manual (TSM), most likely to TSM Task 27-90-00-
810-847, ``Failure of the Pitch Trim Actuator Detected by the FCPC1 or
FCPC2.'' The commenter explains that the first step of this task would
be to perform an operational test of the servo loops of the trimmable
horizontal stabilizer. If this operational test shows no discrepancy,
no further action would be necessary. If the test confirms a
discrepancy, the TSM specifies a detailed visual inspection of the ball
screw assembly in accordance with Task 27-44-51-210-805 of the Airbus
A330/A340 Airplane Maintenance Manual (AMM). The commenter feels that
the TSM is the primary source of guidance for diagnosing system
problems and that the procedures in the TSM would provide adequate
guidance should a subject ECAM message appear. Thus, the commenter
states that the requirements of paragraph (f) of the supplemental NPRM
are not warranted. The commenter does note that there is no mechanism
for it ``to generate the requirement to refer to the specific TSM task
and document its compliance in every instance.''
We do not concur that paragraph (f) of this AD is unnecessary.
Section 121.563 (``Reporting mechanical irregularities'') of the
Federal Aviation Regulations (FARs) (14 CFR 121.563) requires that the
pilot ensure that all mechanical irregularities that occur during
flight are entered into the maintenance log at the end of the flight.
That section also requires that, before each flight, the pilot must
determine the status of any irregularity entered in the maintenance log
at the end of the preceding flight. A ``F/CTL PRIM X PITCH FAULT''
message is informational only and will remain displayed on ECAM through
landing because there is no action that the crew can take that will
correct the failure. Crew procedures for the ``F/CTL STAB CTL FAULT''
will also not correct the failure; therefore that ECAM message will
remain displayed through landing. ECAM messages remaining after the
flight are considered mechanical irregularities that must be entered in
the maintenance log in accordance with 14 CFR 121.563. We have not
changed the AD in this regard.
However, we do concur that performing an operational test in
accordance with TSM Task 27-90-00-810-847 would be an acceptable means
of complying with paragraph (e) of this AD, provided that, if the
operational test confirms a discrepancy, the detailed inspection
required by paragraph (e) of this AD, and any necessary corrective
actions, are done before further flight. We have revised paragraph (e)
of this AD accordingly.

Request To Allow Alternative Method for Repetitive Inspections

The first commenter requests that, if we decide that it is
necessary to retain paragraph (f) of the supplemental NPRM, we refer to
AMM Task 27-44-51-210-805 as an alternative method for doing the
repetitive inspections. A second commenter makes the same request. The
commenters note that the procedures in this AMM task are equivalent to
those in Airbus Service Bulletin A330-27-3102, Revision 04, which is
referenced in the supplemental NPRM as the appropriate source of
service information for the necessary inspection.
We concur. We have revised paragraph (e) of this AD to state that
an inspection done according to Task 27-44-51-210-805 of the AMM is
acceptable for compliance with that paragraph. (Paragraph (f) of this
AD refers to the inspection in paragraph (e).)

Request To Clarify Terminology

One commenter requests that we revise paragraph (d) of the
supplemental NPRM to revise the reference to grease being expelled
through the ``drain hole.'' The commenter notes that the lubrication
procedures specified in Chapter 12-22-27 of the Airbus A330/A340 AMM
identify this orifice as the ``vent hole.'' The commenter requests that
the terminology be changed for clarification. We concur and have
revised paragraph (d) of this AD accordingly.

Request To Revise Cost Impact Estimate

One commenter requests that we revise the number of affected
airplanes estimated in the Cost Impact section of the supplemental
NPRM. The commenter notes that we estimate that 9 Model A330 series
airplanes would be affected. The commenter operates 10 affected U.S.-
registered Model A330 series airplanes.
We concur. Since the issuance of the original NPRM and the
supplemental NPRM, more Model A330 series airplanes have been
registered in the U.S. We have revised the estimated number of affected
Model A330 series airplanes to 19.

Conclusion

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

Cost Impact

There are approximately 19 Model A330 series airplanes of U.S.
registry that are affected by this AD. Currently, there are no affected
Model A340-200 or -300 series airplanes on the U.S. Register. However,
if an affected Model A340-200 or -300 series airplane is imported and
placed on the U.S. Register in the future, the following costs will
also apply to those airplanes.
The inspections (in accordance with Airbus All Operators Telex
(AOT) A330-27A3088 or A340-27A4093, as applicable) that are currently
required

[[Page 16106]]

by AD 2001-11-09 take approximately 1 work hour per airplane, per
inspection cycle, at an average labor rate of $65 per work hour. Based
on these figures, the cost impact of the currently required actions on
U.S. operators is estimated to be $1,235, or $65 per airplane, per
inspection cycle.
The new inspections (in accordance with Airbus SBs A330-27-3088 or
A340-27-4093, as applicable) that are required by this AD take
approximately 1 work hour per airplane, per inspection cycle, at an
average labor rate of $65 per work hour. Based on these figures, the
cost impact of this requirement on U.S. operators is estimated to be
$1,235, or $65 per airplane, per inspection cycle.
The new greasing action that is required by this AD takes
approximately 1 work hour per airplane, per maintenance cycle, at an
average labor rate of $65 per work hour. Based on these figures, the
cost impact of this requirement on U.S. operators is estimated to be
$1,235, or $65 per airplane, per maintenance cycle.
In addition to the actions stated above, certain airplanes may be
subject to additional actions. The following table contains the cost
impact estimate for each airplane affected by the SBs listed below, at
an average labor rate of $65 per work hour:

----------------------------------------------------------------------------------------------------------------
Estimated number of work Estimated cost
For airplanes listed in Airbus SB-- hours Estimated parts cost per airplane
----------------------------------------------------------------------------------------------------------------
A330-27-3085 or A340-27-4089, both 12........................ No charge................. $780
Revision 02.
A330-27-3093 or A340-27-4099, both 6......................... No charge................. 390
Revision 01.
A330-27-3052, Revision 03............... 6......................... No charge................. 390
A330-27-3007, Revision 01............... 1......................... No charge................. 65
A330-27-3015............................ 2......................... No charge................. 130
A330-27-3047, Revision 01............... 2......................... No charge................. 130
A330-27-3050............................ 2......................... No charge................. 130
A330-55-3020, Revision 01............... 2 (inspection only)....... None...................... 130
A340-27-4059, Revision 03............... 6......................... No charge................. 390
A340-27-4007............................ 2......................... No charge................. 130
A340-27-4025............................ 2......................... No charge................. 130
A340-27-4054, Revision 01............... 2......................... No charge................. 130
A340-27-4057............................ 2......................... No charge................. 130
A340-55-4021, Revision 01............... 2 (inspection only)....... None...................... 130
----------------------------------------------------------------------------------------------------------------

The cost impact figures discussed above are based on assumptions
that no operator has yet accomplished any of the requirements of this
AD action, and that no operator would accomplish those actions in the
future if this AD were not adopted. The cost impact figures discussed
in AD rulemaking actions represent only the time necessary to perform
the specific actions actually required by the AD. These figures
typically do not include incidental costs, such as the time required to
gain access and close up, planning time, or time necessitated by other
administrative actions.

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 Impact

The regulations adopted herein 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. Therefore, it
is determined that this final rule does not have federalism
implications under Executive Order 13132.
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 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. A final evaluation has been prepared for this action
and it is contained in the Rules Docket. A copy of it may be obtained
from 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

0
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

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. Section 39.13 is amended by removing amendment 39-12252 (66 FR
31143, June 11, 2001), and by adding a new airworthiness directive
(AD), amendment 39-14028, to read as follows:

2005-07-04 Airbus: Amendment 39-14028. Docket 2001-NM-243-AD.
Supersedes AD 2001-11-09, Amendment 39-12252.

Applicability: All Model A330, A340-200, and A340-300 series
airplanes; certificated in any category.
Compliance: Required as indicated, unless accomplished
previously.
To prevent degraded operation of the trimmable horizontal
stabilizer actuator (THSA) due to the entrance of water into the
ball nut, which could result in reduced controllability of the
airplane, accomplish the following:

[[Page 16107]]

Requirements of AD 2001-11-09

Repetitive Inspections

(a) For Model A330, A340-200, and A340-300 series airplanes
equipped with a THSA part number (P/N) 47172, and on which Airbus
Modification 45299 has been performed: Within 150 flight hours from
June 26, 2001 (the effective date of AD 2001-11-09, amendment 39-
12252), perform a detailed inspection to detect discrepancies in the
THSA (including distortion of the transfer tubes, disconnection of
the tubes, and distortion of the collar of the ball nut), in
accordance with Airbus All Operators Telex (AOT) A330-27A3088 (for
Model A330 series airplanes) or A340-27A4093 (for Model A340 series
airplanes), both dated April 5, 2001, as applicable. If any
discrepancy, as defined in paragraph 4-2-2/Rejection Criteria of the
applicable AOT, is detected, prior to further flight, replace the
THSA with a serviceable one, in accordance with the applicable AOT.

Note 1: For the purposes of this AD, a detailed inspection is
defined as: ``An intensive visual examination of a specific
structural area, system, installation, or assembly to detect damage,
failure, or irregularity. Available lighting is normally
supplemented with a direct source of good lighting at intensity
deemed appropriate by the inspector. Inspection aids such as mirror,
magnifying lenses, etc., may be used. Surface cleaning and elaborate
access procedures may be required.''

(b) At intervals not to exceed 150 flight hours, repeat the
inspection mandated in paragraph (a) of this AD, until paragraph (c)
of this AD has been accomplished.

New Requirements of This AD

Repetitive Detailed Inspections of THSA Ball Nut and Corrective Action

(c) For airplanes equipped with a THSA having P/N 47172 or
47147-400: At the applicable compliance time specified in paragraph
(c)(1), (c)(2), or (c)(3) of this AD, perform a detailed inspection
of the transfer tubes and collar on the THSA ball nut to detect
discrepancies, including ball migration, distortion, or evidence of
disconnection of the THSA ball nut; in accordance with Airbus
Service Bulletin A330-27-3088 (for Model A330 series airplanes) or
A340-27-4093 (for Model A340-200 and -300 series airplanes), both
Revision 04, both dated September 5, 2002; as applicable. Repeat
this inspection at intervals not to exceed 150 flight hours until
paragraph (g) of this AD is accomplished. If any discrepancy is
found during any inspection in accordance with this paragraph,
before further flight, repair the THSA, in accordance with a method
approved by the Manager, International Branch, ANM-116, Transport
Airplane Directorate, FAA; or the Direction G[eacute]n[eacute]rale
de l'Aviation Civile (DGAC) (or its delegated agent).
(1) For airplanes equipped with a THSA having P/N 47172 or
47147-400: Except as provided by paragraph (c)(3) of this AD, for
airplanes inspected before the effective date of this AD in
accordance with paragraph (a) of this AD, do the initial inspection
within 150 flight hours since the most recent inspection in
accordance with paragraph (a) or (b) of this AD. Accomplishment of
this inspection terminates the repetitive inspections required by
paragraph (b) of this AD.
(2) For airplanes equipped with a THSA having P/N 47172 or
47147-400: Except as provided by paragraph (c)(3) of this AD, for
airplanes not inspected before the effective date of this AD in
accordance with paragraph (a) of this AD, do the initial inspection
within 150 flight hours after the effective date of this AD.
Accomplishment of this inspection within the compliance time
specified in paragraph (a) of this AD eliminates the need to
accomplish the inspection in paragraph (a) of this AD and terminates
the repetitive inspections required by paragraph (b) of this AD.
(3) For airplanes equipped with a THSA having P/N 47172 or
47147-400: If the ``F/CTL PRIM X PITCH FAULT'' or ``F/CTL STAB CTL
FAULT'' message is displayed on the electronic centralized aircraft
monitor (ECAM) associated with the ``PITCH TRIM ACTR (1CS)''
maintenance message, do the inspection in paragraph (c) of this AD
before further flight after the message is displayed on the ECAM.

Repetitive Greasing Procedure

(d) For airplanes equipped with a THSA having P/N 47172, 47172-
300, or 47147-XXX (where ``XXX'' is any dash number): Within 700
flight hours after accomplishment of the last greasing of the ball
nut of the THSA, grease the ball nut of the THSA in accordance with
a method approved by the Manager, International Branch, ANM-116; or
the DGAC (or its delegated agent). Doing the actions in Chapter 12-
22-27, page block 301, of the Airbus A330/A340 Airplane Maintenance
Manual (AMM) is one approved method. Repeat the greasing procedures
at intervals not to exceed 700 flight hours. If, during any
accomplishment of the greasing procedure, the new grease is expelled
from the transfer tube (instead of through the vent hole): Before
further flight, replace the THSA with a new or serviceable THSA in
accordance with a method approved by either the Manager,
International Branch, ANM-116, Transport Airplane Directorate, FAA;
or the DGAC (or its delegated agent). Replacement of the THSA in
accordance with Chapter 27-44-51 of the Airbus A330/A340 AMM is one
approved method.

Repetitive Inspections of the Ball Screw Assembly and Corrective
Actions

(e) For airplanes equipped with a THSA having P/N 47172, 47172-
300, or 47147-XXX (where ``XXX'' is any dash number): Except as
provided by paragraph (f) of this AD, within 700 flight hours after
the effective date of this AD, perform a detailed inspection of the
ball screw assembly for discrepancies; including cracks, metallic
debris, dents, corrosion, loose nuts, and damaged or missing lock
washers and pins; and an inspection of the gap between the secondary
nut tenons and the transfer plates using a feeler gage to ensure
free movement; in accordance with Airbus Service Bulletins A330-27-
3102, Revision 05, dated July 7, 2004 (for Model A330 series
airplanes); or A340-27-4107, Revision 04, dated June 20, 2003 (for
Model A340-200 and -300 series airplanes); as applicable. A detailed
inspection done in accordance with Task 27-44-51-210-805 of the
Airbus A330/A340 AMM is one approved method of compliance with the
inspection requirements of this paragraph. An operational test in
accordance with Task 27-90-00-810-847 is another approved method for
compliance with the inspection requirements of this paragraph,
provided that, if the operational test confirms a discrepancy, the
detailed inspection required by this paragraph, and applicable
corrective actions, are done before further flight.
(1) Repeat the inspection at intervals not to exceed 700 flight
hours, except as provided by paragraph (f) of this AD.
(2) If any discrepancy is found that is outside the limits
specified in the applicable service bulletin, before further flight,
replace the THSA with a new part, in accordance with a method
approved by either the Manager, International Branch, ANM-116; or
the DGAC (or its delegated agent). Replacement of the THSA in
accordance with Chapter 27-44-51 of the Airbus A330/A340 AMM is one
approved method.

Note 2: There is no terminating action at this time for the
repetitive actions required by paragraphs (d) and (e) of this AD.

(f) If the ``F/CTL PRIM X PITCH FAULT'' or ``F/CTL STAB CTL
FAULT'' message is displayed on the ECAM associated with the ``PITCH
TRIM ACTR (1CS)'' maintenance message, do the inspection in
paragraph (e) of this AD before further flight after the message is
displayed on the ECAM.

Modification

(g) Within 24 months after the effective date of this AD, modify
the ball nut of each THSA by doing paragraph (g)(1) or (g)(2) of
this AD, as applicable. Accomplishment of paragraph (g)(1) or (g)(2)
of this AD terminates the repetitive inspections required by
paragraph (c) of this AD.
(1) For THSAs having P/N 47172: Modify the ball nut of the THSA,
or replace the existing THSA with a serviceable part having P/N
47172-300; in accordance with Airbus Service Bulletin A330-27-3085
(for Model A330 series airplanes) or A340-27-4089 (for Model A340-
313 series airplanes), both Revision 02, both dated September 5,
2002; as applicable.

Note 3: Airbus Service Bulletins A330-27-3085 and A340-27-4089
refer to TRW Aeronautical Systems Service Bulletin 47172-27-03,
dated October 24, 2001, as the appropriate source of service
information for additional instructions for accomplishing the
modification of the ball nut of the THSA.

(2) For THSAs having P/N 47147-2XX, 47147-3XX, or 47147-400
(where ``XX'' represents any dash number): Modify the ball nut of
the THSA, or replace the existing THSA with an improved part having
P/N 47147-500; as applicable; in accordance with Airbus Service
Bulletin A330-27-3093 (for Model A330 series airplanes) or A340-27-
4099 (for Model A340-200 and -300 series

[[Page 16108]]

airplanes), both Revision 01, both dated September 5, 2002; as
applicable.

Note 4: Airbus Service Bulletins A330-27-3093 and A340-27-4099
refer to TRW Aeronautical Systems Service Bulletin 47147-27-10,
dated June 27, 2002, as the appropriate source of service
information for additional instructions for accomplishing the
modification of the ball nut of the THSA.

Previous/Concurrent Requirements

(h) Prior to or concurrently with accomplishment of the
requirements of paragraph (g)(2) of this AD, do all of the actions
specified in the Accomplishment Instructions of the applicable
Airbus service bulletins listed in Table 1 or 2 of this AD, as
applicable, in accordance with those service bulletins.

Note 5: Airbus Service Bulletin A330-27-3093, Revision 01, dated
September 5, 2002, specifies that the actions in Airbus Service
Bulletin A330-27-3052 must be accomplished previously or
concurrently. Airbus Service Bulletin A330-27-3052, Revision 03,
dated December 5, 2001, specifies that the actions in Airbus Service
Bulletins A330-27-3007, A330-27-3015, A330-27-3047, A330-27-3050,
and A330-55-3020 must be accomplished previously or concurrently.

Note 6: Airbus Service Bulletin A340-27-4099, Revision 01, dated
September 5, 2002, specifies that the actions in Airbus Service
Bulletin A340-27-4059 must be accomplished previously or
concurrently. Airbus Service Bulletin A340-27-4059, Revision 03,
dated December 5, 2001, specifies that the actions in Airbus Service
Bulletins A340-27-4007, A340-27-4025, A340-27-4054, A340-27-4057,
and A340-55-4021, must be accomplished previously or concurrently.

Table 1.--Previous/Concurrent Requirements for Model A330 Series Airplanes
----------------------------------------------------------------------------------------------------------------
Additional source
Airbus service bulletin Revision level Date Main action of service
information
----------------------------------------------------------------------------------------------------------------
A330-27-3007............. 01....................... September 18, 1996 Replace rudder Samm Avionique
servo controls Service Bulletin
with modified SC5300-27-24-01,
parts. dated April 15,
1994.
A330-27-3015............. Original................. June 7, 1995...... Modify the control Lucas Aerospace
valve detent and Service Bulletin
the jamming 47147-27-02,
protection device Revision 1, dated
on the THSA. January 31, 1996.
A330-27-3047............. 01....................... November 26, 1997. Replace hydraulic Lucas Aerospace
motors on the Service Bulletin
THSA with new 47147-27-04,
parts. Revision 1, dated
June 20, 1997.
A330-27-3050............. Original................. November 15, 1996. Replace mechanical Lucas Aerospace
input shaft for Service Bulletin
THSA with 47147-27-05,
modified part. dated November 8,
1996.
A330-27-3052............. 03....................... December 5, 2001.. Replace THSA with Lucas Aerospace
a modified THSA. Service Bulletin
47147-27-07,
dated May 4,
1998.
A330-55-3020............. 01....................... October 21, 1998.. Perform a general None.
visual inspection
of the THSA screw
jack fitting
assembly for
correct
installation of a
washer; and
correctly install
washer as
applicable.
----------------------------------------------------------------------------------------------------------------

Table 2.--Previous/Concurrent Requirements for Model A340 Series Airplanes
----------------------------------------------------------------------------------------------------------------
Additional source
Airbus service bulletin Revision level Date Main action of service
information
----------------------------------------------------------------------------------------------------------------
A340-27-4007............. Original................. April 7, 1994..... Replace hydraulic Lucas Aerospace
motors on the Service Bulletin
THSA with new 47147-27-01,
parts. dated May 4,
1998.
A340-27-4025............. Original................. June 7, 1995...... Modify the control Lucas Aerospace
valve detent and Service Bulletin
the jamming 47147-27-02,
protection device Revision 1, dated
on the THSA. January 31, 1996.
A340-27-4054............. 01....................... November 26, 1997. Replace hydraulic Lucas Aerospace
motors on the Service Bulletin
THSA with new 47147-27-04,
parts. Revision 1, dated
June 20, 1997.
A340-27-4057............. Original................. November 15, 1996. Replace mechanical Lucas Aerospace
input shaft for Service Bulletin
THSA with 47147-27-05,
modified part. dated November 8,
1996.
A340-27-4059............. 03....................... December 5, 2001.. Replace THSA with Lucas Aerospace
a modified THSA. Service Bulletin
47147-27-07,
dated May 4,
1998.
A340-55-4021............. 01....................... October 21, 1998.. Perform a general None.
visual inspection
of the THSA screw
jack fitting
assembly for
correct
installation of a
washer; and
correctly install
washer as
applicable.
----------------------------------------------------------------------------------------------------------------

Note 7: For the purposes of this AD, a general visual inspection
is: ``A visual examination of an interior or exterior area,
installation, or assembly to detect obvious damage, failure, or
irregularity. This level of inspection is made from within touching
distance unless otherwise specified. A mirror may be necessary to
ensure visual access to all surfaces in the inspection area. This
level

[[Page 16109]]

of inspection is made under normally available lighting conditions
such as daylight, hangar lighting, flashlight, or droplight and may
require removal or opening of access panels or doors. Stands,
ladders, or platforms may be required to gain proximity to the area
being checked.''

Actions Accomplished Previously

(i) Actions accomplished before the effective date of this AD in
accordance with previous revisions of the service information
referenced in this AD are acceptable for corresponding actions
required by this AD as specified in paragraphs (i)(1), (i)(2),
(i)(3), and (i)(4) of this AD.
(1) Inspections and corrective actions accomplished in
accordance with Airbus Service Bulletin A330-27-3088 (for Model A330
series airplanes) or A340-27-4093 (for Model A340-200 and -300
series airplanes), both Revision 03, both excluding Appendix 01,
both dated October 19, 2001; as applicable; are acceptable for
compliance with paragraph (c) of this AD.
(2) Inspections and corrective actions accomplished in
accordance with Airbus Service Bulletin A330-27-3102, Revision 02,
excluding Appendix 01, dated November 7, 2002, Revision 03,
excluding Appendix 01, dated June 20, 2003, or Revision 04, dated
December 8, 2003 (for Model A330 series airplanes); or A340-27-4107,
Revision 03, excluding Appendix 01, dated December 4, 2002 (for
Model A340-200 and -300 series airplanes); as applicable; are
acceptable for compliance with paragraph (e) of this AD.
(3) Modifications accomplished in accordance with Airbus Service
Bulletin A330-27-3085 (for Model A330 series airplanes) or A340-27-
4089 (for Model A340-313 series airplanes), both Revision 01, both
dated January 23, 2002; as applicable; are acceptable for compliance
with paragraph (g)(1) of this AD.
(4) Modifications accomplished in accordance with Airbus Service
Bulletin A330-27-3093 (for Model A330 series airplanes) or A340-27-
4099 (for Model A340-200 and -300 series airplanes), both dated June
27, 2002; as applicable; are acceptable for compliance with
paragraph (g)(2) of this AD.

No Reporting Required

(j) Where Airbus Service Bulletins A330-27-3088, Revision 04,
dated September 5, 2002; A340-27-4093, Revision 04, dated September
5, 2002; A330-27-3102, Revision 05, dated July 7, 2004; and A340-27-
4107, Revision 04, dated June 20, 2003; describe procedures for
completing a reporting sheet with inspection results, this AD does
not require that action.

Alternative Methods of Compliance

(k) In accordance with 14 CFR 39.19, the Manager, International
Branch, ANM-116, is authorized to approve alternative methods of
compliance for this AD.

Incorporation by Reference

(l) Unless otherwise specified in this AD, the actions shall be
done in accordance with Airbus All Operators Telex A330-27A3088,
dated April 5, 2001; Airbus All Operators Telex A340-27A4093, dated
April 5, 2001; or the Airbus service bulletins listed in Table 3 of
this AD; as applicable.

Table 3.--Airbus Service Bulletins Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
Service bulletin Revision Date
----------------------------------------------------------------------------------------------------------------
A330-27-3007........................ 01.............................. September 18, 1996.
A330-27-3015........................ Original........................ June 7, 1995.
A330-27-3047........................ 01.............................. November 26, 1997.
A330-27-3050........................ Original........................ November 15, 1996.
A330-27-3052........................ 03.............................. December 5, 2001.
A330-27-3085........................ 02.............................. September 5, 2002.
A330-27-3088, excluding Appendix 01. 04.............................. September 5, 2002.
A330-27-3093........................ 01.............................. September 5, 2002.
A330-27-3102, excluding Appendix 01. 05.............................. July 7, 2004.
A330-55-3020........................ 01.............................. October 21, 1998.
A340-27-4007........................ Original........................ April 7, 1994.
A340-27-4025........................ Original........................ June 7, 1995.
A340-27-4054........................ 01.............................. November 26, 1997.
A340-27-4057........................ Original........................ November 15, 1996.
A340-27-4059........................ 03.............................. December 5, 2001.
A340-27-4089........................ 02.............................. September 5, 2002.
A340-27-4093, excluding Appendix 01. 04.............................. September 5, 2002.
A340-27-4099........................ 01.............................. September 5, 2002.
A340-27-4107, excluding Appendix 01. 04.............................. June 20, 2003.
A340-55-4021........................ 01.............................. October 21, 1998.
----------------------------------------------------------------------------------------------------------------

Airbus Service Bulletin A330-27-3007, Revision 01, contains the
following effective pages:

------------------------------------------------------------------------
Revision level shown
Page No. on the page Date shown on the page
------------------------------------------------------------------------
1, 7.................. 01.................... September 18, 1996.
2-6................... Original.............. October 5, 1994.
------------------------------------------------------------------------

(1) The incorporation by reference of the Airbus Service
Bulletins in Table 3 of this AD is approved by the Director of the
Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part
51.
(2) The incorporation by reference of Airbus All Operators Telex
A330-27A3088, dated April 5, 2001; and Airbus All Operators Telex
A340-27A4093, dated April 5, 2001; was approved previously by the
Director of the Federal Register as of June 26, 2001 (66 FR 31143,
June 11, 2001).
(3) To get copies of this service information, go to Airbus, 1
Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France. To inspect
copies of this service information, go to the FAA, Transport
Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or
to the National Archives and Records Administration (NARA). For
information on the availability of this material at the 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>.

Note 8: The subject of this AD is addressed in French
airworthiness directives F-2002-414 R3, dated July 7, 2004, and
2002-415(B) R2, dated October 30, 2002.

Effective Date

(m) This amendment becomes effective on May 4, 2005.

Issued in Renton, Washington, on March 17, 2005.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-6111 Filed 3-29-05; 8:45 am]
BILLING CODE 4910-13-P

Airworthiness Directives; Airbus Model A330, A340-200, and A340-300 Series Airplanes

Applicability

Unsafe Condition

Required Actions

Compliance Time

Affected Aircraft

Federal Register Abstract

Document Text

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