Document ID: FAA-2008-0980-0001
Agency: faa
Document Type: Rule
Title: Airworthiness Directives; Airbus Model A330 Airplanes, and Model A340-200 and A340-300 Series Airplanes
Posted Date: 2008-09-17T04:00Z

[Federal Register: September 17, 2008 (Volume 73, Number 181)]
[Proposed Rules]               
[Page 53770-53773]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17se08-38]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0980; Directorate Identifier 2008-NM-008-AD]
RIN 2120-AA64

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

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

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to supersede an existing airworthiness 
directive (AD) that applies to certain Airbus Model A330, A340-200, and 
A340-300 series airplanes. The existing AD currently requires 
repetitive inspections of a certain bracket that attaches the flight 
deck instrument panel to the airplane structure; related investigative 
and corrective actions if necessary; and replacement of the existing 
bracket with a titanium-reinforced bracket, which ends the repetitive 
inspections in the existing AD. This proposed AD would add requirements 
only for airplanes on which the existing bracket was replaced with a 
titanium-reinforced bracket in accordance with the existing AD. The 
additional requirement is a one-time inspection to determine if certain 
fasteners are broken or cracked, and corrective actions if necessary. 
This proposed AD results from a report that incorrect torque values 
could damage the bracket. We are proposing this AD to prevent a cracked 
bracket. Failure of this bracket, combined with failure of the 
horizontal beam, could result in collapse of the left part of the 
flight deck instrument panel, and consequent reduced controllability of 
the airplane.

DATES: We must receive comments on this proposed AD by October 17, 
2008.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to http://
www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this AD, contact Airbus, 1 
Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://
www.regulations.gov; or in person at the Docket Management Facility 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this proposed AD, the regulatory 
evaluation, any comments received, and other information. The street 
address for the Docket Office (telephone 800-647-5527) is in the 
ADDRESSES section. Comments will be available in the AD docket shortly 
after receipt.

FOR FURTHER INFORMATION CONTACT: Vladimir Ulyanov, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
227-1138; fax (425) 227-1149.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2008-0980; 
Directorate Identifier

[[Page 53771]]

2008-NM-008-AD'' at the beginning of your comments. We specifically 
invite comments on the overall regulatory, economic, environmental, and 
energy aspects of this proposed AD. We will consider all comments 
received by the closing date and may amend this proposed AD because of 
those comments.
    We will post all comments we receive, without change, to http://
www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On December 21, 2006, we issued AD 2006-26-12, amendment 39-14870 
(72 FR 256, January 4, 2007), for certain Airbus Model A330, A340-200, 
and A340-300 series airplanes. That AD superseded AD 2005-06-08, 
amendment 39-14016 (70 FR 13345, March 21, 2005) and requires 
repetitive inspections of a certain bracket that attaches the flight 
deck instrument panel to the airplane structure; replacement of the 
bracket with a new, improved bracket; and related investigative and 
corrective actions if necessary. That AD further requires replacement 
of the existing bracket with a titanium-reinforced bracket, which would 
end the repetitive inspections. AD 2006-26-12 resulted from a report of 
cracking damage found on certain brackets that were replaced per the 
requirements of AD 2005-06-08. We issued AD 2006-26-12 to prevent a 
cracked bracket. Failure of this bracket, combined with failure of the 
horizontal beam, could result in collapse of the left part of the 
flight deck instrument panel, and consequent reduced controllability of 
the airplane.

Actions Since Existing AD Was Issued

    Since we issued AD 2006-26-12, we have received a report that 
incorrect torque values could damage the bracket. These incorrect 
torque values were included in Airbus Service Bulletins A330-25-3249 
and A340-25-4245, both dated May 3, 2005. We referred to those service 
bulletins in AD 2006-26-12 as the appropriate sources of service 
information for replacing the existing bracket with a titanium-
reinforced bracket. Airbus has now revised these service bulletins 
(both Revision 01, both dated July 10, 2007) to include the correct 
torque values.
    The European Aviation Safety Agency (EASA) mandated the service 
information and issued EASA airworthiness directives 2007-0281 and 
2007-0282, both dated November 6, 2007, to ensure the continued 
airworthiness of these airplanes in the European Union.

Relevant Service Information

    As stated above, Airbus has issued Mandatory Service Bulletins 
A330-25-3249 and A340-25-4245, both Revision 01, and both dated July 
10, 2007. The procedures in Revision 01 of the service bulletins are 
essentially the same as the procedures in the original issue. However, 
Revision 01 of the service bulletins specifies new procedures for 
airplanes on which the bracket has been replaced in accordance with the 
procedures specified in the original issue. The new procedures are 
removing the fasteners of the titanium-reinforced bracket and, if a 
fastener is broken, doing a detailed inspection for cracking of the 
horizontal beam. If any crack is found, the service bulletins specify 
the corrective action of contacting Airbus for repair procedures. If no 
crack is found, the service bulletins specify the corrective action of 
installing new fasteners on the bracket.

FAA's Determination and Requirements of the Proposed AD

    These airplanes are manufactured in France and are type 
certificated for operation in the United States under the provisions of 
section 21.29 of the Federal Aviation Regulations (14 CFR 21.29) and 
the applicable bilateral airworthiness agreement. Pursuant to this 
bilateral airworthiness agreement, the EASA has kept the FAA informed 
of the situation described above. We have examined the EASA's findings, 
evaluated all pertinent information, and determined that AD action is 
necessary for airplanes of this type design that are certificated for 
operation in the United States.
    This proposed AD would supersede AD 2006-26-12 and would retain the 
requirements of the existing AD. This proposed AD would also require 
accomplishing the actions specified in Airbus Mandatory Service 
Bulletins A330-25-3249 and A340-25-4245, both Revision 01, and both 
dated July 10, 2007, as discussed under ``Difference Between the 
Proposed AD and the EASA Airworthiness Directives.''

Difference Between the Proposed AD and the EASA Airworthiness 
Directives

    The EASA airworthiness directives specify contacting Airbus for 
instructions on how to repair certain conditions. This proposed AD 
requires repairing those conditions using a method that we or the EASA 
approve. In light of the type of repair that would be required to 
address the unsafe condition, and consistent with existing bilateral 
airworthiness agreements, we have determined that, for this proposed 
AD, a repair we or the EASA (or its delegated agent) approve would be 
acceptable for compliance with this proposed AD.

Costs of Compliance

    The following table provides the estimated costs for U.S. operators 
to comply with this proposed AD. This proposed AD would affect about 24 
Model A330 series airplanes of U.S. registry. There are currently no 
affected Model A340-200 and -300 series airplanes of U.S. registry. 
However, if one of these airplanes is imported and put on the U.S. 
Register in the future, these cost estimates would also apply to those 
airplanes.

                                                 Estimated Costs
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                                                Average labor                      Cost per
            Action               Work hours     rate per hour       Parts          airplane         Fleet cost
----------------------------------------------------------------------------------------------------------------
Inspections (required by AD                 1             $80              $0  $80, per          $1,920, per
 2006-26-12).                                                                   inspection        inspection
                                                                                cycle.            cycle.
Replacement and investigative               9              80             330  $1,050..........  $25,200.
 actions (required by AD 2006-
 26-12).
One-time inspection (new                    2              80               0  $160............  Up to $3,840.
 proposed action).
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[[Page 53772]]

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 proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD 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.
    For the reasons discussed above, I certify that the proposed 
regulation:
    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. 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 regulatory evaluation of the estimated costs to 
comply with this proposed AD and placed it in the AD docket. See the 
ADDRESSES section for a location to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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. The Federal Aviation Administration (FAA) amends Sec.  39.13 by 
removing amendment 39-14870 (72 FR 256, January 4, 2007) and adding the 
following new airworthiness directive (AD):

Airbus: Docket No. FAA-2008-0980; Directorate Identifier 2008-NM-
008-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by October 
17, 2008.

Affected ADs

    (b) This AD supersedes AD 2006-26-12.

Applicability

    (c) This AD applies to all Airbus Model A330 airplanes, and 
Model A340-200 and A340-300 series airplanes; certificated in any 
category; except those airplanes identified in paragraphs (c)(1), 
(c)(2) and (c)(3) of this AD.
    (1) Model A330 airplanes, and Model A340-200, and A340-300 
series airplanes on which Airbus Modification 53446 has been 
incorporated in production.
    (2) Model A330 airplanes on which Airbus Service Bulletin A330-
25-3249, Revision 01, dated July 10, 2007, has been embodied in 
service.
    (3) Model A340-200 and -300 series airplanes on which Airbus 
Service Bulletin A340-25-4245, Revision 01, dated July 10, 2007, has 
been embodied in service.

Unsafe Condition

    (d) This AD results from a report that incorrect torque values 
could damage a certain bracket that attaches the flight deck 
instrument panel to the airplane structure. We are issuing this AD 
to prevent a cracked bracket. Failure of this bracket, combined with 
failure of the horizontal beam, could result in collapse of the left 
part of the flight deck instrument panel, and consequent reduced 
controllability of 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.

Service Bulletin Reference

    (f) The term ``service bulletin,'' as used in this AD, means the 
Accomplishment Instructions of the service bulletins identified in 
paragraphs (f)(1), (f)(2), and (f)(3) of this AD, as applicable.
    (1) For the requirements of paragraphs (g), (h), and (i) of this 
AD: Airbus Service Bulletins A330-25-3227 and A340-25-4230, both 
Revision 01, both dated May 3, 2005. Accomplishment before February 
8, 2007 (the effective date of AD 2006-26-12) of Airbus Service 
Bulletins A330-25-3227 and A340-25-4230, both including Appendix 01, 
both dated June 17, 2004, as applicable, is an acceptable means of 
compliance for paragraphs (g), (h), and (i) of this AD.
    (2) For the requirements of paragraph (k) of this AD done before 
the effective date of this AD: Airbus Service Bulletins A330-25-3249 
and A340-25-4245, both dated May 3, 2005, as applicable.
    (3) For the requirements of paragraph (k) of this AD done after 
the effective date of this AD, and for the requirements of paragraph 
(l) of this AD: Airbus Mandatory Service Bulletins A330-25-3249 and 
A340-25-4245, both Revision 01, both dated July 10, 2007, as 
applicable.

Restatement of the Requirements of AD 2006-26-12

Initial Inspection

    (g) At the applicable time specified in paragraph (g)(1) or 
(g)(2) of this AD, perform a detailed inspection of the bracket 
having part number (P/N) F2511012920000, which attaches the flight 
deck instrument panel to airplane structure, in accordance with the 
applicable service bulletin.
    (1) For Model A330 series airplanes: Prior to the accumulation 
of 16,500 total flight cycles, or within 60 days after April 25, 
2005 (the effective date of AD 2005-06-08, amendment 39-14016, which 
was superseded by AD 2006-26-12), whichever is later.
    (2) For Model A340-200 and -300 series airplanes: Prior to the 
accumulation of 9,700 total flight cycles, or within 2,700 flight 
cycles after April 25, 2005, whichever is later.

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

No Cracking/Repetitive Inspections

    (h) If no crack is found during the initial inspection required 
by paragraph (g) of this AD: Repeat the inspection thereafter at the 
applicable interval specified in paragraph (h)(1) or (h)(2) of this 
AD, until the replacement specified in paragraph (k) of this AD has 
been accomplished.
    (1) For Model A330 series airplanes: Intervals not to exceed 
13,800 flight cycles.
    (2) For Model A340-200 and -300 series airplanes: Intervals not 
to exceed 7,000 flight cycles.

Crack Found/Replacement and Repetitive Inspections

    (i) If any crack is found during any inspection required by 
paragraph (g) or (h) of this AD: Do the actions in paragraphs (i)(1) 
and (i)(2) of this AD, except as provided by paragraph (j) of this 
AD, until accomplishment of the replacement required by paragraph 
(k) of this AD.
    (1) Before further flight: Replace the cracked bracket with a 
new, improved bracket having P/N F2511012920095, in accordance with 
the service bulletin.
    (2) Repeat the inspection of the replaced bracket as required by 
paragraph (g) of this AD, at the time specified in paragraph 
(i)(2)(i) or (i)(2)(ii) of this AD. Then, do repetitive inspections 
or replace the bracket as

[[Page 53773]]

specified in paragraph (h) or (i) of this AD, as applicable.
    (i) For Model A330 series airplanes: Within 16,500 flight cycles 
after replacing the bracket.
    (ii) For Model A340-200 and -300 series airplanes: Within 9,700 
flight cycles after replacing the bracket.
    (j) If both flanges of a bracket are found broken during any 
inspection required by this AD: Before further flight, replace the 
bracket as specified in paragraph (i) of this AD and perform any 
applicable related investigative and corrective actions (which may 
include inspections for damage to surrounding structure caused by 
the broken bracket, and corrective actions for any damage that is 
found), in accordance with a method approved by the Manager, 
International Branch, ANM-116, Transport Airplane Directorate, FAA; 
or the European Aviation Safety Agency (EASA) (or its delegated 
agent).

Replacement of Brackets/Investigative and Corrective Actions

    (k) Except as required by paragraph (i)(1) of this AD: Within 72 
months after February 8, 2007 (the effective date of AD 2006-26-12), 
replace existing brackets having P/N F2511012920000 or P/N 
F2511012920095 with titanium-reinforced brackets having P/N 
F2511305220096; and perform any related investigative and corrective 
actions (which may include detailed inspections for cracking of the 
bracket or damage to surrounding structure caused by a broken 
bracket, and applicable corrective actions for any damage that is 
found); in accordance with the applicable service bulletin. If any 
crack is found, before further flight, repair in accordance with the 
applicable service bulletin. Replacement of the affected bracket 
with a titanium-reinforced bracket having P/N F2511305220096 ends 
the repetitive inspections required by paragraph (h) or (i) of this 
AD. Although the service bulletins specify to submit certain 
information to the manufacturer, this AD does not include that 
requirement.

New Requirements of This AD

One-Time Inspection

    (l) For airplanes on which the actions required by paragraph (k) 
of this AD have been accomplished before the effective date of this 
AD: At the applicable time in paragraph (l)(1) or (l)(2) of this AD, 
remove the fasteners of the titanium-reinforced bracket and, if a 
fastener is broken, do a detailed inspection for cracking of the 
horizontal beam. Do all applicable corrective actions before further 
flight. Do all actions in accordance with the applicable service 
bulletin. Where the applicable service bulletin specifies to contact 
Airbus, before further flight, repair in accordance with a method 
approved by the Manager, International Branch, ANM-116, Transport 
Airplane Directorate, FAA; or the EASA (or its delegated agent).
    (1) For Model A330 series airplanes: Prior to the accumulation 
of 16,500 total flight cycles, or within 20 months after the 
effective date of this AD, whichever occurs first.
    (2) For Model A340-200 and -300 series airplanes: Prior to the 
accumulation of 12,400 total flight cycles, or within 20 months 
after the effective date of this AD, whichever occurs first.

Alternative Methods of Compliance (AMOCs)

    (m)(1) The Manager, International Branch, ANM-116, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. Send information to ATTN: Vladimir 
Ulyanov, Aerospace Engineer, International Branch, ANM-116, 
Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, 
Washington 98057-3356; telephone (425) 227-1138; fax (425) 227-1149. 
Before using any approved AMOC on any airplane to which the AMOC 
applies, notify your appropriate principal inspector (PI) in the FAA 
Flight Standards District Office (FSDO), or lacking a PI, your local 
FSDO.
    (2) AMOCs approved previously in accordance with AD 2006-26-12 
are approved as AMOCs for the corresponding provisions of this AD.

Related Information

    (n) EASA airworthiness directives 2007-0281 and 2007-0282, both 
dated November 6, 2007, also address the subject of this AD.

    Issued in Renton, Washington, on September 9, 2008.
Michael J. Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E8-21727 Filed 9-16-08; 8:45 am]

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