
[Federal Register: June 24, 2008 (Volume 73, Number 122)]
[Proposed Rules]               
[Page 35595-35596]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr24jn08-14]                         


[[Page 35595]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0672; Directorate Identifier 2008-NM-032-AD]
RIN 2120-AA64

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

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for the 
products listed above. This proposed AD results from mandatory 
continuing airworthiness information (MCAI) originated by an aviation 
authority of another country to identify and correct an unsafe 
condition on an aviation product. The MCAI describes the unsafe 
condition as:

    During manufacturing of A330/A340 aircraft framework, cracks 
have been found on Frame (FR) 12, left (LH) and right (RH) sides. It 
has been confirmed that a defect of the FR12 forming tool press is 
the root cause of the cracks.
    If undetected such damage could affect, after propagation, the 
structural integrity of the aircraft.
* * * * *
The proposed AD would require actions that are intended to address the 
unsafe condition described in the MCAI.

DATES: We must receive comments on this proposed AD by July 24, 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 W12-40, 1200 New 
Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday 
through Friday, except Federal holidays.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://
www.regulations.gov; or in person at the Docket Operations office 
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 Operations 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-2008-0672; 
Directorate Identifier 2008-NM-032-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 based on 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

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
Airworthiness Directive 2007-0302, dated December 14, 2007 (referred to 
after this as ``the MCAI''), to correct an unsafe condition for the 
specified products. The MCAI states:

    During manufacturing of A330/A340 aircraft framework, cracks 
have been found on Frame (FR) 12, left (LH) and right (RH) sides. It 
has been confirmed that a defect of the FR12 forming tool press is 
the root cause of the cracks.
    If undetected such damage could affect, after propagation, the 
structural integrity of the aircraft.
    In order to permit an early detection and repair of cracks on 
FR12, LH and RH sides, this Airworthiness Directive (AD) mandates a 
one time High Frequency Eddy Current (HFEC) inspection of FR12.

Corrective actions include, for certain findings, contacting Airbus for 
repair instructions and doing the repair; repairing cracking (i.e., 
installing a new splice); and applying new protective coatings and 
corrosion inhibitors. You may obtain further information by examining 
the MCAI in the AD docket.

Relevant Service Information

    Airbus has issued Service Bulletins A330-53-3174 and A340-53-4177, 
both dated October 10, 2007. The actions described in this service 
information are intended to correct the unsafe condition identified in 
the MCAI.

FAA's Determination and Requirements of This Proposed AD

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with the State of Design Authority, we have 
been notified of the unsafe condition described in the MCAI and service 
information referenced above. We are proposing this AD because we 
evaluated all pertinent information and determined an unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

Differences Between This AD and the MCAI or Service Information

    We have reviewed the MCAI and related service information and, in 
general, agree with their substance. But we might have found it 
necessary to use different words from those in the MCAI to ensure the 
AD is clear for U.S. operators and is enforceable. In making these 
changes, we do not intend to differ substantively from the information 
provided in the MCAI and related service information.
    We might also have proposed different actions in this AD from those 
in the MCAI in order to follow FAA policies. Any such differences are 
highlighted in a Note within the proposed AD.

Costs of Compliance

    Based on the service information, we estimate that this proposed AD 
would affect about 20 products of U.S. registry. We also estimate that 
it would take about 3 work-hours per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $80 per 
work-hour. Required parts would cost about $0 per product. Where the 
service information lists required parts costs that are covered under 
warranty, we have assumed that there will be no charge for these costs. 
As we do not control warranty coverage for affected parties, some 
parties may incur costs higher than estimated here. Based on these 
figures, we estimate the cost of the proposed AD on U.S.

[[Page 35596]]

operators to be $4,800, or $240 per product.

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 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 this 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.

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 FAA amends Sec.  39.13 by adding the following new AD:

Airbus: Docket No. FAA-2008-0672; Directorate Identifier 2008-NM-
032-AD.

Comments Due Date

    (a) We must receive comments by July 24, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Airbus Model A330-200, A330-300, and 
A340-300 series airplanes; certificated in any category; all 
certified models, all manufacturing serial numbers (MSN) from MSN 
0489 through 0722 inclusive, and MSN 0725, 0726, 0728, 0730, 0732, 
and 0734.

Subject

    (d) Air Transport Association (ATA) of America Code 53: 
Fuselage.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:

    During manufacturing of A330/A340 aircraft framework, cracks 
have been found on Frame (FR) 12, left (LH) and right (RH) sides. It 
has been confirmed that a defect of the FR12 forming tool press is 
the root cause of the cracks.
    If undetected such damage could affect, after propagation, the 
structural integrity of the aircraft.
    In order to permit an early detection and repair of cracks on 
FR12, LH and RH sides, this Airworthiness Directive (AD) mandates a 
one time High Frequency Eddy Current (HFEC) inspection of FR12.

Corrective actions include, for certain findings, contacting Airbus 
for repair instructions and doing the repair; repairing cracking 
(i.e., installing a new splice); and applying new protective 
coatings and corrosion inhibitors.

Actions and Compliance

    (f) Unless already done, do the following actions.
    (1) Prior to the accumulation of 19,500 total flight cycles or 
within 3 months after the effective date of this AD, whichever 
occurs later: Perform a HFEC inspection at the LH (left-hand) and RH 
(right-hand) sides of frame 12, in accordance with the instructions 
defined in Airbus Service Bulletin A330-53-3174 or A340-53-4177, 
both dated October 10, 2007, as applicable. If no cracking is found, 
no further action is required by this AD. Except as required by 
paragraph (f)(2) of this AD, if any cracking is found, before 
further flight, do the applicable corrective actions in accordance 
with the instructions of Airbus Service Bulletin A330-53-3174 or 
A340-53-4177, as applicable.
    (2) If any cracking is found that exceeds the limits specified 
in Airbus Service Bulletin A330-53-3174 or A340-53-4177, both dated 
October 10, 2007, as applicable; or if any cracking is found during 
any HFEC inspection of the cut-out area; before further flight, 
contact Airbus for repair instructions and do the repair.

FAA AD Differences

    Note: This AD differs from the MCAI and/or service information 
as follows: No difference.

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Branch, ANM-116, Transport Airplane Directorate, 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) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.
    (3) Reporting Requirements: For any reporting requirement in 
this AD, under the provisions of the Paperwork Reduction Act, the 
Office of Management and Budget (OMB) has approved the information 
collection requirements and has assigned OMB Control Number 2120-
0056.

Related Information

    (h) Refer to European Aviation Safety Agency (EASA) 
Airworthiness Directive 2007-0302, dated December 14, 2007, and 
Airbus Service Bulletins A330-53-3174 and A340-53-4177, both dated 
October 10, 2007, for related information.

    Issued in Renton, Washington, on June 17, 2008.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E8-14186 Filed 6-23-08; 8:45 am]

BILLING CODE 4910-13-P
