
[Federal Register: October 1, 2010 (Volume 75, Number 190)]
[Proposed Rules]               
[Page 60659-60661]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr01oc10-20]                         


[[Page 60659]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2010-0955; Directorate Identifier 2010-NM-013-AD]
RIN 2120-AA64

 
Airworthiness Directives; 328 Support Services GmbH (Type 
Certificate Previously Held by AvCraft Aerospace GmbH; Fairchild 
Dornier GmbH; Dornier Luftfahrt GmbH) Model 328-100 and -300 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 maintenance on a 328-100 aeroplane, a crack was found on 
a trim tab fitting assembly. The cause of the cracking was 
identified as stress corrosion.
    This condition, if not corrected, could lead to in-flight 
failure of the tab fitting, possibly resulting in loss of control of 
the aeroplane.
* * * * *

    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 November 15, 
2010.

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.
    For service information identified in this proposed AD, contact 328 
Support Services GmbH, Global Support Center, P.O. Box 1252, D-82231 
Wessling, Federal Republic of Germany; telephone +49 8153 88111 6666; 
fax +49 8153 88111 6565; e-mail gsc.op@328support.de; Internet http://
www.328support.de. You may review copies of the referenced service 
information at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue, SW., Renton, Washington. For information on the availability of 
this material at the FAA, call 425-227-1221.

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: Tom Groves, Aerospace Engineer, 
International Branch, ANM-116, Transport Airplane Directorate, FAA, 
1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 
227-1503; 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-2010-0955; 
Directorate Identifier 2010-NM-013-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 have lengthened the 30-day comment period for proposed ADs that 
address MCAI originated by aviation authorities of other countries to 
provide adequate time for interested parties to submit comments. The 
comment period for these proposed ADs is now typically 45 days, which 
is consistent with the comment period for domestic transport ADs.
    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 2009-0266, dated December 17, 2009 (referred to 
after this as ``the MCAI''), to correct an unsafe condition for the 
specified products. The MCAI states:

    During maintenance on a 328-100 aeroplane, a crack was found on 
a trim tab fitting assembly. The cause of the cracking was 
identified as stress corrosion.
    This condition, if not corrected, could lead to in-flight 
failure of the tab fitting, possibly resulting in loss of control of 
the aeroplane.
    To address this unsafe condition, the TC [type certificate] 
holder has developed new aileron trim tab fittings and rudder spring 
tab fitting, using a material that is more resistant to stress 
corrosion. The improved material rudder spring tab fittings were 
introduced on the production line for the Model 328-300 and for 328-
100 aeroplanes with a s/n [serial number] higher than 3098.
    For the reasons described above, this AD requires the * * * 
replacement of [certain] aileron trim tab fittings and [certain] 
rudder spring tab fitting[s].

You may obtain further information by examining the MCAI in the AD 
docket.

Relevant Service Information

    328 Support Services GmbH has issued Service Bulletins SB-328-27-
488 (for Model 328-100 airplanes), and SB-328J-27-237 (for Model 328-
300 airplanes), both dated August 25, 2009. 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.

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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 33 products of U.S. registry. We also estimate that 
it would take about 6 work-hours per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $85 per 
work-hour. Required parts would cost about $2,252 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. operators to 
be $91,146, or $2,762 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, Incorporation by 
reference, 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:

328 Support Services GmbH (Type Certificate Previously Held by 
AvCraft Aerospace GmbH; Fairchild Dornier GmbH; Dornier Luftfahrt 
GmbH): Docket No. FAA-2010-0955; Directorate Identifier 2010-NM-013-
AD.

Comments Due Date

    (a) We must receive comments by November 15, 2010.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to 328 Support Services GmbH (Type 
Certificate previously held by AvCraft Aerospace GmbH; Fairchild 
Dornier GmbH; Dornier Luftfahrt GmbH) Model 328-100 and -300 
airplanes, certificated in any category, as specified in paragraphs 
(c)(1) and (c)(2) of this AD.
    (1) Model 328-100 airplanes, all serial numbers, with part 
number (P/N) 001B576A2101000 left-hand (LH) or P/N 001B576A2101003 
right-hand (RH) aileron trim tab fittings installed, or P/N 
001A554A1711000 rudder spring tab fitting installed.
    (2) Model 328-300 airplanes, all serial numbers, with P/N 
001B576A2101000 (LH) or P/N 001B576A2101003 (RH) aileron trim tab 
fittings installed.

Subject

    (d) Air Transport Association (ATA) of America Code 27: Flight 
controls.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    During maintenance on a 328-100 aeroplane, a crack was found on 
a trim tab fitting assembly. The cause of the cracking was 
identified as stress corrosion.
    This condition, if not corrected, could lead to in-flight 
failure of the tab fitting, possibly resulting in loss of control of 
the aeroplane.
* * * * *

Compliance

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

Actions

    (g) For Model 328-100 airplanes: Within 6 months after the 
effective date of this AD, replace the aileron trim tab fittings P/N 
001B576A2101000 (LH) and P/N 001B576A2101003 (RH) with P/N 
001B576A2101004 (LH) and P/N 001B576A2101007 (RH) respectively; and 
replace the rudder spring tab fitting P/N 001A554A1711000 with a P/N 
001A554A1711006; in accordance with the Accomplishment Instructions 
of 328 Support Services Service Bulletin SB-328-27-488, dated August 
25, 2009.
    (h) For Model 328-300 airplanes: Within 6 months after the 
effective date of this AD, replace the aileron trim tab fittings P/N 
001B576A2101000 (LH) and P/N 001B576A2101003 (RH) with P/N 
001B576A2101004 (LH) and P/N 001B576A2101007 (RH) respectively, in 
accordance with the Accomplishment Instructions of 328 Support 
Services Service Bulletin SB-328J-27-237, dated August 25, 2009.
    (i) After replacing the fittings as specified in paragraphs (g) 
and (h) of this AD, do not install P/N 001B576A2101000 (LH) or P/N 
001B576A2101003 (RH) aileron trim tab fittings, or P/N 
001A554A1711000 rudder spring tab fittings, on any airplane.

FAA AD Differences

    Note 1: This AD differs from the MCAI and/or service information 
as follows: No differences.

Other FAA AD Provisions

    (j) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International

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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: Tom 
Groves, Aerospace Engineer, International Branch, ANM-116, Transport 
Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 
98057-3356; telephone (425) 227-1503; fax (425) 227-1149. Before 
using any approved AMOC on any airplane to which the AMOC applies, 
notify your principal maintenance inspector (PMI) or principal 
avionics inspector (PAI), as appropriate, or lacking a principal 
inspector, your local Flight Standards District Office. The AMOC 
approval letter must specifically reference this AD.
    (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 (44 
U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has 
approved the information collection requirements and has assigned 
OMB Control Number 2120-0056.

Related Information

    (k) Refer to MCAI European Aviation Safety Agency (EASA) 
Airworthiness Directive 2009-0266, dated December 17, 2009; and 328 
Support Services Service Bulletins SB-328-27-488 and SB-328J-27-237, 
both dated August 25, 2009; for related information.

    Issued in Renton, Washington, on September 23, 2010.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2010-24716 Filed 9-30-10; 8:45 am]
BILLING CODE 4910-13-P

