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[Federal Register Volume 77, Number 186 (Tuesday, September 25, 2012)]
[Proposed Rules]
[Pages 58973-58975]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-23460]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-1015; Directorate Identifier 2007-SW-069-AD]
RIN 2120-AA64

Airworthiness Directives; Eurocopter France Helicopters

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 
Eurocopter France (Eurocopter) Model AS332C, AS332L, and AS332L1 
helicopters. This proposed AD is prompted by reports of electro-valve

[[Page 58974]]

power supply disruptions while a helicopter is on the ground, causing 
the landing gear to retract and the helicopter nose to drop. This 
results in damage to the forward section of the helicopter's bottom 
structure. This proposed AD would require modifying the main landing 
gear control panel (control panel) 33G, connector 100G, and wiring. It 
also would require tests to ensure that these modifications function 
correctly. We propose this AD to prevent an uncommanded landing gear 
retraction that would cause the helicopter nose to drop and hit the 
ground while the rotor blades are spinning.

DATES: We must receive comments on this proposed AD by November 26, 
2012.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your 
comments electronically.
     Fax: 202-493-2251.
     Mail: Send comments to the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.
     Hand Delivery: Deliver to the ``Mail'' address 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 economic 
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 service information identified in this proposed AD, contact 
American Eurocopter Corporation, 2701 N. Forum Drive, Grand Prairie, TX 
75052, telephone (972) 641-0000 or (800) 232-0323, fax (972) 641-3775, 
or at http://www.eurocopter.com/techpub. You may review a copy of the 
referenced service information at the FAA, Office of the Regional 
Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, 
Texas 76137.

FOR FURTHER INFORMATION CONTACT: George Schwab, Aviation Safety 
Engineer, FAA, Rotorcraft Directorate, Safety Management Group, 2601 
Meacham Blvd., Fort Worth, Texas, 76137; telephone: (817) 222-5114; 
fax: (817) 222-5961; email: george.schwab@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to participate in this rulemaking by submitting 
written comments, data, or views. We also invite comments relating to 
the economic, environmental, energy, or federalism impacts that might 
result from adopting the proposals in this document. The most helpful 
comments reference a specific portion of the proposal, explain the 
reason for any recommended change, and include supporting data. To 
ensure the docket does not contain duplicate comments, commenters 
should send only one copy of written comments, or if comments are filed 
electronically, commenters should submit only one time.
    We will file in the docket all comments that we receive, as well as 
a report summarizing each substantive public contact with FAA personnel 
concerning this proposed rulemaking. Before acting on this proposal, we 
will consider all comments we receive on or before the closing date for 
comments. We will consider comments filed after the comment period has 
closed if it is possible to do so without incurring expense or delay. 
We may change this proposal in light of the comments we receive.

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued AD No. 
2006-0152, dated May 30, 2006 (AD 2006-0152), to correct an unsafe 
condition for the Eurocopter Model AS 332 C, AS 332 C1, AS 332 L, and 
AS 332 L1 helicopters with a control panel 33G, part number (P/N) 
332A67-1623-00, -06, -0610, or -0651. EASA advises of electro-valve 
power supply disruptions, which caused the landing gear to retract and 
the helicopter to drop, resulting in damage to the forward section of 
the helicopter's bottom structure. AD 2006-0152 requires compliance 
with Eurocopter Alert Service Bulletin (ASB) No. 32.00.18, Revision 1, 
dated March 27, 2006, or later revisions. AD 2006-0152 supersedes 
Direction Generale de L'Aviation Civile France AD No. F-2005-100, dated 
June 22, 2005 (AD No. F-2005-100), which required compliance with ASB 
No. 32.00.18, any approved revision.

FAA's Determination

    These helicopter models have been approved by the aviation 
authority of France and are approved for operation in the United 
States. Pursuant to our bilateral agreement with France, EASA, its 
technical representative, has notified us of the unsafe condition 
described above. We are proposing this AD because we evaluated all 
known relevant information and determined that an unsafe condition 
exists and is likely to exist or develop on other products of these 
same type designs.

Related Service Information

    We reviewed Eurocopter ASB No. 32.00.18, Revision 2, dated July 12, 
2010, for Model AS332C, AS332C1, AS332L, and AS332L1 helicopters and 
military Model AS332B, AS332B1, AS332M, AS332M1, AS332F1 helicopters 
with the specified control panel 33G. That ASB states that electrical 
interferences on the solenoid valve power supply line have caused 
untimely retraction of the main landing gear, causing helicopters to 
sink, resulting in damage to the front section of the helicopter's 
bottom structure. The ASB describes procedures for modifying the main 
landing gear control tab on the control panel 33G, replacing the fixed 
connector on the control panel 33G, replacing the removable connector 
on the corresponding wiring, and testing the affected systems to ensure 
that these modifications function correctly. The ASB states that these 
actions are intended to prevent untimely power supply to the solenoid 
valve when the main landing gear control tab is on ``extended'' and to 
avoid main landing gear retraction. AD No. 2006-0152 classified 
portions of the ASB as mandatory.

Proposed AD Requirements

    This proposed AD would require, within 90 days, modifying the 
control panel 33G, connector 100G, and wiring, and determining that 
these modifications are functioning correctly by conducting specific 
tests. The proposed actions would be accomplished in accordance with 
the specified portions of the ASB No. 32.00.18, Revision 2, dated July 
12, 2010.

Differences Between This Proposed AD and the EASA AD

    This proposed AD differs from the EASA AD as follows:
     This proposed AD requires compliance within 90 days, while 
the EASA AD requires compliance within 3 months. The EASA AD also 
addresses

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spare parts, and this proposed AD does not address spare parts.
     The EASA AD requires a repeat of the tests for helicopters 
that have been modified in compliance with AD F-2005-100, and this 
proposed AD does not.
     The EASA AD also applies to the Model AS332C1 helicopter, 
and this proposed AD does not because this model does not have an FAA-
issued type certificate.

Costs of Compliance

    We estimate that this proposed AD would affect three helicopters of 
U.S. registry. We estimate the following costs to comply with this 
proposed AD:
    We estimate that modification of the control panel, connector, and 
wiring would take one work hour to complete at $85 per hour, and that 
parts would cost $293. Performing function tests would take about 4.5 
hours to complete, for a total labor cost of $383. Thus, we estimate a 
total cost per helicopter of $761, and a total cost of $2,283 for the 
fleet.
    We do not control warranty coverage. Accordingly, we have included 
all costs in our cost estimate.

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, 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);
    3. Will not affect intrastate aviation in Alaska to the extent that 
it justifies making a regulatory distinction; and
    4. 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 an economic 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 
Airworthiness Directive (AD):

Eurocopter France (Eurocopter): Docket No. FAA-2012-1015; 
Directorate Identifier 2007-SW-069-AD.

(a) Applicability

    This AD applies to Eurocopter Model AS332C, AS332L, and AS332L1 
helicopters not modified per modification (MOD) 0723817, MOD 
0725670, MOD 332P083218 or MOD 332A088381, with a main landing gear 
control panel (control panel) 33G, part number (P/N) 332A67-1623-00, 
-06, -0610, or -0651; certificated in any category.

 (b) Unsafe Condition

    This AD is defines the unsafe condition as an uncommanded 
landing gear retraction, which could cause the helicopter nose to 
drop and hit the ground while the rotor blades are spinning.

(c) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(d) Required Actions

    Within 90 days, modify the control panel 33G and connector 100G, 
route the 1GA5103E wiring, and perform the tests in accordance with 
the Accomplishment Instructions, Paragraphs 2.B 2.a. through 
2.B.3.d., and as depicted in Figures 1 and 2, of Eurocopter Alert 
Service Bulletin No 32.00.18, Revision 2, dated July 12, 2010.

(e) Alternative Methods of Compliance (AMOC)

    (1) The Manager, Rotorcraft Directorate, Safety Management 
Group, FAA, has the authority to approve AMOCs for this AD, if 
requested using the procedures found in 14 CFR 39.19. In accordance 
with 14 CFR 39.19, send your request to your principal inspector or 
local Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in the Related Information 
section of this AD.
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, we suggest that you 
notify your principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office or 
certificate holding district office before operating any aircraft 
complying with this AD through an AMOC.

(f) Additional Information

    (1) For service information identified in this proposed AD, 
contact American Eurocopter Corporation, 2701 N. Forum Drive, Grand 
Prairie, TX 75052, telephone (972) 641-0000 or (800) 232-0323, fax 
(972) 641-3775, or at http://www.eurocopter.com/techpub. You may 
review a copy of the referenced service information at the FAA, 
Office of the Regional Counsel, 2601 Meacham Blvd., Room 663, Fort 
Worth, Texas 76137.
    (2) The subject of this AD is addressed in the European Aviation 
Safety Agency AD No. 2006-0152, dated May 30, 2006.

 (g) Subject

    Joint Aircraft Service Component (JASC) Code: 3230, landing gear 
retract/extend system.

    Issued in Fort Worth, Texas, on September 14, 2012.
Lance T. Gant,
Acting Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 2012-23460 Filed 9-24-12; 8:45 am]
BILLING CODE 4910-13-P
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