AD 2014-10-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus Helicopters | AS332L1 | Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held By Eurocopter France) Helicopters |
| aircraft | Airbus Helicopters | EC225LP | Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held By Eurocopter France) Helicopters |
Unsafe Condition
Power loss to the multi-purpose air intake (MPAI) could open the engine air intakes, leading to engine ice ingestion during flight in icing conditions, which could result in complete loss of engine thrust and possible loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Relocate the power supply circuit breaker source of one engine's MPAI to an electrical bus that cannot be shut off in the event of battery-powered emergency flight. Perform a functional test of each MPAI after relocating the MPAI power supply circuit breaker.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before any flight into known icing conditions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Helicopters Model AS332L1, serial number 2774, and Model EC225LP helicopters with serial numbers 2600, 2623, 2645, 2656, 2659, 2663, 2666, 2670, 2673, 2685, 2691, 2692, 2693, 2702, 2715, 2716, 2721, 2725, 2739, 2744, 2747, 2753, 2756, 2759, 2767, 2779, and 2794.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS332L1 and Model EC225LP helicopters. This AD requires relocating the power supply circuit breaker source of one engine's multi-purpose air intake (MPAI). This AD is prompted by a report that power loss to the MPAI could open the engine air intakes, which could result in engine ice ingestion during flight in icing conditions. These actions are intended to prevent ice ingestion by both engines, which could result in complete loss of engine thrust, and possible loss of control of the helicopter.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 79, Number 101 (Tuesday, May 27, 2014)]
[Rules and Regulations]
[Pages 30015-30017]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2014-11528]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2014-0306; Directorate Identifier 2013-SW-046-AD;
Amendment 39-17850; AD 2014-10-03]
RIN 2120-AA64
Airworthiness Directives; Airbus Helicopters (Type Certificate
Previously Held By Eurocopter France) Helicopters
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Airbus Helicopters Model AS332L1 and Model EC225LP helicopters. This AD
requires relocating the power supply circuit breaker source of one
engine's multi-purpose air intake (MPAI). This AD is prompted by a
report that power loss to the MPAI could open the engine air intakes,
which could result in engine ice ingestion during flight in icing
conditions. These actions are intended to prevent ice ingestion by both
engines, which could result in complete loss of engine thrust, and
possible loss of control of the helicopter.
DATES: This AD becomes effective June 11, 2014.
The Director of the Federal Register approved the incorporation by
reference of certain documents listed in this AD as of June 11, 2014.
We must receive comments on this AD by July 28, 2014.
ADDRESSES: You may send comments by any of the following methods:
<bullet> Federal eRulemaking Docket: Go to <a href="http://www.regulations.gov">http://www.regulations.gov</a>. Follow the online instructions for sending your
comments electronically.
<bullet> Fax: 202-493-2251.
<bullet> 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.
<bullet> 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 <a href="http://www.regulations.gov">http://www.regulations.gov</a> 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 AD, the European Aviation Safety
Agency (EASA) AD, any incorporated by reference service information,
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 AD, contact Airbus
Helicopters, Inc., 2701 N. Forum Drive, Grand Prairie, TX 75052;
telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or at
<a href="http://www.airbushelicopters.com/techpub">http://www.airbushelicopters.com/techpub</a>. You may review 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
[[Page 30016]]
Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 2601
Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email
<a href="/cdn-cgi/l/email-protection#3d5a58524f5a58134e5e554a5c5f7d5b5c5c135a524b"><span class="__cf_email__" data-cfemail="6b0c0e04190c0e451808031c0a092b0d0a0a450c041d">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not provide you with notice and an opportunity to
provide your comments prior to it becoming effective. However, 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 resulted
from adopting this AD. The most helpful comments reference a specific
portion of the AD, 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 them 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 rulemaking during the
comment period. We will consider all the comments we receive and may
conduct additional rulemaking based on those comments.
Discussion
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD No. 2013-0173, dated August 1, 2013,
to correct an unsafe condition for certain serial-numbered Eurocopter
France (now Airbus Helicopters) Model AS 332 L1 and Model EC 225 LP
helicopters. EASA advises that after a power generation failure, some
helicopters equipped with electrical MPAIs would lose electrical power
to the engine electro-valves that control inflation of the MPAI seals
that close the engine air intakes. This power supply loss results in
deflation or non-inflation of the MPAI seals on both engine air
intakes. During flight in icing conditions, this condition could result
in ice ingestion by the engines and a dual engine flame-out. To correct
this unsafe condition, EASA AD No. 2013-0173 requires accomplishing
Eurocopter modification (MOD) 332P083736.05 for Model AS 332 L1
helicopters, and MOD 332P083736.01 or MOD 332P083736.02, depending on
the helicopter serial number, for Model EC225 LP helicopters. These
MODs describe procedures for relocating the power supply circuit
breaker of one engine's MPAI to an electrical bus that cannot be shut
off in the event of battery powered emergency flight.
FAA's Determination
These helicopters 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 in
the EASA AD. We are issuing this AD because we evaluated all
information provided by EASA and determined the unsafe condition exists
and is likely to exist or develop on other helicopters of these same
type designs.
Related Service Information
Eurocopter issued Alert Service Bulletin (ASB) No. AS332-30.00.74
for Model AS332L1 helicopters and ASB No. EC225-30A032 for Model
EC225LP helicopters, both Revision 0 and dated July 31, 2013. ASB
AS332-30.00.74 contains the procedures for Eurocopter MOD
332P083736.05, and ASB EC225-30A032 contains the procedures for
Eurocopter MOD 332P083736.01 and MOD 332P083736.02. Each ASB specifies
relocating one of the two electric MPAI power supply circuit breakers
to a bus bar that cannot lose power during emergency flight under
battery power only.
AD Requirements
Before flying into known icing conditions, this AD requires
complying with the manufacturer's service information to relocate an
engine MPAI power supply circuit breaker. This AD also requires
performing a functional test of each MPAI after relocating the MPAI
power supply circuit breaker.
Differences Between This AD and the EASA AD
The EASA AD requires compliance within 110 flight hours. This AD
requires compliance before any flight into known icing conditions, as
the unsafe condition does not exist unless icing conditions are
encountered concurrently with a dual generator or dual transformer-
rectifier unit failure.
Costs of Compliance
There are no costs of compliance with this AD because there are no
helicopters affected by this AD on the U.S. Registry.
FAA's Justification and Determination of the Effective Date
There are no helicopters affected by this AD on the U.S. Registry.
Therefore, we believe it is unlikely that we will receive any adverse
comments or useful information about this AD from U.S. Operators.
Since an unsafe condition exists that requires the immediate
adoption of this AD, we determined that notice and opportunity for
public comment before issuing this AD are unnecessary because there are
none of these products on the U.S. Registry and that good cause exists
for making this amendment effective in less than 30 days.
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 AD will not have federalism implications
under Executive Order 13132. This AD 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.
For the reasons discussed, I certify that this AD:
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);
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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
[[Page 30017]]
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 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. The FAA amends Sec. 39.13 by adding the following new airworthiness
directive (AD):
2014-10-03 Airbus Helicopters (Type Certificate previously held by
Eurocopter France): Amendment 39-17850; Docket No. FAA-2014-0306;
Directorate Identifier 2013-SW-046-AD.
(a) Applicability
This AD applies to Model AS332L1 helicopters, serial number (S/
N) 2774, and Model EC225LP helicopters, S/N 2600, 2623, 2645, 2656,
2659, 2663, 2666, 2670, 2673, 2685, 2691, 2692, 2693, 2702, 2715,
2716, 2721, 2725, 2739, 2744, 2747, 2753, 2756, 2759, 2767, 2779,
and 2794, certificated in any category.
(b) Unsafe Condition
This AD defines the unsafe condition as engine ice ingestion
during flight, which could result in complete loss of engine thrust
and possible loss of control of the helicopter.
(c) Effective Date
This AD becomes effective June 11, 2014.
(d) 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.
(e) Required Actions
Before flight into known icing conditions:
(1) For Model AS332L1 helicopter, S/N 2774, relocate the engine
1 Multi-Purpose Air Intake (MPAI) power supply circuit breaker as
described in the Accomplishment Instructions, paragraph 3.B.2., and
Figures 1, 2, and 3 of Eurocopter Alert Service Bulletin (ASB) No.
AS332-30.00.74, Revision 0, dated July 31, 2013.
(2) For Model EC225LP helicopters, S/N 2600, 2623, 2645, 2656,
2659, 2663, 2666, 2670, 2673, and 2693, relocate the engine 2 MPAI
power supply circuit breaker as described in the Accomplishment
Instructions, paragraph 3.B.2.a., and Figures 1 and 2 of Eurocopter
ASB No. EC225-30A032, Revision 0, dated July 31, 2013.
(3) For Model EC225LP helicopters, S/N 2685, 2691, 2692, 2702,
2715, 2716, 2721, 2725, 2739, 2744, 2747, 2753, 2756, 2759, 2767,
2779, and 2794, relocate the engine 2 MPAI power supply circuit
breaker as described in the Accomplishment Instructions, paragraph
3.B.2.b., and Figures 1 and 3 of Eurocopter ASB No. EC225-30A032.
(4) For all model helicopters, perform a functional test of each
MPAI after relocating the MPAI power supply circuit breaker.
(f) Special Flight Permits
Special flight permits are prohibited for flights into known
icing conditions.
(g) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Safety Management Group, FAA, may approve AMOCs
for this AD. Send your proposal to: George Schwab, Aviation Safety
Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 2601
Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110;
email <a href="/cdn-cgi/l/email-protection#167173796471733865757e6177745670777738717960"><span class="__cf_email__" data-cfemail="e582808a978280cb96868d928487a5838484cb828a93">[email protected]</span></a>.
(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.
(h) Additional Information
The subject of this AD is addressed in European Aviation Safety
Agency (EASA) AD No. 2013-0173, dated August 1, 2013. You may view
the EASA AD on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> in Docket
No. FAA-2014-0306.
(i) Subject
Joint Aircraft Service Component (JASC) Code: 3097: Ice/Rain
Protection System Wiring.
(j) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Eurocopter Alert Service Bulletin No. AS332-30.00.74,
Revision 0, dated July 31, 2013.
(ii) Eurocopter Alert Service Bulletin No. EC225-30A032,
Revision 0, dated July 31, 2013.
(3) For Eurocopter service information identified in this AD,
contact Airbus Helicopters, Inc., 2701 N. Forum Drive, Grand
Prairie, TX 75052; telephone (972) 641-0000 or (800) 232-0323; fax
(972) 641-3775; or at <a href="http://www.airbushelicopters.com/techpub">http://www.airbushelicopters.com/techpub</a>.
(4) You may view this service information at FAA, Office of the
Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663,
Fort Worth, Texas 76137. For information on the availability of this
material at the FAA, call (817) 222-5110.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call (202) 741-6030, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Fort Worth, Texas, on May 6, 2014.
Kim Smith,
Directorate Manager, Rotorcraft Directorate, Aircraft Certification
Service.
[FR Doc. 2014-11528 Filed 5-23-14; 8:45 am]
BILLING CODE 4910-13-P
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