[Federal Register Volume 77, Number 76 (Thursday, April 19, 2012)]
[Rules and Regulations]
[Pages 23380-23382]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-8584]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-0330; Directorate Identifier 2008-NE-43-AD;
Amendment 39-17015; AD 2012-07-09]
RIN 2120-AA64
Airworthiness Directives; Turbomeca S.A. Turboshaft Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: We are superseding an existing airworthiness directive (AD)
for Turbomeca S.A. Arrius 2F turboshaft engines with P3 air pipe (first
section) part number (P/N) 0 319 71 918 0, installed. That AD currently
requires inspections of the P3 air pipe (first section) and right-hand
(RH) rear half-wall for proper clearance and readjustment of the pipe
if necessary. This new AD requires the same inspections for installed
engines, eliminates readjusting of the P3 air pipe (first section),
requires replacement of the RH rear half-wall under certain conditions,
and adds an optional terminating action. This AD was prompted by
Turbomeca determining that the clearance between the P3 air pipe (first
section) and the RH rear half-wall might change during installation of
the engine on the helicopter. We are issuing this AD to prevent an
uncommanded power loss to flight idle, which could result in an
emergency autorotation landing or accident.
DATES: This AD is effective May 24, 2012.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of May 24, 2012.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in the AD as of August
19, 2009 (74 FR 34221, July 15, 2009).
ADDRESSES: For service information identified in this AD, contact
[[Page 23381]]
Turbomeca, 40220 Tarnos, France; phone: 33 (0)5 59 74 40 00; telex 570
042; fax 33 (0)5 59 74 45 15. You may review copies of the referenced
service information at the FAA, Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA. For information on the
availability of this material at the FAA, call 781-238-7125.
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 AD, the regulatory evaluation,
any comments received, and other information. The address for the
Docket Office (phone: 800-647-5527) is Document Management Facility,
U.S. Department of Transportation, Docket Operations, M-30, West
Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE.,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Mark Riley, Aerospace Engineer, Engine
Certification Office, FAA, Engine & Propeller Directorate, 12 New
England Executive Park, Burlington, MA 01803; phone: 781-238-7758; fax:
781-238-7199; email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2009-14-11, Amendment 39-15961 (74 FR 34221,
July 15, 2009). That AD applies to the specified products. The NPRM
published in the Federal Register on December 13, 2011 (76 FR 77446).
That NPRM proposed to continue to require inspections of the P3 air
pipe (first section) and right-hand (RH) rear half-wall for proper
clearance. That NPRM also proposed to require eliminating readjusting
of the P3 air pipe (first section), replacing the RH rear half-wall
under certain conditions, and adding an optional terminating action.
Service Bulletin Reference
In AD 2009-14-11 (74 FR 34221, July 15, 2009), ``Version A'' was
inadvertently omitted from the reference to Turbomeca Mandatory Service
Bulletin No. 319 75 4810, dated May 14, 2008. In this AD, the service
bulletin reference reads correctly as ``Turbomeca Mandatory Service
Bulletin No. 319 75 4810, Version A, dated May 14, 2008.''
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (76 FR 77446, December 13,
2011).
Credit for Previous Action Added
Since we issued the NPRM (76 FR 77446, December 13, 2011) the
European Aviation Safety Agency (EASA) superseded AD 2011-0182, dated
September 22, 2011, to include a credit for inspections done using
Turbomeca Mandatory Service Bulletin (MSB) No. 319 75 4810, Version A,
dated May 14, 2008. We added a paragraph for credit for previous
action, which states that inspections performed on an installed engine
before the effective date of this AD using Turbomeca MSB No. 319 75
4810, Version A, dated May 14, 2008, satisfies the inspection
requirements in paragraphs (e)(1)(i) and (e)(1)(ii) of this AD. We also
changed the EASA AD reference to EASA AD 2011-0182R1, dated February 3,
2012.
Conclusion
We reviewed the relevant data and determined that air safety and
the public interest require adopting the AD with the changes described
previously.
Costs of Compliance
We estimate that this AD will affect about 120 Arrius 2F turboshaft
engines installed on helicopters of U.S. registry. We also estimate
that it will take about 2 work-hours per engine to comply with this AD.
The average labor rate is $85 per work-hour. Required parts will cost
about $2,565 per engine. Based on these figures, we estimate the cost
of the AD on U.S. operators to be $328,200. Our cost estimate is
exclusive of possible warranty coverage.
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 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 above, 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, 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.
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 removing airworthiness directive (AD)
2009-14-11, Amendment 39-15961 (74 FR 34221, July 15, 2009), and adding
the following new AD:
2012-07-09 Turbomeca S.A: Amendment 39-17015; Docket No. FAA-2009-
0330; Directorate Identifier 2008-NE-43-AD.
(a) Effective Date
This airworthiness directive (AD) is effective May 24, 2012.
(b) Affected ADs
This AD supersedes AD 2009-14-11, Amendment 39-15961 (74 FR
34221, July 15, 2009).
(c) Applicability
This AD applies to Turbomeca S.A. Arrius 2F turboshaft engines
with right-hand (RH) rear half-wall, part number (P/N) 0319 99 824
0, installed.
(d) Unsafe Condition
The P3 air pipe (first section) and the RH rear half-wall could
rub each other. Rubbing
[[Page 23382]]
between the pipe and the RH rear half-wall may lead to rupture of
the P3 air pipe (first section), which could cause an uncommanded
power loss to flight idle. We are issuing this AD to prevent an
uncommanded power loss to flight idle, which could result in an
emergency autorotation landing or accident.
(e) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(1) For installed engines, within 100 engine hours (EH) after
the effective date of this AD:
(i) Inspect the clearance between the P3 air pipe (first
section) and the RH rear half-wall for sufficient clearance (0.5 mm
or more).
(ii) Use paragraph 2.B.(1) of Turbomeca Mandatory Service
Bulletin (MSB) No. 319 75 4810, Version B, dated January 25, 2011 to
do the inspection.
(2) Thereafter, repeat the inspections in paragraphs (e)(1)(i)
through (e)(1)(ii) of this AD as follows:
(i) At every installation of a RH rear half-wall P/N 0 319 99
824 0 on an installed engine, and
(ii) After every installation or reinstallation of an engine
with a RH rear half-wall P/N 0 319 99 824 0 installed.
(3) If the P3 air pipe (first section) or the RH rear half-wall
P/N 0 319 99 824 0 is found damaged, then before further flight,
replace the damaged part(s) with parts eligible for installation.
(4) If the P3 air pipe (first section) and the RH rear half-wall
P/N 0 319 99 824 0 are found contacting each other but are not
damaged, replace the RH rear half-wall with a RH rear half-wall
eligible for installation.
(5) If both the P3 air pipe (first section) and the RH rear
half-wall are found not damaged during the inspections specified in
paragraph (e)(1) or (e)(2) of this AD, and the clearance between
them is less than 0.5 mm, but they are not contacting each other,
then repeat the inspection in paragraphs (e)(1)(i) and (e)(1)(ii) of
this AD within every 100 EH.
(6) Installation of RH rear half-wall, P/N 0 319 99 008 0, is
terminating action to the inspections required by paragraphs (e)(1),
(e)(2), and (e)(5) of this AD.
(7) Once a RH rear half-wall, P/N 0 319 99 008 0, is installed
on an engine, do not install a RH rear half-wall, P/N 0 319 99 824
0, on that engine.
(f) Definition
For the purpose of this AD, parts eligible for installation is
defined as:
(1) An undamaged P3 air pipe (first section).
(2) An undamaged RH rear half-wall P/N 0 319 99 824 0.
(3) A new design RH rear half-wall P/N 0 319 99 008 0.
(g) Credit for Previous Action
An inspection performed on an installed engine before the
effective date of this AD using Turbomeca MSB No. 319 75 4810,
Version A, dated May 14, 2008, satisfies the inspection requirement
in paragraphs (e)(1)(i) and (e)(1)(ii) of this AD.
(h) Alternative Methods of Compliance (AMOCs)
The Manager, Engine Certification Office, may approve
alternative methods of compliance for this AD. Use the procedures
found in 14 CFR 39.19 to make your request.
(i) Related Information
(1) For more information about this AD, contact Mark Riley,
Aerospace Engineer, Engine Certification Office, FAA, Engine &
Propeller Directorate, 12 New England Executive Park, Burlington, MA
01803; phone: 781-238-7758; fax: 781-238-7199; email:
[email protected].
(2) European Aviation Safety Agency AD 2011-0182R1, dated
February 3, 2012, pertains to the subject of this AD.
(3) For service information identified in this AD, contact. You
may review copies of the referenced service information at the FAA,
Engine & Propeller Directorate, 12 New England Executive Park,
Burlington, MA. For information on the availability of this material
at the FAA, call 781-238-7125.
(j) Material Incorporated by Reference
You must use the following service information to do the actions
required by this AD, unless the AD specifies otherwise. The Director
of the Federal Register approved the incorporation by reference
(IBR) under 5 U.S.C. 552(a) and 1 CFR part 51 of the following
service information.
(1) Turbomeca Mandatory Service Bulletin No. 319 75 4810,
Version A, dated May 14, 2008, approved for IBR August 19, 2009 (74
FR 34221, July 15, 2009).
(2) Turbomeca Mandatory Service Bulletin No. 319 75 4810,
Version B, dated January 25, 2011, approved for IBR May 24, 2012.
(3) For service information identified in this AD, contact
Turbomeca, 40220 Tarnos, France; telephone 33 (0)5 59 74 40 00;
telex 570 042; fax 33 (0)5 59 74 45 15.
(4) You may review copies of the referenced service information
at the FAA, Engine & Propeller Directorate, 12 New England Executive
Park, Burlington, MA. For information on the availability of this
material at the FAA, call 781-238-7125.
(5) You may also review copies of the 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: http://www.archives.gov/federal-register/cfr/ibr_locations.html.
Issued in Burlington, Massachusetts, on April 3, 2012.
Colleen M. D'Alessandro,
Assistant Manager, Engine & Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 2012-8584 Filed 4-18-12; 8:45 am]
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