[Federal Register: January 19, 2006 (Volume 71, Number 12)]
[Rules and Regulations]
[Page 2993-2994]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr19ja06-2]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. 2000-NE-12-AD; Amendment 39-14423; AD 2001-08-14R1]
RIN 2120-AA64
Airworthiness Directives; Turbomeca S.A. Arrius Models 2B, 2B1,
and 2F Turboshaft Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is revising an existing airworthiness directive (AD)
for Turbomeca S.A. Arrius Models 2B, 2B1, and 2F turboshaft engines.
That AD currently requires replacing the right injector half manifold,
left injector half manifold, and privilege injector pipe. This AD
requires the same actions, but relaxes the compliance time for the
repetitive replacements on Arrius 2F engines. This AD results from
Turbomeca relaxing the repetitive replacement interval for Arrius 2F
engine fuel nozzles based on review of returned fuel nozzles to
Turbomeca. We are issuing this AD to prevent engine flameout during
rapid deceleration, or the inability to maintain the 2.5 minutes one
engine inoperative (OEI) rating, and to prevent air path cracks due to
blockage of the fuel injection manifolds.
DATES: This AD becomes effective February 23, 2006. The Director of the
Federal Register approved the incorporation by reference of certain
publications listed in the regulations as of February 23, 2006.
ADDRESSES: You can get the service information identified in this AD
from Turbomeca S.A., 40220 Tarnos, France; telephone: (33) 05 59 64 40
00; fax: (33) 05 59 64 60 80.
You may examine the AD docket at the FAA, New England Region,
Office of the Regional Counsel, 12 New England Executive Park,
Burlington, MA.
FOR FURTHER INFORMATION CONTACT: Christopher Spinney, Aerospace
Engineer, Engine Certification Office, FAA, Engine and Propeller
Directorate, 12 New England Executive Park, Burlington, MA 01803-5299;
telephone (781) 238-7175; fax (781) 238-7199.
SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39
with a proposed AD. The proposed AD applies to Turbomeca S.A. Arrius
Models 2B, 2B1, and 2F turboshaft engines. We published the proposed AD
in the Federal Register on May 27, 2005 (70 FR 30651). That action
proposed to relax time requirements for the replacement of the right
injector half manifold, left injector half manifold, and privilege
injector pipe on Arrius 2F engines.
Examining the AD Docket
You may examine the AD Docket (including any comments and service
information), by appointment, between 8 a.m. and 4:30 p.m., Monday
through Friday, except Federal holidays. See ADDRESSES for the
location.
Comments
We provided the public the opportunity to participate in the
development of this AD. We received no comments on the proposal or on
the determination of the cost to the public.
Conclusion
We carefully reviewed the available data and determined that air
safety and the public interest require adopting the AD as proposed.
Costs of Compliance
About 266 Turbomeca S.A. Arrius Models 2B, 2B1, and 2F turboshaft
engines of the affected design are in the worldwide fleet. We estimate
that 124 of these engines are installed on helicopters of U.S.
registry. We also estimate that it will take about two work hours per
engine to perform these actions, and that the average labor rate is $65
per work hour. Required parts will cost about $14,320 per engine. The
manufacturer has advised the DGAC that it may provide the parts at no
cost to the operator, thereby substantially reducing the cost of this
rule. Based on these figures, we estimate the total cost of the AD to
U.S. operators to replace all the affected parts one time to be
$1,791,800.
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.
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 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); and
(3) Will not have a significant economic impact, positive or
negative,
[[Page 2994]]
on a substantial number of small entities under the criteria of the
Regulatory Flexibility Act.
We prepared a summary of the costs to comply with this AD and
placed it in the AD Docket. You may get a copy of this summary by
sending a request to us at the address listed under ADDRESSES. Include
``AD Docket No. 2000-NE-12-AD'' in your request.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
Reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the Federal Aviation Administration 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 Amendment 39-12218 (66 FR
20910, April 26, 2001) and by adding a new airworthiness directive, to
read as follows:
2001-08-14R1 Turbomeca S.A.: Amendment 39-14423. Docket No. 2000-NE-
12-AD. Revises AD 2001-08-14, Amendment 39-12218.
Applicability
This AD applies to Arrius Models 2B, 2B1, and 2F engines. These
engines are installed on but not limited to Eurocopter France Model
EC120B and Eurocopter Deutschland EC135 T1 rotorcraft.
Note 1: This AD applies to each engine identified in the
preceding applicability provision, regardless of whether it has been
modified, altered, or repaired in the area subject to the
requirements of this AD. For engines that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must request approval for an
alternative method of compliance in accordance with paragraph (d) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by this AD; and, if the unsafe condition has not been
eliminated, the request should include specific proposed actions to
address it.
Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified unless the actions
have already been done.
To prevent engine flameout and the inability to maintain the 2.5
minutes one engine inoperative (OEI) rating due to blockage of the
fuel injection manifolds, do the following:
Initial Replacement
(a) If not already done in accordance with Turbomeca Alert
Service Bulletin (ASB) No. A319 73 2012, Revision 2, dated May 25,
1999, or Revision 3, dated July 21, 2000, or ASB No. A319 73 4001,
Revision 3, dated May 25, 1999, or Revision 4, dated October 20,
2000, replace injector manifolds and borescope-inspect the flame
tube and the high pressure turbine area within 30 days after the
effective date of this AD, or prior to exceeding 200 hours time-in-
service (TIS), whichever is later. Do these in accordance with
Instructions 2.A. through 2.C. of Turbomeca ASB No. A319 73 2012,
Revision 6, dated August 14, 2004, for Arrius 2B and 2B1 turboshaft
engines, and ASB No. A319 73 4001, Revision 7, dated August 14,
2004, for Arrius 2F turboshaft engines, except that replacement may
be done at any appropriately rated repair shop.
Repetitive Replacements
(b) Thereafter, replace injector manifolds, in accordance with
Instructions 2.A. through 2.C. of Turbomeca ASB No. A319 73 2012,
Revision 6, dated August 14, 2004, for Arrius 2B and 2B1 turboshaft
engines, and ASB No. A319 73 4001, Revision 7, dated August 14,
2004, for Arrius 2F turboshaft engines, except that replacement may
be done at any appropriately rated repair shop, as follows:
(1) For Arrius 2B and 2B1 engines, replace within 200 hours TIS
since last injector manifolds replacement.
(2) For Arrius 2F engines, replace within 400 hours TIS since
last injector manifolds replacement.
(3) For all engines, replace injector manifolds before further
flight after performing the applicable flight manual or overhaul
manual power check if that check shows a negative turbine outlet
temperature (TOT) margin or negative T4 margin.
Definition
(c) For the purposes of this AD, time-in-service (TIS) is
defined as the number of engine operating hours on the manifolds
since the manifolds were new or since the manifolds were
refurbished.
Alternative Methods of Compliance
(d) An alternative method of compliance or adjustment of the
compliance time that provides an acceptable level of safety may be
used if approved by the Manager, Engine Certification Office.
Operators must submit their request through an appropriate FAA
Principal Maintenance Inspector, who may add comments and then send
it to the Manager, Engine Certification Office.
Note 2: Information concerning the existence of approved
alternative methods of compliance with this airworthiness directive,
if any, may be obtained from the Engine Certification Office.
Special Flight Permits
(e) Special flight permits may be issued in accordance with
Sec. Sec. 21.197 and 21.199 of the Federal Aviation Regulations (14
CFR 21.197 and 21.199) to operate the aircraft to a location where
the requirements of this AD can be accomplished.
Documents That Have Been Incorporated by Reference
(f) The inspections and replacements must be done in accordance
with the following Turbomeca S.A. mandatory alert service bulletins
(ASBs):
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Document No. Pages Revision Date
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ASB No. A319 73 2012, Total pages: 8............ 8 6 August 14, 2004.
ASB No. A319 73 4001, Total pages: 8............ 8 7 August 14, 2004.
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The Director of the Federal Register approved the incorporation
by reference of these service bulletins in accordance with 5 U.S.C.
552(a) and 1 CFR part 51. Copies may be obtained from Turbomeca
S.A., 40220 Tarnos, France; telephone: (33) 05 59 64 40 00; fax:
(33) 05 59 64 60 80. Copies may be inspected at the FAA, New England
Region, Office of the Regional Counsel, 12 New England Executive
Park, Burlington, MA; or 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
.
Note 3: The subject of this AD was addressed by the Direction
Generale de L'Aviation Civile (DGAC), which is the airworthiness
authority for France, in airworthiness directives AD 1999-217(A) and
AD 1999-233(A).
Effective Date
(g) This airworthiness directive (AD) becomes effective February
23, 2006.
Issued in Burlington, Massachusetts, on January 9, 2006.
Peter A. White,
Acting Manager, Engine and Propeller Directorate, Aircraft
Certification Service.
[FR Doc. 06-366 Filed 1-18-06; 8:45 am]
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