[Federal Register Volume 75, Number 133 (Tuesday, July 13, 2010)]
[Rules and Regulations]
[Pages 39803-39804]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-16618]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-0308; Directorate Identifier 2010-NE-17-AD;
Amendment 39-16366; AD 2010-14-21]
RIN 2120-AA64
Airworthiness Directives; Thielert Aircraft Engines GmbH Model
TAE 125-01 Reciprocating Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) issued 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:
Service has shown that the small outlet of the blow-by oil
separators, part number 02-7250-18100R1; 02-7250-18100R2; 02-7250-
18100R3; 02-7250-18100R4; 02-7250-18300R1; 02-7250-18300R2; 02-7250-
18300R3; 02-7250-18300R4; or 02-7250-18300R5, may cause a blow-by
gas pressure increase inside the crankcase of the engine in excess
of the oil seal design pressure limits. Leaking engine oil may
adversely affect the gearbox clutch or the engine lubrication
system. This condition, if not corrected, could lead to in-flight
cases of engine power loss or ultimately, shutdown.
We are issuing this AD to prevent loss of engine power or uncommanded
engine shutdown during flight due to excessive crankcase blow-by gas
pressure.
DATES: This AD becomes effective August 17, 2010. The Director of the
Federal Register approved the incorporation by reference of certain
publications listed in this AD as of August 17, 2010.
ADDRESSES: The Docket Operations office is located at Docket Management
Facility, U.S. Department of Transportation, 1200 New Jersey Avenue
SE., West Building Ground Floor, Room W12-140, Washington, DC 20590-
0001.
FOR FURTHER INFORMATION CONTACT: Tara Chaidez, Aerospace Engineer,
Engine Certification Office, FAA, Engine and Propeller Directorate, 12
New England Executive Park, Burlington, MA 01803; e-mail:
[email protected]; telephone (781) 238-7773; fax (781) 238-7199.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on April 5, 2010 (75 FR
17084). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states that:
Service has shown that the small outlet of the blow-by
separators, part number 02-7250-18100R1; 02-7250-18100R2; 02-7250-
18100R3; 02-7250-18100R4; 02-7250-18300R1; 02-7250-18300R2; 02-7250-
18300R3; 02-7250-18300R4; or 02-7250-18300R5, may cause a blow-by
gas pressure increase inside the crankcase of the engine in excess
of the oil seal design pressure limits. Leaking engine oil may
adversely affect the gearbox clutch or the engine lubrication
system. This condition, if not corrected, could lead to in-flight
cases of engine power loss or ultimately, shutdown.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or on the determination of
the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed.
Costs of Compliance
Based on the service information, we estimate that this AD will
affect about 250 Thielert Aircraft Engines GmbH model TAE 125-01
engines installed on airplanes of U.S. registry. We also estimate that
it will take about 1.5 work-hours per engine to comply with this AD.
The average labor rate is $85 per work-hour. Required parts will cost
about $1,500 per engine. Based on these figures, we estimate the cost
of the AD on U.S. operators to be $406,875.
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 above, I certify this AD:
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 AD and placed it in the AD docket.
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 AD, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (phone (800) 647-5527) is provided in the
ADDRESSES section. Comments will be
[[Page 39804]]
available in the AD docket shortly after receipt.
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 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 AD:
2010-14-21 Thielert Aircraft Engines GmbH: Amendment 39-16366.
Docket No. FAA-2010-0308; Directorate Identifier 2010-NE-17-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective August
17, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Thielert Aircraft Engines GmbH model TAE
125-01 reciprocating engines with any of the following part number
blow-by oil separators installed:
Table 1--Part Numbers of Affected Blow-By Oil Separators
----------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------
02-7250-18100R1 02-7250-18100R2 02-7250-18100R3
02-7250-18100R4 02-7250-18300R1 02-7250-18300R2
02-7250-18300R3 02-7250-18300R4 02-7250-18300R5
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These engines are installed in, but not limited to, Diamond
Aircraft Industries Model DA 40, Piper PA-28-161 (Supplemental Type
Certificate (STC) No. SA03303AT), and Cessna 172 (STC No. SA01303WI)
airplanes.
Reason
(d) Service has shown that the small outlet of the blow-by oil
separators, part number 02-7250-18100R1; 02-7250-18100R2; 02-7250-
18100R3; 02-7250-18100R4; 02-7250-18300R1; 02-7250-18300R2; 02-7250-
18300R3; 02-7250-18300R4; or 02-7250-18300R5, may cause a blow-by
gas pressure increase inside the crankcase of the engine in excess
of the oil seal design pressure limits. Leaking engine oil may
adversely affect the gearbox clutch or the engine lubrication
system. This condition, if not corrected, could lead to in-flight
cases of engine power loss or ultimately, shutdown.
This AD results from mandatory continuing airworthiness
information (MCAI) issued by an aviation authority of another
country to identify and correct an unsafe condition on an aviation
product. We are issuing this AD to prevent loss of engine power or
uncommanded engine shutdown during flight due to excessive crankcase
blow-by gas pressure.
Actions and Compliance
(e) Unless already done, do the following actions:
(1) Remove the blow-by oil separators listed by part number in
Table 1 of this AD within the next 110 flight hours after the
effective date of this AD.
(2) Use the Measures section of Thielert Aircraft Engines GmbH
Service Bulletin No. TM TAE 125-0019, Revision 1, dated March 5,
2009, to do the removal from service.
FAA AD Differences
(f) None.
Alternative Methods of Compliance (AMOCs)
(g) The Manager, Engine Certification Office, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19.
Related Information
(h) Refer to European Aviation Safety Agency AD 2010-0020, dated
February 8, 2010, for related information.
(i) Contact Tara Chaidez, Aerospace Engineer, Engine
Certification Office, FAA, Engine and Propeller Directorate, 12 New
England Executive Park, Burlington, MA 01803; e-mail:
[email protected]; telephone (781) 238-7773; fax (781) 238-7199,
for more information about this AD.
Material Incorporated by Reference
(j) You must use Thielert Aircraft Engines GmbH Service Bulletin
No. TM TAE 125-0019, Revision 1, dated March 5, 2009, to do the
actions required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350,
Lichtenstein, Germany, telephone: +49-37204-696-0; fax: +49-37204-
696- 55; e-mail: engines.com">info@centurion-engines.com.
(3) You may review copies at the FAA, New England Region, 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.
Issued in Burlington, Massachusetts, on July 1, 2010.
Francis A. Favara,
Manager, Engine and Propeller Directorate, Aircraft Certification
Service.
[FR Doc. 2010-16618 Filed 7-12-10; 8:45 am]
BILLING CODE 4910-13-P