Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Model TAE 125-02-99 Reciprocating Engines, 65509-65511 [E8-25892]

Download as PDF Federal Register / Vol. 73, No. 214 / Tuesday, November 4, 2008 / Rules and Regulations 65509 Actions Compliance Procedures Remove the pick-up collar support, nylon screws, and launch tube and replace with a new pick-up collar support, custom tension screws, and new launch tube. Within the next 25 hours time-in-service after December 9, 2008 (the effective date of this AD). Follow BRS Service Bulletin SB 2008–04–01 R1, issued April 24, 2008. Alternative Methods of Compliance (AMOCs) DEPARTMENT OF TRANSPORTATION (f) The Manager, Chicago Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to Attn: Gregory Michalik, Senior Aerospace Engineer, Chicago ACO, FAA, 2300 East Devon Avenue, Des Plaines, Illinois 60018; telephone: (847) 294–7135; fax: (847) 294– 7834; e-mail: gregory.michalik@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Federal Aviation Administration Material Incorporated by Reference (g) You must use BRS Service Bulletin SB 2008–04–01 R1, issued April 24, 2008, 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 Ballistic Recovery Systems, Inc., 380 Airport Road, South Saint Paul, MN 55075–3551; telephone: (651) 457–7491; fax: (651) 457–8651; e-mail: dkuefler@brsparachutes.com; Internet: https:// www.brsparachutes.com. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106; 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: https://www.archives.gov/federal_register/ code_of_federal_regulations/ ibr_locations.html. Issued in Kansas City, Missouri, on October 21, 2008. John Colomy, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E8–25762 Filed 11–3–08; 8:45 am] dwashington3 on PRODPC61 with RULES BILLING CODE 4910–13–P VerDate Aug<31>2005 15:01 Nov 03, 2008 Jkt 217001 14 CFR Part 39 [Docket No. FAA–2008–0841; Directorate Identifier 2008–NE–23–AD; Amendment 39– 15720; AD 2008–22–23] RIN 2120–AA64 Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Model TAE 125–02–99 Reciprocating Engines Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule; request for comments. AGENCY: SUMMARY: We are adopting a new airworthiness directive (AD) for the product 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: In-flight engine shutdown incidents have been reported on aircraft equipped with TAE 125–02–99 engines. Preliminary investigations showed that it was mainly the result of cracked disc springs in the clutch. This AD requires actions that are intended to address the unsafe condition described in the MCAI, which could result in engine in-flight shutdown and the subsequent loss of control of the airplane. DATES: This AD becomes November 19, 2008. The Director of the Federal Register approved the incorporation by reference of TAE Service Bulletin TM TAE 125–1006 P1, Revision 1, dated May 30, 2008, listed in the AD as of November 19, 2008. We must receive comments on this AD by December 4, 2008. ADDRESSES: You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: U.S. Department of Transportation, 1200 New Jersey Avenue, SE., West Building Ground PO 00000 Frm 00015 Fmt 4700 Sfmt 4700 Floor, Room W12–140, Washington, DC 20590–0001. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Fax: (202) 493–2251. Examining the AD Docket You may examine the AD docket on the Internet at https:// 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 (telephone (800) 647–5527) is the same as the Mail address provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: jason.yang@faa.gov; telephone (781) 238–7747; fax (781) 238–7199. SUPPLEMENTARY INFORMATION: Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA Airworthiness Directive 2008–0106–E, dated May 30, 2008 (referred to after this as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: In-flight engine shutdown incidents have been reported on aircraft equipped with TAE 125–02–99 engines. Preliminary investigations showed that it was mainly the result of cracked disc springs in the clutch. This condition, if not corrected, could result in further cases of engine in-flight shutdown and the consequent loss of control of the aircraft. To address this unsafe condition, AD 2008–0100–E was published to mandate repetitive inspections until a new clutch P/N 05–7211–K006001 is installed. Since that publication, data collected from the performed inspections revealed that only the clutch assembly P/N 05–7211–K000304 was subject to failure. For the reasons stated above, this EASA AD supersedes AD 2008–0100–E and requires the removal of the affected clutch E:\FR\FM\04NOR1.SGM 04NOR1 65510 Federal Register / Vol. 73, No. 214 / Tuesday, November 4, 2008 / Rules and Regulations assemblies P/N 05–7211–K000304 on all TAE 125–02–99 engines and their replacement by new clutches of an improved design. You may obtain further information by examining the MCAI in the AD docket. FAA’s Determination and Requirements of This AD This product has been approved by the aviation authority of Germany, and is approved for operation in the United States. Pursuant to our bilateral agreement with Germany, they have notified us of the unsafe condition described in the MCAI and service information referenced above. We are issuing this AD because we evaluated all the information provided by Germany and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. dwashington3 on PRODPC61 with RULES FAA’s Determination of the Effective Date An unsafe condition exists that requires the immediate adoption of this AD. The FAA has found that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule because of the short time to comply with this rule. Therefore, we determined that notice and opportunity for public comment before issuing this AD are impracticable and that good cause exists for making this amendment effective in fewer than 30 days. Comments Invited This AD is a final rule that involves requirements affecting flight safety, and we did not precede it by notice and opportunity for public comment. We invite you to send any written relevant data, views, or arguments about this AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2008–0841; Directorate Identifier 2008–NE–23–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this AD. We will consider all comments received by the closing date and may amend this AD because of those comments. We will post all comments we receive, without change, to https:// 15:01 Nov 03, 2008 Jkt 217001 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. Authority for This Rulemaking Relevant Service Information Thielert Aircraft Engines GmbH has issued Service Bulletin TM TAE 125– 1006 P1, Revision 1, dated May 30, 2008. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. VerDate Aug<31>2005 www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this AD. 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. 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: ■ PO 00000 Frm 00016 Fmt 4700 Sfmt 4700 § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new AD: ■ 2008–22–23 Thielert Aircraft Engines GmbH: Amendment 39–15720.; Docket No. FAA–2008–0841; Directorate Identifier 2008–NE–23–AD. Effective Date (a) This airworthiness directive (AD) becomes effective November 19, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Thielert Aircraft Engines GmbH (TAE) model TAE 125–02–99 reciprocating engines with clutch, part number (P/N) 05–7211–K000304, installed. These engines are installed on, but not limited to, Cessna 172 and (Reims-built) F172 series (STC No. SA01303WI); and Diamond DA42 airplanes. Reason ‘‘(d) In-flight engine shutdown incidents have been reported on aircraft equipped with TAE 125–02–99 engines. Preliminary investigations showed that it was mainly the result of cracked disc springs in the clutch. This condition, if not corrected, could result in further cases of engine in-flight shutdown and the consequent loss of control of the aircraft.’’ We are issuing this AD to prevent engine in-flight shutdown and the subsequent loss of control of the airplane. Actions and Compliance (e) Unless already done, do the following actions. (1) For engines that have accumulated, on the effective date of this AD, less than 50 flight hours (FH) since installing clutch, P/N 05–7211–K000304: Upon the accumulation of 50 FH since installing clutch, P/N 05– 7211–K000304, replace the clutch as specified in TAE SB TM TAE 125–1006 P1, Revision 1, dated May 30, 2008. (2) For engines that have accumulated, on the effective date of this AD, 50 or more FH since installing clutch, P/N 05–7211– K000304: Before further flight, replace the clutch as specified in TAE SB TM TAE 125– 1006 P1, Revision 1, dated May 30, 2008. FAA AD Differences (f) We have further clarified the corrective action by specifying the P/N of each affected clutch, and timing the compliance period from when the clutch was installed instead of when it was last inspected. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Engine Certification E:\FR\FM\04NOR1.SGM 04NOR1 Federal Register / Vol. 73, No. 214 / Tuesday, November 4, 2008 / Rules and Regulations Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. (2) Special Flight Permits: We are limiting special flight permits to one ferry flight to a maintenance station to replace the engine clutch. The maximum flight duration must not exceed 2 hours and is limited to VFR conditions. Related Information (h) Refer to MCAI EASA Airworthiness Directive 2008–0106–E, dated May 30, 2008, for related information. (i) Contact Jason Yang, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: jason.yang@faa.gov; telephone (781) 238–7747; fax (781) 238–7199, for more information about this AD. Material Incorporated by Reference (j) You must use Thielert Aircraft Engines GmbH Service Bulletin TM TAE 125–1006 P1, Revision 1, dated May 30, 2008, 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; email: 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: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. Issued in Burlington, Massachusetts, on October 23, 2008. Peter A. White, Assistant Manager, Engine and Propeller Directorate, Aircraft Certification Service. [FR Doc. E8–25892 Filed 11–3–08; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2007–29343; Directorate Identifier 2000–NE–13–AD; Amendment 39– 15721; AD 2008–22–24] dwashington3 on PRODPC61 with RULES RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc RB211–535E4–37, RB211–535E4– B–37, and RB211–535E4–B–75 Series Turbofan Engines Federal Aviation Administration (FAA), Department of Transportation (DOT). AGENCY: VerDate Aug<31>2005 15:01 Nov 03, 2008 Jkt 217001 ACTION: Final rule. SUMMARY: The FAA is superseding an existing airworthiness directive (AD) for Rolls-Royce plc (RR) RB211–535E4–37, RB211–535E4–B–37, and RB211– 535E4–B–75 series turbofan engines. That AD currently requires initial and repetitive ultrasonic inspections of installed low pressure compressor (LPC) fan blade roots on-wing and during overhaul, and relubrication according to accumulated life cycles. Also, that AD introduces application of Metco 58 blade root coating as an optional terminating action. This AD requires the same actions but adds compliance paragraphs to relax the compliance schedule for repetitive inspections for fan blades operating within RB211– 535E4 flight profiles A and B, if certain requirements are met. This AD also relaxes the initial compliance threshold by extending the cycles at which an initial inspection is required. This AD results from RR issuing Mandatory Service Bulletin (MSB) No. RB.211–72– C879, Revision 5 and Revision 6, that introduced a relaxed repetitive compliance schedule for fan blades operating within RB211–535E4 flight profiles A and B, if certain requirements are met, and introduced a relaxed initial compliance threshold. We are issuing this AD to detect cracks in LPC fan blade roots, which if not detected, could lead to uncontained multiple fan blade failure, and damage to the airplane. DATES: This AD becomes effective December 9, 2008. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the regulations as of December 9, 2008. ADDRESSES: You can get the service information identified in this AD from Rolls-Royce plc, PO Box 31, Derby, England, DE248BJ; telephone: 011–44– 1332–242–424; fax: 011–44–1332–249– 936. 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: Ian Dargin, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: ian.dargin@faa.gov; telephone: (781) 238–7178; fax: (781) 238–7199. SUPPLEMENTARY INFORMATION: The FAA proposed to amend 14 CFR part 39 by superseding AD 2005–02–05, Amendment 39–13950 (70 FR 3863, January 27, 2005), with a proposed AD. PO 00000 Frm 00017 Fmt 4700 Sfmt 4700 65511 The proposed AD applies to RR RB211– 535E4–37, RB211–535E4–B–37, and RB211–535E4–B–75 series turbofan engines. We published the proposed AD in the Federal Register on October 25, 2007 (72 FR 60606). That action proposed to require initial and repetitive ultrasonic inspections of installed LPC fan blade roots on-wing and during overhaul, and relubrication according to accumulated life cycles. That action also proposed to add compliance paragraphs to relax the compliance schedule for repetitive inspections for RB211–535E4 engines operating in flight profiles A and B, if certain requirements are met. Examining the AD Docket You may examine the AD docket on the Internet at https:// 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 (telephone (800) 647–5527) is provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. Comments We provided the public the opportunity to participate in the development of this AD. We have considered the comment received. One commenter states that RollsRoyce plc issued Mandatory Service Bulletin No. RB.211–72–C879, Revision 6, dated December 14, 2007, while the proposed AD comment period was still open, and the AD should reference Revision 6. We agree. Revision 6 contains the changes from Revision 5, and relaxes the initial compliance threshold by extending the cycles at which an inspection is required. We changed the AD to reference Revision 6, and made the following changes based on Revision 6: • We deleted proposed AD paragraph (f), which referenced full sets of fan blades modified using RR Service Bulletin No. RB.211–72–C946, Revision 2, dated September 26, 2002, as the reference is unnecessary. As a result we recodified paragraphs (f) through (n). • We clarified that the ultrasonic inspection is performed on the fan blade roots. • Proposed AD paragraph (g) is changed from ‘‘On RB211–535E4 engines, operated to Flight Profile A, ultrasonically inspect, and if required, E:\FR\FM\04NOR1.SGM 04NOR1

Agencies

[Federal Register Volume 73, Number 214 (Tuesday, November 4, 2008)]
[Rules and Regulations]
[Pages 65509-65511]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-25892]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0841; Directorate Identifier 2008-NE-23-AD; 
Amendment 39-15720; AD 2008-22-23]
RIN 2120-AA64


Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) 
Model TAE 125-02-99 Reciprocating Engines

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule; request for comments.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for the 
product 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:

    In-flight engine shutdown incidents have been reported on 
aircraft equipped with TAE 125-02-99 engines. Preliminary 
investigations showed that it was mainly the result of cracked disc 
springs in the clutch.

This AD requires actions that are intended to address the unsafe 
condition described in the MCAI, which could result in engine in-flight 
shutdown and the subsequent loss of control of the airplane.

DATES: This AD becomes November 19, 2008. The Director of the Federal 
Register approved the incorporation by reference of TAE Service 
Bulletin TM TAE 125-1006 P1, Revision 1, dated May 30, 2008, listed in 
the AD as of November 19, 2008.
    We must receive comments on this AD by December 4, 2008.

ADDRESSES:  You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to https://
www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: U.S. Department of Transportation, 1200 New Jersey 
Avenue, SE., West Building Ground Floor, Room W12-140, Washington, DC 
20590-0001.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
     Fax: (202) 493-2251.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://
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 (telephone (800) 647-5527) is the same as 
the Mail address provided in the ADDRESSES section. Comments will be 
available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Jason Yang, Aerospace Engineer, Engine 
Certification Office, FAA, Engine and Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; e-mail: 
jason.yang@faa.gov; telephone (781) 238-7747; fax (781) 238-7199.

SUPPLEMENTARY INFORMATION: 

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
Airworthiness Directive 2008-0106-E, dated May 30, 2008 (referred to 
after this as ``the MCAI''), to correct an unsafe condition for the 
specified products. The MCAI states:

    In-flight engine shutdown incidents have been reported on 
aircraft equipped with TAE 125-02-99 engines. Preliminary 
investigations showed that it was mainly the result of cracked disc 
springs in the clutch. This condition, if not corrected, could 
result in further cases of engine in-flight shutdown and the 
consequent loss of control of the aircraft.
    To address this unsafe condition, AD 2008-0100-E was published 
to mandate repetitive inspections until a new clutch P/N 05-7211-
K006001 is installed.
    Since that publication, data collected from the performed 
inspections revealed that only the clutch assembly P/N 05-7211-
K000304 was subject to failure.
    For the reasons stated above, this EASA AD supersedes AD 2008-
0100-E and requires the removal of the affected clutch

[[Page 65510]]

assemblies P/N 05-7211-K000304 on all TAE 125-02-99 engines and 
their replacement by new clutches of an improved design.

    You may obtain further information by examining the MCAI in the AD 
docket.

Relevant Service Information

    Thielert Aircraft Engines GmbH has issued Service Bulletin TM TAE 
125-1006 P1, Revision 1, dated May 30, 2008. The actions described in 
this service information are intended to correct the unsafe condition 
identified in the MCAI.

FAA's Determination and Requirements of This AD

    This product has been approved by the aviation authority of 
Germany, and is approved for operation in the United States. Pursuant 
to our bilateral agreement with Germany, they have notified us of the 
unsafe condition described in the MCAI and service information 
referenced above. We are issuing this AD because we evaluated all the 
information provided by Germany and determined the unsafe condition 
exists and is likely to exist or develop on other products of the same 
type design.

FAA's Determination of the Effective Date

    An unsafe condition exists that requires the immediate adoption of 
this AD. The FAA has found that the risk to the flying public justifies 
waiving notice and comment prior to adoption of this rule because of 
the short time to comply with this rule. Therefore, we determined that 
notice and opportunity for public comment before issuing this AD are 
impracticable and that good cause exists for making this amendment 
effective in fewer than 30 days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety, and we did not precede it by notice and opportunity for public 
comment. We invite you to send any written relevant data, views, or 
arguments about this AD. Send your comments to an address listed under 
the ADDRESSES section. Include ``Docket No. FAA-2008-0841; Directorate 
Identifier 2008-NE-23-AD'' at the beginning of your comments. We 
specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this AD. We will consider all 
comments received by the closing date and may amend this AD because of 
those comments.
    We will post all comments we receive, without change, to https://
www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this AD.

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.

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:

2008-22-23 Thielert Aircraft Engines GmbH: Amendment 39-15720.; 
Docket No. FAA-2008-0841; Directorate Identifier 2008-NE-23-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective November 
19, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to Thielert Aircraft Engines GmbH (TAE) 
model TAE 125-02-99 reciprocating engines with clutch, part number 
(P/N) 05-7211-K000304, installed. These engines are installed on, 
but not limited to, Cessna 172 and (Reims-built) F172 series (STC 
No. SA01303WI); and Diamond DA42 airplanes.

Reason

    ``(d) In-flight engine shutdown incidents have been reported on 
aircraft equipped with TAE 125-02-99 engines. Preliminary 
investigations showed that it was mainly the result of cracked disc 
springs in the clutch. This condition, if not corrected, could 
result in further cases of engine in-flight shutdown and the 
consequent loss of control of the aircraft.''

    We are issuing this AD to prevent engine in-flight shutdown and 
the subsequent loss of control of the airplane.

Actions and Compliance

    (e) Unless already done, do the following actions.
    (1) For engines that have accumulated, on the effective date of 
this AD, less than 50 flight hours (FH) since installing clutch, P/N 
05-7211-K000304: Upon the accumulation of 50 FH since installing 
clutch, P/N 05-7211-K000304, replace the clutch as specified in TAE 
SB TM TAE 125-1006 P1, Revision 1, dated May 30, 2008.
    (2) For engines that have accumulated, on the effective date of 
this AD, 50 or more FH since installing clutch, P/N 05-7211-K000304: 
Before further flight, replace the clutch as specified in TAE SB TM 
TAE 125-1006 P1, Revision 1, dated May 30, 2008.

FAA AD Differences

    (f) We have further clarified the corrective action by 
specifying the P/N of each affected clutch, and timing the 
compliance period from when the clutch was installed instead of when 
it was last inspected.

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Engine Certification

[[Page 65511]]

Office, FAA, has the authority to approve AMOCs for this AD, if 
requested using the procedures found in 14 CFR 39.19.
    (2) Special Flight Permits: We are limiting special flight 
permits to one ferry flight to a maintenance station to replace the 
engine clutch. The maximum flight duration must not exceed 2 hours 
and is limited to VFR conditions.

Related Information

    (h) Refer to MCAI EASA Airworthiness Directive 2008-0106-E, 
dated May 30, 2008, for related information.
    (i) Contact Jason Yang, Aerospace Engineer, Engine Certification 
Office, FAA, Engine and Propeller Directorate, 12 New England 
Executive Park, Burlington, MA 01803; e-mail: jason.yang@faa.gov; 
telephone (781) 238-7747; fax (781) 238-7199, for more information 
about this AD.

Material Incorporated by Reference

    (j) You must use Thielert Aircraft Engines GmbH Service Bulletin 
TM TAE 125-1006 P1, Revision 1, dated May 30, 2008, 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: 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: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Burlington, Massachusetts, on October 23, 2008.
Peter A. White,
Assistant Manager, Engine and Propeller Directorate, Aircraft 
Certification Service.
 [FR Doc. E8-25892 Filed 11-3-08; 8:45 am]
BILLING CODE 4910-13-P