Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines, 13488-13490 [2012-5372]

Download as PDF 13488 Federal Register / Vol. 77, No. 45 / Wednesday, March 7, 2012 / Rules and Regulations required by paragraph (f)(1) or (g)(1) of this AD. (h) Definition of Shop Visit For the purpose of this AD, the term shop visit means the induction of an engine into the shop for maintenance where the front combustion liner is exposed, or when the 04 module has been removed from the engine, or when the engine has been removed from service as a result of paragraph (f)(2) or (g)(2) of this AD. (i) Credit for Previous Action Issued in Burlington, Massachusetts, on February 22, 2012. Peter A. White, Manager, Engine & Propeller Directorate, Aircraft Certification 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. [FR Doc. 2012–5371 Filed 3–6–12; 8:45 am] 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: Alan Strom, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7143; fax: 781–238– 7199; email: alan.strom@faa.gov. SUPPLEMENTARY INFORMATION: BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration An initial or repetitive inspection performed before the effective date of this AD using RR ASB No. RB.211–72–AG456, dated September 9, 2010, satisfies the initial inspection requirement in paragraph (f) or repetitive inspection requirement in paragraph (g) of this AD. 14 CFR Part 39 (j) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) Reciprocating Engines AGENCY: (k) Related Information (1) For more information about this AD, contact Alan Strom, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; email: alan.strom@faa.gov; phone: 781–238– 7143; fax: 781–238–7199. (2) Refer to European Aviation Safety Agency AD 2011–0080, dated May 6, 2011, for related information. srobinson on DSK4SPTVN1PROD with RULES (l) Material Incorporated by Reference (1) 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. (i) Rolls-Royce plc Alert Service Bulletin No. RB.211–72–AG456, Revision 1, dated November 4, 2011. (ii) Rolls-Royce plc Alert Service Bulletin No. RB.211–72–AG456, dated September 9, 2010. (2) For service information identified in this AD, contact Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone: 011 44 1332 242424; fax: 011 44 1332 249936; email: http://www.rolls-royce.com/ contact/civil_team.jsp; or Web: https:// www.aeromanager.com. (3) You may review copies of the 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. (4) You may also review copies of the service information 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/ibrlocations.html. VerDate Mar<15>2010 16:19 Mar 06, 2012 Jkt 226001 [Docket No. FAA–2009–0201; Directorate Identifier 2008–NE–47–AD; Amendment 39– 16972; AD 2010–11–09R1] RIN 2120–AA64 Federal Aviation Administration (FAA), DOT. ACTION: Final rule. We are revising an existing airworthiness directive (AD) for TAE models TAE 125–01 and TAE 125–02– 99 reciprocating engines installed on, but not limited to, Diamond Aircraft Industries Model DA 42 airplanes. That AD currently requires initial and repetitive replacements of proportional pressure reducing valves (PPRVs) (also known as propeller control valves). This new AD relaxes the repetitive replacement interval from a 300-hour interval to a 600-hour interval for PPRVs, P/N 05–7212–E002801, on TAE 125–02–99 engine. This AD was prompted by TAE increasing the life of the PPRV, part number (P/N) 05–7212– E002801, on TAE 125–02–99 engines from 300 to 600 hours. We are issuing this AD to prevent engine in-flight shutdown, possibly resulting in reduced control of the aircraft. DATES: This AD is effective April 11, 2012. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in the AD as of April 11, 2012. The Director of the Federal Register approved the incorporation by reference of certain other publications listed in this AD as of July 13, 2010 (75 FR 32253, June 8, 2010). ADDRESSES: For service information identified in this AD, contact Thielert Aircraft Engines GmbH, Platanenstrasse 14 D–09350, Lichtenstein, Germany; phone: +49–37204–696–0; fax: +49– 37204–696–2912; email: info@centurion-engines.com. You may review copies of the referenced service SUMMARY: PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to revise AD 2010–11–09, Amendment 39–16314 (75 FR 32253, June 8, 2010). That AD applies to the specified products. The NPRM published in the Federal Register on November 22, 2011 (76 FR 72128). That NPRM proposed to retain all of the requirements of AD 2010–11–09, except the repetitive replacement interval in paragraph (e)(2). This AD relaxes the repetitive 300-hour replacement interval to a 600-hour interval. Comments We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM (76 FR 72128, November 22, 2011). Conclusion We reviewed the relevant data and determined that air safety and the public interest require adopting the AD as proposed. Costs of Compliance We estimate that this AD affects about 300 TAE 125–01 and TAE 125–02–99 reciprocating engines installed in Diamond Aircraft Industries Model DA 42 airplanes of U.S. registry. We also estimate that it will take 0.25 work-hour per engine to replace a PPRV and install a vibration isolator to the gearbox E:\FR\FM\07MRR1.SGM 07MRR1 Federal Register / Vol. 77, No. 45 / Wednesday, March 7, 2012 / Rules and Regulations assembly. The average labor rate is $85 per work-hour. Required parts cost about $275 per product. Based on these figures, we estimate the cost of the AD on U.S. operators to be $88,875. PART 39—AIRWORTHINESS DIRECTIVES paragraphs 1 through 20 of TAE SB No. TM TAE 125–1009 P1, Revision 3, dated October 14, 2009, to do the installation. 1. The authority citation for part 39 continues to read as follows: (2) Repetitive PPRV Replacements Thereafter, within every 600 flight hours, replace the PPRV, P/N 05–7212–E002801, with the same P/N PPRV. ■ Authority: 49 U.S.C. 106(g), 40113, 44701. 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. srobinson on DSK4SPTVN1PROD with RULES 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: VerDate Mar<15>2010 16:19 Mar 06, 2012 Jkt 226001 13489 § 39.13 [Amended] 2. The FAA amends § 39.13 by removing airworthiness directive (AD) 2010–11–09, Amendment 39–16314 (75 FR 32253, June 8, 2010), and adding the following new AD: ■ 2010–11–09R1 Thielert Aircraft Engines GmbH: Amendment 39–16972; Docket No. FAA–2009–0201; Directorate Identifier 2008–NE–47–AD. (a) Effective Date This AD is effective April 11, 2012. (b) Affected ADs This AD revises AD 2010–11–09, Amendment 39–16314 (75 FR 32253, June 8, 2010). (c) Applicability This AD applies to Thielert Aircraft Engines GmbH (TAE) models TAE 125–01 and TAE 125–02–99 reciprocating engines designated with part number (P/N) 05–7200– K000301 or 02–7200–14017R1. The engines are installed on, but not limited to, Diamond Aircraft Industries Model DA 42 airplanes. (d) Unsafe Condition This AD was prompted by engine in-flight shutdown incidents reported on Diamond Aircraft Industries DA 42 airplanes equipped with TAE 125 engines. The investigations showed that it was mainly the result of failure of the proportional pressure reducing valve (PPRV) (also known as the propeller control valve) due to high vibrations. Since the release of European Aviation Safety Agency (EASA) AD 2008–0145, the engine gearbox has been identified as the primary source of vibrations for the PPRV, and it has also been determined that failure of the electrical connection to the PPRV could have contributed to some power loss events or inflight shutdowns. We are issuing this AD to prevent engine in-flight shutdown, possibly resulting in reduced control of the aircraft. (e) Actions and Compliance Unless already done, do the following actions. (f) TAE 125–02–99 Reciprocating Engines (1) Initial PPRV Replacement For TAE 125–02–99 reciprocating engines with engine, P/N 05–7200–K000301, within 55 flight hours after the effective date of this AD: (i) Replace the existing PPRV with PPRV, P/N 05–7212–E002801. Use paragraphs A. through B. of TAE Service Bulletin (SB) No. TM TAE 125–1007 P1, Revision 3, dated October 17, 2011, or SB No. TM TAE 125– 1007 P1, Revision 2, dated April 29, 2009, to do the replacement. (ii) Install a vibration isolator, P/N 05– 7212–K022302, to the gearbox assembly. Use PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 (g) TAE 125–01 Reciprocating Engines (1) Initial PPRV Replacement For TAE 125–01 reciprocating engines with engine, P/N 02–7200–14017R1, within 55 flight hours after the effective date of this AD: (i) Replace the existing PPRV with a PPRV, P/N NM–0000–0124501 or P/N 05–7212– K021401. Use paragraph 1 of TAE SB No. TM TAE 125–0018, Revision 1, dated November 12, 2008, to do the replacement. (ii) Inspect the electrical connectors of the PPRV and replace the connectors if damaged, and install a vibration isolator, P/N 05–7212– K023801, to the gearbox assembly. Use paragraphs 1 through 27 of TAE SB No. TM TAE 125–0020, Revision 1, dated November 25, 2009, to do the inspection and installation. (2) Repetitive PPRV Replacements Thereafter, within every 300 flight hours, replace the PPRV with a PPRV, P/N NM– 0000–0124501 or P/N 05–7212–K021401. (h) FAA Differences (1) We have found it necessary to not reference the second paragraph of the unsafe condition from the MCAI EASA AD 2009– 0224. That sentence stated that the problem has only manifested itself on those TAE engines installed on Diamond Aircraft Industries DA 42 aircraft. The affected engines which require a PPRV could be used on other make and model airplanes in the future. (2) We also did not reference the February 28, 2010 compliance date, which is in EASA AD 2009–0193R1, or the January 31, 2010 compliance date which is in EASA AD 2009– 0224. (i) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (j) Related Information (1) Refer to EASA AD 2009–0224, dated October 20, 2009 (TAE 125–02–99), and EASA AD 2009–0193R1, dated December 1, 2009 (TAE 125–01), for related information. (2) For more information about this AD, contact Alan Strom, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7143; fax: 781–238–7199; email: alan.strom@faa.gov, for more information about this AD. (3) For service information identified in this AD, contact Thielert Aircraft Engines GmbH, Platanenstrasse 14 D–09350, Lichtenstein, Germany, phone: +49–37204– 696–0; fax: +49–37204–696–2912; email: info@centurion-engines.com E:\FR\FM\07MRR1.SGM 07MRR1 13490 Federal Register / Vol. 77, No. 45 / Wednesday, March 7, 2012 / Rules and Regulations (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use the following service information to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on April 11, 2012. (i) Thielert Aircraft Engines (TAE) GmbH, TAE Service Bulletin (SB) No. TM TAE 125– 1007 P1, Revision 3, October 17, 2011. (4) The following service information was approved for IBR on July 13, 2010 (75 FR 32253, June 8, 2010). (i) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 125–1007 P1, Revision 2, April 29, 2009. (ii) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 125–1009 P1, Revision 3, dated October 14, 2009. (iii) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 125–0020, including Annexes A and B, Revision 1, dated November 25, 2009. (iv) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 125–0018, Revision 1, dated November 12, 2008. (5) For service information identified in this AD, contact Thielert Aircraft Engines GmbH, Platanenstrasse 14 D–09350, Lichtenstein, Germany, phone: +49–37204– 696–0; fax: +49–37204–696–2912; email: info@centurion-engines.com. (6) 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. (7) 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 February 24, 2012. Peter A. White, Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2012–5372 Filed 3–6–12; 8:45 am] BILLING CODE 4910–13–P SECURITIES AND EXCHANGE COMMISSION is making technical amendments to the rule under which former members and employees of the Commission are required to file with the Commission a statement concerning their practice outside the government. The amendments change the office responsible for processing these statements and provide a means of filing a statement electronically. DATES: Effective: March 7, 2012. FOR FURTHER INFORMATION CONTACT: Shira Pavis Minton, Ethics Counsel, 202–551–7938, Office of the Ethics Counsel, Securities and Exchange Commission, 100 F Street NE., Washington, DC 20549–9150. SUPPLEMENTARY INFORMATION: I. Background SEC Conduct Rule 8(b) 1 requires that any former member or employee of the Commission who, within 2 years after ceasing to be such, is employed or retained as the representative of any person outside the government in any matter in which it is contemplated that he or she will appear before the Commission, or communicate with the Commission or its employees, shall, within ten days of such retainer or employment, or of the time when appearance before, or communication with the Commission or its employees is first contemplated, file with the Secretary of the Commission a statement which includes: (i) A description of the contemplated representation; (ii) An affirmative representation that the former employee while on the Commission’s staff had neither personal and substantial responsibility nor official responsibility for the matter which is the subject of the representation; and (iii) The name of the Commission Division or Office in which the person had been employed. In order to increase efficiency, the Commission is adopting a technical amendment to require that SEC conduct rule 8(b) submissions be sent to the Office of the Ethics Counsel rather than the Secretary of the Commission and provide a means of filing a statement electronically.2 17 CFR Part 200 II. Administrative Law Matters [Release No. 34–66502] Under the Administrative Procedure Act, notice of proposed rulemaking is not required when an agency, for good cause, finds that notice and public comment are impracticable, unnecessary, or contrary to the public interest. The amendments are technical changes, adopted solely to update srobinson on DSK4SPTVN1PROD with RULES Rules of Organization; Conduct and Ethics; and Information and Requests Securities and Exchange Commission. ACTION: Final rule; technical amendment. AGENCY: The Securities and Exchange Commission (‘‘SEC’’ or ‘‘Commission’’) SUMMARY: VerDate Mar<15>2010 16:19 Mar 06, 2012 Jkt 226001 1 17 2 17 PO 00000 CFR 200.735–8(b)(1). CFR 200.735–8(b)(1). Frm 00008 Fmt 4700 Sfmt 4700 references to a statutory provision that remains unchanged except for its designation. For this reason, the Commission finds that it is unnecessary to publish notice of these amendments. Similarly, the amendments do not require analysis under the Regulatory Flexibility Act or analysis of major rule status under the Small Business Regulatory Fairness Act. For purposes of Regulatory Flexibility Act analysis, the term ‘‘rule’’ means any rule for which the agency publishes a general notice of proposed rulemaking, and for purposes of Congressional review of agency rulemaking, the term ‘‘rule’’ does not include any rule of agency organization, procedure or practice that does not substantially affect the rights or obligations of non-agency parties.3 Because these rules relate solely to the agency’s organization, procedure, or practice and do not substantially affect the rights or obligations of non-agency parties, they are not subject to the Small Business Regulatory Enforcement Fairness Act.4 Finally, these amendments do not contain any new collection of information requirements as defined by the Paperwork Reduction Act of 1995, as amended.5 III. Cost-Benefit Analysis The Commission is sensitive to the costs and benefits imposed by its rules. The amendments adopted today are technical in nature and will produce the benefit of facilitating the efficient operation of the Commission. The Commission also believes that these rules will not impose any costs on nonagency parties, or that if there are any such costs, they are negligible. IV. Consideration of Burden on Competition Section 23(a)(2) 6 of the Exchange Act requires the Commission, in adopting rules under the Exchange Act, to consider the competitive effects of such rules. Because this amendment merely makes technical changes to an existing requirement, no competitive advantages or disadvantages would be created. V. Statutory Authority and Text of Amendments We are adopting these technical amendments under the authority set forth in Section 23(a) 7 of the Exchange Act. 35 U.S.C. 601(2) and 5 U.S.C. 804(3)(C). U.S.C. 804. 5 44 U.S.C. 3501–3520. 6 17 CFR 240.23(a)(2). 7 17 CFR 240.23(a). 45 E:\FR\FM\07MRR1.SGM 07MRR1

Agencies

[Federal Register Volume 77, Number 45 (Wednesday, March 7, 2012)]
[Rules and Regulations]
[Pages 13488-13490]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-5372]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0201; Directorate Identifier 2008-NE-47-AD; 
Amendment 39-16972; AD 2010-11-09R1]
RIN 2120-AA64


Airworthiness Directives; Thielert Aircraft Engines GmbH (TAE) 
Reciprocating Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are revising an existing airworthiness directive (AD) for 
TAE models TAE 125-01 and TAE 125-02-99 reciprocating engines installed 
on, but not limited to, Diamond Aircraft Industries Model DA 42 
airplanes. That AD currently requires initial and repetitive 
replacements of proportional pressure reducing valves (PPRVs) (also 
known as propeller control valves). This new AD relaxes the repetitive 
replacement interval from a 300-hour interval to a 600-hour interval 
for PPRVs, P/N 05-7212-E002801, on TAE 125-02-99 engine. This AD was 
prompted by TAE increasing the life of the PPRV, part number (P/N) 05-
7212-E002801, on TAE 125-02-99 engines from 300 to 600 hours. We are 
issuing this AD to prevent engine in-flight shutdown, possibly 
resulting in reduced control of the aircraft.

DATES: This AD is effective April 11, 2012.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of April 11, 
2012.
    The Director of the Federal Register approved the incorporation by 
reference of certain other publications listed in this AD as of July 
13, 2010 (75 FR 32253, June 8, 2010).

ADDRESSES: For service information identified in this AD, contact 
Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350, 
Lichtenstein, Germany; phone: +49-37204-696-0; fax: +49-37204-696-2912; 
email: engines.com">info@centurion-engines.com. 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: Alan Strom, Aerospace Engineer, Engine 
Certification Office, FAA, Engine & Propeller Directorate, 12 New 
England Executive Park, Burlington, MA 01803; phone: 781-238-7143; fax: 
781-238-7199; email: alan.strom@faa.gov.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to revise AD 2010-11-09, Amendment 39-16314 (75 FR 32253, June 
8, 2010). That AD applies to the specified products. The NPRM published 
in the Federal Register on November 22, 2011 (76 FR 72128). That NPRM 
proposed to retain all of the requirements of AD 2010-11-09, except the 
repetitive replacement interval in paragraph (e)(2). This AD relaxes 
the repetitive 300-hour replacement interval to a 600-hour interval.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (76 FR 72128, November 22, 
2011).

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting the AD as proposed.

Costs of Compliance

    We estimate that this AD affects about 300 TAE 125-01 and TAE 125-
02-99 reciprocating engines installed in Diamond Aircraft Industries 
Model DA 42 airplanes of U.S. registry. We also estimate that it will 
take 0.25 work-hour per engine to replace a PPRV and install a 
vibration isolator to the gearbox

[[Page 13489]]

assembly. The average labor rate is $85 per work-hour. Required parts 
cost about $275 per product. Based on these figures, we estimate the 
cost of the AD on U.S. operators to be $88,875.

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 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) 
2010-11-09, Amendment 39-16314 (75 FR 32253, June 8, 2010), and adding 
the following new AD:

2010-11-09R1 Thielert Aircraft Engines GmbH: Amendment 39-16972; 
Docket No. FAA-2009-0201; Directorate Identifier 2008-NE-47-AD.

(a) Effective Date

    This AD is effective April 11, 2012.

(b) Affected ADs

    This AD revises AD 2010-11-09, Amendment 39-16314 (75 FR 32253, 
June 8, 2010).

(c) Applicability

    This AD applies to Thielert Aircraft Engines GmbH (TAE) models 
TAE 125-01 and TAE 125-02-99 reciprocating engines designated with 
part number (P/N) 05-7200-K000301 or 02-7200-14017R1. The engines 
are installed on, but not limited to, Diamond Aircraft Industries 
Model DA 42 airplanes.

(d) Unsafe Condition

    This AD was prompted by engine in-flight shutdown incidents 
reported on Diamond Aircraft Industries DA 42 airplanes equipped 
with TAE 125 engines. The investigations showed that it was mainly 
the result of failure of the proportional pressure reducing valve 
(PPRV) (also known as the propeller control valve) due to high 
vibrations. Since the release of European Aviation Safety Agency 
(EASA) AD 2008-0145, the engine gearbox has been identified as the 
primary source of vibrations for the PPRV, and it has also been 
determined that failure of the electrical connection to the PPRV 
could have contributed to some power loss events or in-flight 
shutdowns. We are issuing this AD to prevent engine in-flight 
shutdown, possibly resulting in reduced control of the aircraft.

(e) Actions and Compliance

    Unless already done, do the following actions.

(f) TAE 125-02-99 Reciprocating Engines

(1) Initial PPRV Replacement

    For TAE 125-02-99 reciprocating engines with engine, P/N 05-
7200-K000301, within 55 flight hours after the effective date of 
this AD:
    (i) Replace the existing PPRV with PPRV, P/N 05-7212-E002801. 
Use paragraphs A. through B. of TAE Service Bulletin (SB) No. TM TAE 
125-1007 P1, Revision 3, dated October 17, 2011, or SB No. TM TAE 
125-1007 P1, Revision 2, dated April 29, 2009, to do the 
replacement.
    (ii) Install a vibration isolator, P/N 05-7212-K022302, to the 
gearbox assembly. Use paragraphs 1 through 20 of TAE SB No. TM TAE 
125-1009 P1, Revision 3, dated October 14, 2009, to do the 
installation.

(2) Repetitive PPRV Replacements

    Thereafter, within every 600 flight hours, replace the PPRV, P/N 
05-7212-E002801, with the same P/N PPRV.

(g) TAE 125-01 Reciprocating Engines

(1) Initial PPRV Replacement

    For TAE 125-01 reciprocating engines with engine, P/N 02-7200-
14017R1, within 55 flight hours after the effective date of this AD:
    (i) Replace the existing PPRV with a PPRV, P/N NM-0000-0124501 
or P/N 05-7212-K021401. Use paragraph 1 of TAE SB No. TM TAE 125-
0018, Revision 1, dated November 12, 2008, to do the replacement.
    (ii) Inspect the electrical connectors of the PPRV and replace 
the connectors if damaged, and install a vibration isolator, P/N 05-
7212-K023801, to the gearbox assembly. Use paragraphs 1 through 27 
of TAE SB No. TM TAE 125-0020, Revision 1, dated November 25, 2009, 
to do the inspection and installation.

(2) Repetitive PPRV Replacements

    Thereafter, within every 300 flight hours, replace the PPRV with 
a PPRV, P/N NM-0000-0124501 or P/N 05-7212-K021401.

(h) FAA Differences

    (1) We have found it necessary to not reference the second 
paragraph of the unsafe condition from the MCAI EASA AD 2009-0224. 
That sentence stated that the problem has only manifested itself on 
those TAE engines installed on Diamond Aircraft Industries DA 42 
aircraft. The affected engines which require a PPRV could be used on 
other make and model airplanes in the future.
    (2) We also did not reference the February 28, 2010 compliance 
date, which is in EASA AD 2009-0193R1, or the January 31, 2010 
compliance date which is in EASA AD 2009-0224.

(i) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, FAA, may approve AMOCs 
for this AD. Use the procedures found in 14 CFR 39.19 to make your 
request.

(j) Related Information

    (1) Refer to EASA AD 2009-0224, dated October 20, 2009 (TAE 125-
02-99), and EASA AD 2009-0193R1, dated December 1, 2009 (TAE 125-
01), for related information.
    (2) For more information about this AD, contact Alan Strom, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: 781-238-7143; fax: 781-238-7199; email: 
alan.strom@faa.gov, for more information about this AD.
    (3) For service information identified in this AD, contact 
Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350, 
Lichtenstein, Germany, phone: +49-37204-696-0; fax: +49-37204-696-
2912; email: engines.com">info@centurion-engines.com

[[Page 13490]]

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) under 5 U.S.C. 552(a) and 1 CFR 
part 51.
    (2) You must use the following service information to do the 
actions required by this AD, unless the AD specifies otherwise.
    (3) The following service information was approved for IBR on 
April 11, 2012.
    (i) Thielert Aircraft Engines (TAE) GmbH, TAE Service Bulletin 
(SB) No. TM TAE 125-1007 P1, Revision 3, October 17, 2011.
    (4) The following service information was approved for IBR on 
July 13, 2010 (75 FR 32253, June 8, 2010).
    (i) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 125-
1007 P1, Revision 2, April 29, 2009.
    (ii) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 
125-1009 P1, Revision 3, dated October 14, 2009.
    (iii) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 
125-0020, including Annexes A and B, Revision 1, dated November 25, 
2009.
    (iv) Thielert Aircraft Engines (TAE) GmbH, TAE SB No. TM TAE 
125-0018, Revision 1, dated November 12, 2008.
    (5) For service information identified in this AD, contact 
Thielert Aircraft Engines GmbH, Platanenstrasse 14 D-09350, 
Lichtenstein, Germany, phone: +49-37204-696-0; fax: +49-37204-696-
2912; email: engines.com">info@centurion-engines.com.
    (6) 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.
    (7) 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 February 24, 2012.
Peter A. White,
Manager, Engine & Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 2012-5372 Filed 3-6-12; 8:45 am]
BILLING CODE 4910-13-P