Airworthiness Directives; Austro Engine GmbH Engines, 45075-45078 [2020-16127]

Download as PDF Federal Register / Vol. 85, No. 144 / Monday, July 27, 2020 / Rules and Regulations 2020–15–11 PZL Swidnik S.A.: Amendment 39–21174; Docket No. FAA–2020–0675; Product Identifier 2018–SW–027–AD. (a) Applicability This AD applies to PZL Swidnik S.A. (PZL) Model PZL W–3A helicopters, certificated in any category, with a main rotor (M/R) vibration absorber star part number (P/N) 30.23.005.01.04 installed. (b) Unsafe Condition This AD defines the unsafe condition as corrosion pits in the M/R vibration absorber star. This condition could result in structural failure of the M/R vibration absorber star, damage to the main and tail rotor, and subsequent loss of control of the helicopter. (c) Effective Date This AD becomes effective August 11, 2020. jbell on DSKJLSW7X2PROD with RULES (d) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (e) Required Actions For helicopters with a serial number (S/N) up to 37.10.12 inclusive, within 25 hours time-in-service (TIS) or 15 days, whichever occurs first; and for helicopters with an S/N above 37.10.12, within 300 hours TIS or 12 months after the date of manufacture, whichever occurs first: (1) Access the M/R vibration absorber by following Attachment 1, Procedure— Removal, Inspection, Repair, and Installation of Vibration Absorber Star, section II., of WYTWORNIA SPRZE˛TU KOMUNIKACYJNEGO ‘‘PZL-Swidnik’’ Spolka Akcyjna Mandatory Bulletin No. BO– 37–18–291, dated March 13, 2018 (MB BO– 37–18–291 Attachment 1). (i) Clean the M/R vibration absorber star surface. Visually inspect the M/R vibration absorber star for paint coating delamination, blistering, discoloration, and missing paint coating, a scratch, a dent, a nick, and corrosion. (ii) If there is any paint coating delamination, blistering, or discoloration, or missing paint, any scratch, any dent, any nick, or corrosion, before further flight, mechanically remove any remaining paint coating and inspect the M/R vibration absorber star for a scratch, a dent, a nick, and corrosion. Additionally, inspect the heads of each bolt P/N 30.23.000.08.04 that secures the vibration absorber star to the bracket for corrosion under the bolt heads. Note 1 to paragraph (e)(1)(ii) of this AD: the anodic coating may become damaged while removing the paint coating. (A) If there is no scratch, dent, nick, or corrosion on the M/R vibration absorber star, before further flight, repair the paint coating. (B) If there is a scratch, a dent, a nick, or corrosion on the M/R vibration absorber star not exceeding the accumulated maximum total polishing depth of 0.5 mm, using 80– 100 grit abrasive paper or an equivalent grit file or scraper, polish out any scratch, dent, nick, and corrosion and do the following: VerDate Sep<11>2014 16:16 Jul 24, 2020 Jkt 250001 45075 (1) Using 150–180 grit abrasive paper, blend the repaired surface and make a smooth chamfer as shown in Sketch 2. Blending Method, MB BO–37–18–291 Attachment 1. The blending width ‘‘S’’ must be at least 10 times greater than blending depth ‘‘h.’’ The radii ‘‘R1’’ and ‘‘R2’’ must be at least 5 times greater than depth ‘‘h.’’ (2) Using 600–900 grit abrasive paper, polish the repaired surface and repair the paint coating. (C) If there is a scratch, a dent, a nick, or corrosion on the M/R vibration absorber star that meets or exceeds the accumulated maximum total polishing depth of 0.5 mm, before further flight, remove from service the M/R vibration absorber star. (D) If there is corrosion on the head of any bolt P/N 30.23.000.08.04 that secures the vibration absorber star to the bracket, before further flight, repair or replace the M/R vibration absorber star in accordance with FAA approved procedures. (2) Thereafter, at intervals not to exceed 300 hours TIS or 1 year, whichever occurs first, perform the actions required by paragraph (e)(1) of this AD. (3) After the effective date of this AD, do not install an M/R vibration absorber star on any helicopter unless the requirements of paragraph (e)(1) of this AD have been accomplished. Spolka Akcyjna Mandatory Bulletin No. BO– 37–18–291, dated March 13, 2018. (ii) [Reserved] (3) For service information identified in this AD, contact PZL-S´widnik S.A., A1. Lotniko´w Polskich 1, 21–045 S´widnik, Poland; telephone +48 81 468 09 01, 751 20 71; fax +48 81 468 09 19, 751 21 73; or at www.pzl.swidnik.pl. (4) You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N–321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817- 222–5110. (5) You may view this 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, email fedreg.legal@nara.gov, or go to: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. (f) Alternative Methods of Compliance (AMOCs) (1) The Manager, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Kristi Bradley, Aerospace Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817–222–5110; email 9ASW-FTW-AMOC-Requests@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, the FAA suggests that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC. DEPARTMENT OF TRANSPORTATION (g) Additional Information The subject of this AD is addressed in European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD No. 2018–0070, dated March 27, 2018. You may view the EASA AD on the internet at https://www.regulations.gov in Docket No. FAA–2020–0675. (h) Subject Joint Aircraft Service Component (JASC) Code: 6300, Main Rotor Drive System. (i) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) WYTWORNIA SPRZE˛TU KOMUNIKACYJNEGO ‘‘PZL-Swidnik’’ PO 00000 Frm 00019 Fmt 4700 Sfmt 4700 Issued on July 14, 2020. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2020–16129 Filed 7–24–20; 8:45 am] BILLING CODE 4910–13–P Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2020–0136; Project Identifier MCAI–2019–00114–E; Amendment 39–21168; AD 2020–15–05] RIN 2120–AA64 Airworthiness Directives; Austro Engine GmbH Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is superseding Airworthiness Directive (AD) 2018–18– 02 for certain Austro Engine GmbH model E4 engines and all Austro Engine GmbH model E4P engines. AD 2018– 18–02 required replacement of the timing chain and amending certain airplane flight manuals (AFMs) to limit the use of windmill restarts. This AD requires amendment of certain existing AFMs to limit the use of windmill restarts and removes the timing chain replacement requirement in AD 2018– 18–02. This AD was prompted by reports of considerable wear of the timing chain on the affected engines. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective August 31, 2020. The Director of the Federal Register approved the incorporation by reference SUMMARY: E:\FR\FM\27JYR1.SGM 27JYR1 45076 Federal Register / Vol. 85, No. 144 / Monday, July 27, 2020 / Rules and Regulations of certain publications listed in this AD as of August 31, 2020. ADDRESSES: For service information identified in this final rule, contact Diamond Aircraft Industries, N. A., Otto-Strabe 5, A–2700 Wiener Neustadt, A2700, Austria; phone: +43 2622 26700; fax: +43 2622 26780; website: www.diamondaircraft.com. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781–238–7759. It is also available on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2020–0136. Examining the AD Docket You may examine the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2020– 0136; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The address for Docket Operations is 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: Mehdi Lamnyi, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238–7743; fax: 781–238–7199; email: Mehdi.Lamnyi@faa.gov. SUPPLEMENTARY INFORMATION: Discussion The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2018–18–02, Amendment 39–19381 (83 FR 53802, October 25, 2018), (‘‘AD 2018–18–02’’). AD 2018–18–02 applied to certain Austro Engine GmbH model E4 engines and all Austro Engine GmbH model E4P engines. The NPRM published in the Federal Register on March 17, 2020 (85 FR 15079). The NPRM was prompted by reports of considerable wear of the timing chain on the affected engines. The NPRM proposed to retain the requirements of AD 2018–18–02 for amending certain AFMs to limit the use of windmill restarts to emergency procedures. The NPRM also proposed to remove the requirement in AD 2018– 18–02 for replacing the timing chain. The FAA is issuing this AD to address the unsafe condition on these products. The European Union Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA AD 2017–0103R1, dated February 25, 2019 (referred to after this as ‘‘the MCAI’’), to address the unsafe condition on these products. The MCAI states: Considerable wear of the timing chain has been detected on some engines. This may have been caused by windmilling restarts, which are known to cause high stress to the timing chain. This condition, if not detected and corrected, could lead to failure of the timing chain and consequent engine power loss, possibly resulting in reduced control of the aeroplane. To address this potential unsafe condition, AE included instructions in the engine maintenance manual to periodically inspect the condition of the timing chain and, depending on findings, to replace the timing chain and the chain wheel. The operation manual was updated to allow windmilling restart only as an emergency procedure. AE also published Mandatory Service Bulletin (MSB) MSB–E4–017/2, providing instructions to replace the timing chain for engines with known windmilling restarts, and EASA issued AD 2017–0103, requiring replacement of the timing chain for engines with known windmilling restarts, and amendment of the applicable Aircraft Flight Manual (AFM). Since that [EASA] AD was issued, AE revised the applicable Airworthiness Limitation Section (ALS) including, among others, the limitation required by that AD. Consequently, EASA published AD 2019–0041, requiring accomplishment of the actions specified in the ALS. For the reason described above, this [EASA] AD is revised accordingly, removing the requirement of timing chain replacement. This action remain required through EASA AD 2019–0041. You may obtain further information by examining the MCAI in the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2020– 0136. Comments The FAA gave the public the opportunity to participate in developing this final rule. The FAA received no comments on the NPRM or on the determination of the cost to the public. Conclusion The FAA reviewed the relevant data and determined that air safety and the public interest require adopting this final rule as proposed except for minor editorial changes. The FAA has determined that these minor changes: • Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM. Related Service Information Under 1 CFR Part 51 The FAA reviewed Diamond Aircraft (DA) Temporary Revision (TR) TR– ¨ M–42–973, dated August 12, 2016, MA for the Diamond Aircraft Industries (DAI) model DA 42 NG Airplane Flight ¨ M– Manual (AFM) and DA TR TR–MA 62–240, dated August 12, 2016, for the DAI model DA 62 AFM. These TRs define the removal of the normal operation procedure for windmilling restart for the respective airplanes. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Costs of Compliance The FAA estimates that this AD affects 211 engines installed on airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: jbell on DSKJLSW7X2PROD with RULES ESTIMATED COSTS Action Labor cost Amend AFM .................................................... 1 work-hour × $85 per hour = $85 ................. Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, VerDate Sep<11>2014 16:16 Jul 24, 2020 Jkt 250001 section 106, describes the authority of the FAA Administrator. Subtitle VII: Aviation Programs, describes in more PO 00000 Frm 00020 Fmt 4700 Sfmt 4700 Cost per product Parts cost $0 $85 Cost on U.S. operators $17,935 detail the scope of the Agency’s authority. The FAA is issuing this rulemaking under the authority described in E:\FR\FM\27JYR1.SGM 27JYR1 Federal Register / Vol. 85, No. 144 / Monday, July 27, 2020 / Rules and Regulations 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 jbell on DSKJLSW7X2PROD with RULES 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) Will not affect intrastate aviation in Alaska, 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. VerDate Sep<11>2014 16:16 Jul 24, 2020 Jkt 250001 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 9.13 [Amended] 2. The FAA amends § 39.13 by: a. Removing AD 2018–18–02, Amendment 39–19381 (83 FR 53802, October 25, 2018); and ■ b. Adding the following new airworthiness directive (AD): ■ ■ 2020–15–05 Austro Engine GmbH: Amendment 39–21168; Docket No. FAA–2020–0136; Project Identifier MCAI–2019–00114–E. (a) Effective Date PO 00000 This AD is effective August 31, 2020. Frm 00021 Fmt 4700 Sfmt 4700 45077 (b) Affected ADs This AD replaces AD 2018–18–02, Amendment 39–19381 (83 FR 53802, October 25, 2018). (c) Applicability This AD applies to Austro Engine GmbH model E4 engines with serial numbers that have a ‘‘–B’’ or ‘‘–C’’ configuration and to model E4P engines, all serial numbers. (d) Subject Joint Aircraft System Component (JASC) Code 8520, Reciprocating Engine Power Section. (e) Unsafe Condition This AD was prompted by reports of considerable wear of the timing chain on the affected engines. The FAA is issuing this AD to prevent failure of the engine timing chain. The unsafe condition, if not addressed, could result in failure of the engine timing chain, loss of engine thrust control, and reduced control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Within 30 days after the effective date of this AD, under the Emergency Procedures chapter, amend the applicable airplane flight manual (AFM) by adding the information in Figure 1 to paragraph (g)(1) of this AD to limit the use of a windmilling restart to only an emergency procedure. E:\FR\FM\27JYR1.SGM 27JYR1 Federal Register / Vol. 85, No. 144 / Monday, July 27, 2020 / Rules and Regulations (2) For affected Austro Engine GmbH model E4 engines installed on Diamond Aircraft Industries (DAI) model Diamond Aircraft (DA) 42 NG and DA 42 M–NG airplanes, and for Austro Engine GmbH model E4P engines installed on DAI model DA 62 airplanes, using DA AFM Temporary ¨ M–42–973, and DA Revision (TR) TR–MA ¨ M–62–240, both dated AFM TR TR–MA August 12, 2016, to update the applicable AFM is an acceptable method to comply with paragraph (g)(1) of this AD. jbell on DSKJLSW7X2PROD with RULES (h) Credit for Previous Actions You may take credit for actions required by paragraph (g) of this AD if you amended the applicable AFM for the airplane with the affected engine installed before the effective date of this AD in accordance with AD 2018– 18–02. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ECO Branch, send it to the attention of the person identified in paragraph (j)(1) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov. VerDate Sep<11>2014 16:16 Jul 24, 2020 Jkt 250001 (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (j) Related Information (1) For more information about this AD, contact Mehdi Lamnyi, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781–238– 7743; fax: 781–238–7199; email: Mehdi.Lamnyi@faa.gov. (2) Refer to European Union Aviation Safety Agency (EASA) AD 2017–0103R1, dated February 25, 2019, for more information. You may examine the EASA AD in the AD docket on the internet at https:// www.regulations.gov by searching for and locating it in Docket No. FAA–2020–0136. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Diamond Aircraft (DA) Temporary ¨ M–42–973, dated Revision (TR) TR–MA August 12, 2016, for the Diamond Aircraft PO 00000 Frm 00022 Fmt 4700 Sfmt 9990 Industries (DAI) model DA 42 NG Airplane Flight Manual (AFM). ¨ M–62–240, dated (ii) DA AFM TR TR–MA August 12, 2016, for the DAI model DA 62 AFM. (3) For Diamond Aircraft Industries service information identified in this AD, contact Diamond Aircraft Industries, N.A., OttoStrabe 5, A–2700 Wiener Neustadt, A2700, Austria; phone: +43 2622 26700; fax: +43 2622 26780; website: www.diamondaircraft.com. (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781–238–7759. (5) You may view this 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, email: fedreg.legal@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ ibr-locations.html. Issued on July 9, 2020. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2020–16127 Filed 7–24–20; 8:45 am] BILLING CODE 4910–13–P E:\FR\FM\27JYR1.SGM 27JYR1 ER27JY20.001</GPH> 45078

Agencies

[Federal Register Volume 85, Number 144 (Monday, July 27, 2020)]
[Rules and Regulations]
[Pages 45075-45078]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-16127]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0136; Project Identifier MCAI-2019-00114-E; 
Amendment 39-21168; AD 2020-15-05]
RIN 2120-AA64


Airworthiness Directives; Austro Engine GmbH Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2018-18-02 
for certain Austro Engine GmbH model E4 engines and all Austro Engine 
GmbH model E4P engines. AD 2018-18-02 required replacement of the 
timing chain and amending certain airplane flight manuals (AFMs) to 
limit the use of windmill restarts. This AD requires amendment of 
certain existing AFMs to limit the use of windmill restarts and removes 
the timing chain replacement requirement in AD 2018-18-02. This AD was 
prompted by reports of considerable wear of the timing chain on the 
affected engines. The FAA is issuing this AD to address the unsafe 
condition on these products.

DATES: This AD is effective August 31, 2020.
    The Director of the Federal Register approved the incorporation by 
reference

[[Page 45076]]

of certain publications listed in this AD as of August 31, 2020.

ADDRESSES: For service information identified in this final rule, 
contact Diamond Aircraft Industries, N. A., Otto-Stra[beta]e 5, A-2700 
Wiener Neustadt, A2700, Austria; phone: +43 2622 26700; fax: +43 2622 
26780; website: www.diamondaircraft.com. You may view this service 
information at the FAA, Airworthiness Products Section, Operational 
Safety Branch, 1200 District Avenue, Burlington, MA, 01803. For 
information on the availability of this material at the FAA, call 781-
238-7759. It is also available on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0136.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0136; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the mandatory continuing airworthiness information 
(MCAI), any comments received, and other information. The address for 
Docket Operations is 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: Mehdi Lamnyi, Aerospace Engineer, ECO 
Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-
238-7743; fax: 781-238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 to supersede AD 2018-18-02, Amendment 39-19381 (83 FR 
53802, October 25, 2018), (``AD 2018-18-02''). AD 2018-18-02 applied to 
certain Austro Engine GmbH model E4 engines and all Austro Engine GmbH 
model E4P engines. The NPRM published in the Federal Register on March 
17, 2020 (85 FR 15079). The NPRM was prompted by reports of 
considerable wear of the timing chain on the affected engines. The NPRM 
proposed to retain the requirements of AD 2018-18-02 for amending 
certain AFMs to limit the use of windmill restarts to emergency 
procedures. The NPRM also proposed to remove the requirement in AD 
2018-18-02 for replacing the timing chain. The FAA is issuing this AD 
to address the unsafe condition on these products.
    The European Union Aviation Safety Agency (EASA), which is the 
Technical Agent for the Member States of the European Community, has 
issued EASA AD 2017-0103R1, dated February 25, 2019 (referred to after 
this as ``the MCAI''), to address the unsafe condition on these 
products. The MCAI states:

    Considerable wear of the timing chain has been detected on some 
engines. This may have been caused by windmilling restarts, which 
are known to cause high stress to the timing chain. This condition, 
if not detected and corrected, could lead to failure of the timing 
chain and consequent engine power loss, possibly resulting in 
reduced control of the aeroplane.
    To address this potential unsafe condition, AE included 
instructions in the engine maintenance manual to periodically 
inspect the condition of the timing chain and, depending on 
findings, to replace the timing chain and the chain wheel. The 
operation manual was updated to allow windmilling restart only as an 
emergency procedure. AE also published Mandatory Service Bulletin 
(MSB) MSB-E4-017/2, providing instructions to replace the timing 
chain for engines with known windmilling restarts, and EASA issued 
AD 2017-0103, requiring replacement of the timing chain for engines 
with known windmilling restarts, and amendment of the applicable 
Aircraft Flight Manual (AFM). Since that [EASA] AD was issued, AE 
revised the applicable Airworthiness Limitation Section (ALS) 
including, among others, the limitation required by that AD. 
Consequently, EASA published AD 2019-0041, requiring accomplishment 
of the actions specified in the ALS.
    For the reason described above, this [EASA] AD is revised 
accordingly, removing the requirement of timing chain replacement. 
This action remain required through EASA AD 2019-0041.

    You may obtain further information by examining the MCAI in the AD 
docket on the internet at https://www.regulations.gov by searching for 
and locating Docket No. FAA-2020-0136.

Comments

    The FAA gave the public the opportunity to participate in 
developing this final rule. The FAA received no comments on the NPRM or 
on the determination of the cost to the public.

Conclusion

    The FAA reviewed the relevant data and determined that air safety 
and the public interest require adopting this final rule as proposed 
except for minor editorial changes. The FAA has determined that these 
minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    The FAA reviewed Diamond Aircraft (DA) Temporary Revision (TR) TR-
M[Auml]M-42-973, dated August 12, 2016, for the Diamond Aircraft 
Industries (DAI) model DA 42 NG Airplane Flight Manual (AFM) and DA TR 
TR-M[Auml]M-62-240, dated August 12, 2016, for the DAI model DA 62 AFM. 
These TRs define the removal of the normal operation procedure for 
windmilling restart for the respective airplanes. This service 
information is reasonably available because the interested parties have 
access to it through their normal course of business or by the means 
identified in the ADDRESSES section.

Costs of Compliance

    The FAA estimates that this AD affects 211 engines installed on 
airplanes of U.S. registry.
    The FAA estimates the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Amend AFM.............................  1 work-hour x $85 per                 $0             $85         $17,935
                                         hour = $85.
----------------------------------------------------------------------------------------------------------------

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.
    The FAA is issuing this rulemaking under the authority described in

[[Page 45077]]

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

    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) Will not affect intrastate aviation in Alaska, 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.

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.  9.13  [Amended]

0
2. The FAA amends Sec.  39.13 by:
0
a. Removing AD 2018-18-02, Amendment 39-19381 (83 FR 53802, October 25, 
2018); and
0
b. Adding the following new airworthiness directive (AD):

2020-15-05 Austro Engine GmbH: Amendment 39-21168; Docket No. FAA-
2020-0136; Project Identifier MCAI-2019-00114-E.

(a) Effective Date

    This AD is effective August 31, 2020.

(b) Affected ADs

    This AD replaces AD 2018-18-02, Amendment 39-19381 (83 FR 53802, 
October 25, 2018).

(c) Applicability

    This AD applies to Austro Engine GmbH model E4 engines with 
serial numbers that have a ``-B'' or ``-C'' configuration and to 
model E4P engines, all serial numbers.

(d) Subject

    Joint Aircraft System Component (JASC) Code 8520, Reciprocating 
Engine Power Section.

(e) Unsafe Condition

    This AD was prompted by reports of considerable wear of the 
timing chain on the affected engines. The FAA is issuing this AD to 
prevent failure of the engine timing chain. The unsafe condition, if 
not addressed, could result in failure of the engine timing chain, 
loss of engine thrust control, and reduced control of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) Within 30 days after the effective date of this AD, under 
the Emergency Procedures chapter, amend the applicable airplane 
flight manual (AFM) by adding the information in Figure 1 to 
paragraph (g)(1) of this AD to limit the use of a windmilling 
restart to only an emergency procedure.

[[Page 45078]]

[GRAPHIC] [TIFF OMITTED] TR27JY20.001

    (2) For affected Austro Engine GmbH model E4 engines installed 
on Diamond Aircraft Industries (DAI) model Diamond Aircraft (DA) 42 
NG and DA 42 M-NG airplanes, and for Austro Engine GmbH model E4P 
engines installed on DAI model DA 62 airplanes, using DA AFM 
Temporary Revision (TR) TR-M[Auml]M-42-973, and DA AFM TR TR-
M[Auml]M-62-240, both dated August 12, 2016, to update the 
applicable AFM is an acceptable method to comply with paragraph 
(g)(1) of this AD.

(h) Credit for Previous Actions

    You may take credit for actions required by paragraph (g) of 
this AD if you amended the applicable AFM for the airplane with the 
affected engine installed before the effective date of this AD in 
accordance with AD 2018-18-02.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, ECO Branch, FAA, has the authority to approve 
AMOCs for this AD, if requested using the procedures found in 14 CFR 
39.19. In accordance with 14 CFR 39.19, send your request to your 
principal inspector or local Flight Standards District Office, as 
appropriate. If sending information directly to the manager of the 
ECO Branch, send it to the attention of the person identified in 
paragraph (j)(1) of this AD. You may email your request to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(j) Related Information

    (1) For more information about this AD, contact Mehdi Lamnyi, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA, 01803; phone: 781-238-7743; fax: 781-238-7199; 
email: [email protected].
    (2) Refer to European Union Aviation Safety Agency (EASA) AD 
2017-0103R1, dated February 25, 2019, for more information. You may 
examine the EASA AD in the AD docket on the internet at https://www.regulations.gov by searching for and locating it in Docket No. 
FAA-2020-0136.

(k) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Diamond Aircraft (DA) Temporary Revision (TR) TR-M[Auml]M-
42-973, dated August 12, 2016, for the Diamond Aircraft Industries 
(DAI) model DA 42 NG Airplane Flight Manual (AFM).
    (ii) DA AFM TR TR-M[Auml]M-62-240, dated August 12, 2016, for 
the DAI model DA 62 AFM.
    (3) For Diamond Aircraft Industries service information 
identified in this AD, contact Diamond Aircraft Industries, N.A., 
Otto-Stra[beta]e 5, A-2700 Wiener Neustadt, A2700, Austria; phone: 
+43 2622 26700; fax: +43 2622 26780; website: 
www.diamondaircraft.com.
    (4) You may view this service information at the FAA, 
Airworthiness Products Section, Operational Safety Branch, 1200 
District Avenue, Burlington, MA, 01803. For information on the 
availability of this material at the FAA, call 781-238-7759.
    (5) You may view this 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, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on July 9, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2020-16127 Filed 7-24-20; 8:45 am]
BILLING CODE 4910-13-P
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