Airworthiness Directives; Austro Engine GmbH Engines, 15079-15082 [2020-05290]

Download as PDF Federal Register / Vol. 85, No. 52 / Tuesday, March 17, 2020 / Proposed Rules khammond on DSKJM1Z7X2PROD with PROPOSALS agents. CDC is publishing a notice concurrently which also lists the overlap agents under consideration. Proposed select agent removals are as follows: PPQ Select Agents • Peronosclerospora philippinensis (Peronosclerospora sacchari): This agent is only able to survive and reproduce in the host plant and requires specific environmental conditions to become infectious, for which mitigations exist. VS Select Agents • African horse sickness virus: This virus is difficult to successfully disseminate and effectively transmit. An effective vaccine exists. Overlap Select Agents • Bacillus anthracis (Pasteur strain): This agent presents little economic or animal health risk due to low mortality rates, low virulence, and minimal risk of farm-to-farm transmission due to modern production practices (e.g., physical separation of groups of animals on farms and robust quarantine protocols in the face of any infection). • Brucella abortus: This agent presents little economic or animal health risk as it is unlikely to result in large-scale population introduction due to the high concentration of the agent necessary to produce disease as well as modern cattle production processes that limit animal-to-animal transmission routes. There is an efficacious vaccine, moderate immunity status within vulnerable populations, limited farm-tofarm transmission risk, and effective quarantine procedures. • Brucella melitensis: This agent, which primarily affects goats and sheep, is of lesser concern because the low farm-to-farm transmission risk due to modern production practices limits the chance of introduction on a scale large enough to impact domestic production. • Brucella suis: This agent presents a low to moderate animal health risk due to limited farm-to-farm transmission risk as a result of modern production practices which reduce the risk of a large-scale introduction. • Venezuelan equine encephalitis virus: An effective vaccine exists for this agent, which contributes to a high level of immunity within vulnerable populations. Furthermore, large-scale production and efficient dissemination would be difficult due to the virus’ limited ability to persist in the environment outside of an infected animal or mosquito host. At the conclusion of the comment review process, we will publish another document in the Federal Register either republishing the lists of select agents VerDate Sep<11>2014 17:00 Mar 16, 2020 Jkt 250001 and toxins in 7 CFR 331.3, 9 CFR 121.3, and 9 CFR 121.4 or proposing changes to one or more of the lists. This action has been determined to be significant for the purposes of Executive Order 12866 and, therefore, has been reviewed by the Office of Management and Budget. Authority: 7 U.S.C. 8401; 7 CFR 2.22, 2.80, 371.3, and 371.4. Done in Washington, DC, this 25th day of February 2020. Greg Ibach, Under Secretary for Marketing and Regulatory Programs. [FR Doc. 2020–05499 Filed 3–16–20; 8:45 am] BILLING CODE 3410–34–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2020–0136; Project Identifier MCAI–2019–00114–E] RIN 2120–AA64 Airworthiness Directives; Austro Engine GmbH Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to supersede Airworthiness Directive (AD) 2018–18–02, which applies to certain Austro Engine GmbH model E4 engines and to all Austro Engine E4P engines. AD 2018–18–02 requires replacement of the timing chain and amending certain airplane flight manuals (AFMs) to limit the use of windmill restarts only as an emergency procedure. Since the FAA issued AD 2018–18–02, Austro Engine GmbH revised the applicable Airworthiness Limitation Section (ALS) including the limitation required by AD 2018–18–02 for the timing chain subjected to a windmill restart. This proposed AD would require amendment of certain existing AFMs to limit the use of windmill restarts and remove the timing chain replacement requirement that exists in AD 2018–18–02. The timing chain replacement requirement in accordance with new life limits defined in the revised ALS will be proposed in a new and separate AD. The FAA is proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this proposed AD by May 1, 2020. ADDRESSES: You may send comments, using the procedures found in 14 CFR SUMMARY: PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 15079 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12 140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For Austro Engine GmbH service information identified in this NPRM, contact Austro Engine GmbH, RudolfDiesel-Strasse 11, A–2700 Weiner Neustadt, Austria; phone: +43 2622 23000; fax: +43 2622 23000–2711; website: www.austroengine.at. For Diamond Aircraft Industries service information identified in this NPRM, 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, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781–238–7759. 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 NPRM, the mandatory continuing airworthiness information (MCAI), any comments received, and other information. The street address for Docket Operations is listed above. Comments will be available in the AD docket shortly after receipt. 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: Comments Invited The FAA invites you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2020–0136; Project Identifier MCAI–2019–00114–E’’ E:\FR\FM\17MRP1.SGM 17MRP1 15080 Federal Register / Vol. 85, No. 52 / Tuesday, March 17, 2020 / Proposed Rules at the beginning of your comments. The FAA specifically invites comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. The FAA will consider all comments received by the closing date and may amend this NPRM because of those comments. Except for Confidential Business Information as described in the following paragraph, and other information as described in 14 CFR 11.35, the FAA will post all comments received, without change, to https:// www.regulations.gov, including any personal information you provide. The FAA will also post a report summarizing each substantive verbal contact received about this NPRM. Confidential Business Information Confidential Business Information (CBI) is commercial or financial information that is both customarily and actually treated as private by its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public disclosure. If your comments responsive to this NPRM contain commercial or financial information that is customarily treated as private, that you actually treat as private, and that is relevant or responsive to this NPRM, it is important that you clearly designate the submitted comments as CBI. Please mark each page of your submission containing CBI as ‘‘PROPIN.’’ The FAA will treat such marked submissions as confidential under the FOIA, and they will not be placed in the public docket of this NPRM. Submissions containing CBI should be sent to Mehdi Lamnyi, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803. Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking. Discussion The FAA issued AD 2018–18–02, Amendment 39–19381 (83 FR 53802, October 25, 2018), (‘‘AD 2018–18–02’’), for certain Austro Engine GmbH model E4 engines and for all Austro Engine E4P engines. AD 2018–18–02 requires replacement of the timing chain and amending certain AFMs to limit the use of windmill restarts. AD 2018–18–02 resulted from reports of considerable wear of the timing chain on these engines. The FAA issued AD 2018–18– 02 to prevent failure of the engine timing chain. Actions Since AD 2018–18–02 Was Issued Since the FAA issued AD 2018–18– 02, 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. This proposed AD, which supersedes AD 2018–18–02, retains the AFM amendment requirements and removes the timing chain replacement requirement. The timing chain replacement requirement in accordance with new life limits defined in the revised ALS will be mandated by a proposed new and separate AD. 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. 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 NG 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. FAA’s Determination The FAA is proposing this AD because it evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This proposed AD would retain certain requirements of AD 2018–18–02. This proposed AD would retain the requirement for amending certain AFMs to limit the use of windmill restarts to emergency procedures and would remove the requirement for replacing the timing chain. Costs of Compliance The FAA estimates that this proposed AD affects 211 engines installed on airplanes of U.S. registry. The FAA estimates the following costs to comply with this proposed AD: khammond on DSKJM1Z7X2PROD with PROPOSALS ESTIMATED COSTS Action Labor cost Parts cost Cost per product Cost on U.S. operators Amend AFM .................................................... 1 work-hour × $85 per hour = $85 ................. $0 $85 $17,935 VerDate Sep<11>2014 17:00 Mar 16, 2020 Jkt 250001 PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 E:\FR\FM\17MRP1.SGM 17MRP1 Federal Register / Vol. 85, No. 52 / Tuesday, March 17, 2020 / Proposed Rules 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 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 khammond on DSKJM1Z7X2PROD with PROPOSALS 17:00 Mar 16, 2020 List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ The FAA determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 proposed regulation: VerDate Sep<11>2014 (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. Jkt 250001 Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by removing airworthiness directive (AD) 2018–18–02, Amendment 39–19381 (83 FR 53802, October 25, 2018), and adding the following new AD: ■ Austro Engine GmbH: Docket No. FAA– 2020–0136; Project Identifier MCAI– 2019–00114–E. PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 15081 (a) Comments Due Date The FAA must receive comments by May 1, 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. E:\FR\FM\17MRP1.SGM 17MRP1 Federal Register / Vol. 85, No. 52 / Tuesday, March 17, 2020 / Proposed Rules (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 AFM Temporary ¨ M–42–973, and AFM Revision (TR) TR–MA ¨ M–62–240, both dated August 12, TR TR–MA 2016, updating 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 AFM for the affected engine before the effective date of this AD in accordance with AD 2018–18–02. khammond on DSKJM1Z7X2PROD with PROPOSALS (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 17:00 Mar 16, 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. at the FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781–238–7759. (j) Related Information Issued on March 10, 2020. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. (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. (3) For Austro Engine GmbH service information identified in this AD, contact Austro Engine GmbH, Rudolf-Diesel-Strasse 11, A–2700 Weiner Neustadt, Austria; phone: +43 2622 23000; fax: +43 2622 23000–2711; website: www.austroengine.at. For Diamond Aircraft Industries service information identified in this AD, 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 referenced service information PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 [FR Doc. 2020–05290 Filed 3–16–20; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket Number USCG–2019–0317] RIN 1625–AA00 Safety Zones; Northern California and Lake Tahoe Area Annual Fireworks Events, San Francisco, CA Coast Guard, DHS. Notice of proposed rulemaking. AGENCY: ACTION: E:\FR\FM\17MRP1.SGM 17MRP1 EP17MR20.007</GPH> 15082

Agencies

[Federal Register Volume 85, Number 52 (Tuesday, March 17, 2020)]
[Proposed Rules]
[Pages 15079-15082]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-05290]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0136; Project Identifier MCAI-2019-00114-E]
RIN 2120-AA64


Airworthiness Directives; Austro Engine GmbH Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to supersede Airworthiness Directive (AD) 
2018-18-02, which applies to certain Austro Engine GmbH model E4 
engines and to all Austro Engine E4P engines. AD 2018-18-02 requires 
replacement of the timing chain and amending certain airplane flight 
manuals (AFMs) to limit the use of windmill restarts only as an 
emergency procedure. Since the FAA issued AD 2018-18-02, Austro Engine 
GmbH revised the applicable Airworthiness Limitation Section (ALS) 
including the limitation required by AD 2018-18-02 for the timing chain 
subjected to a windmill restart. This proposed AD would require 
amendment of certain existing AFMs to limit the use of windmill 
restarts and remove the timing chain replacement requirement that 
exists in AD 2018-18-02. The timing chain replacement requirement in 
accordance with new life limits defined in the revised ALS will be 
proposed in a new and separate AD. The FAA is proposing this AD to 
address the unsafe condition on these products.

DATES: The FAA must receive comments on this proposed AD by May 1, 
2020.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12 140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For Austro Engine GmbH service information identified in this NPRM, 
contact Austro Engine GmbH, Rudolf-Diesel-Strasse 11, A-2700 Weiner 
Neustadt, Austria; phone: +43 2622 23000; fax: +43 2622 23000-2711; 
website: www.austroengine.at. For Diamond Aircraft Industries service 
information identified in this NPRM, 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, Engine and Propeller Standards Branch, 1200 District Avenue, 
Burlington, MA, 01803. For information on the availability of this 
material at the FAA, call 781-238-7759.

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 NPRM, the mandatory continuing airworthiness information (MCAI), 
any comments received, and other information. The street address for 
Docket Operations is listed above. Comments will be available in the AD 
docket shortly after receipt.

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: 

Comments Invited

    The FAA invites you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2020-0136; 
Project Identifier MCAI-2019-00114-E''

[[Page 15080]]

at the beginning of your comments. The FAA specifically invites 
comments on the overall regulatory, economic, environmental, and energy 
aspects of this NPRM. The FAA will consider all comments received by 
the closing date and may amend this NPRM because of those comments.
    Except for Confidential Business Information as described in the 
following paragraph, and other information as described in 14 CFR 
11.35, the FAA will post all comments received, without change, to 
https://www.regulations.gov, including any personal information you 
provide. The FAA will also post a report summarizing each substantive 
verbal contact received about this NPRM.

Confidential Business Information

    Confidential Business Information (CBI) is commercial or financial 
information that is both customarily and actually treated as private by 
its owner. Under the Freedom of Information Act (FOIA) (5 U.S.C. 552), 
CBI is exempt from public disclosure. If your comments responsive to 
this NPRM contain commercial or financial information that is 
customarily treated as private, that you actually treat as private, and 
that is relevant or responsive to this NPRM, it is important that you 
clearly designate the submitted comments as CBI. Please mark each page 
of your submission containing CBI as ``PROPIN.'' The FAA will treat 
such marked submissions as confidential under the FOIA, and they will 
not be placed in the public docket of this NPRM. Submissions containing 
CBI should be sent to Mehdi Lamnyi, Aerospace Engineer, ECO Branch, 
FAA, 1200 District Avenue, Burlington, MA, 01803. Any commentary that 
the FAA receives which is not specifically designated as CBI will be 
placed in the public docket for this rulemaking.

Discussion

    The FAA issued AD 2018-18-02, Amendment 39-19381 (83 FR 53802, 
October 25, 2018), (``AD 2018-18-02''), for certain Austro Engine GmbH 
model E4 engines and for all Austro Engine E4P engines. AD 2018-18-02 
requires replacement of the timing chain and amending certain AFMs to 
limit the use of windmill restarts. AD 2018-18-02 resulted from reports 
of considerable wear of the timing chain on these engines. The FAA 
issued AD 2018-18-02 to prevent failure of the engine timing chain.

Actions Since AD 2018-18-02 Was Issued

    Since the FAA issued AD 2018-18-02, 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.

    This proposed AD, which supersedes AD 2018-18-02, retains the AFM 
amendment requirements and removes the timing chain replacement 
requirement. The timing chain replacement requirement in accordance 
with new life limits defined in the revised ALS will be mandated by a 
proposed new and separate AD.
    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.

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 NG 
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.

FAA's Determination

    The FAA is proposing this AD because it evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would retain certain requirements of AD 2018-18-
02. This proposed AD would retain the requirement for amending certain 
AFMs to limit the use of windmill restarts to emergency procedures and 
would remove the requirement for replacing the timing chain.

Costs of Compliance

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


[[Page 15081]]

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 
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

    The FAA determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 proposed 
regulation:
    (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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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) 
2018-18-02, Amendment 39-19381 (83 FR 53802, October 25, 2018), and 
adding the following new AD:

Austro Engine GmbH: Docket No. FAA-2020-0136; Project Identifier 
MCAI-2019-00114-E.

(a) Comments Due Date

    The FAA must receive comments by May 1, 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 15082]]

[GRAPHIC] [TIFF OMITTED] TP17MR20.007

    (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 AFM Temporary 
Revision (TR) TR-M[Auml]M-42-973, and AFM TR TR-M[Auml]M-62-240, 
both dated August 12, 2016, updating 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 AFM for the affected engine 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.
    (3) For Austro Engine GmbH service information identified in 
this AD, contact Austro Engine GmbH, Rudolf-Diesel-Strasse 11, A-
2700 Weiner Neustadt, Austria; phone: +43 2622 23000; fax: +43 2622 
23000-2711; website: www.austroengine.at. 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. You may view this 
referenced service information at the FAA, Engine and Propeller 
Standards Branch, 1200 District Avenue, Burlington, MA 01803. For 
information on the availability of this material at the FAA, call 
781-238-7759.

    Issued on March 10, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2020-05290 Filed 3-16-20; 8:45 am]
 BILLING CODE 4910-13-P
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