2021-24-10: Reciprocating Engine Oil System

2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive 2021-09-04, Amendment 39-21517 (86 FR 21637, April 23, 2021); and b. Adding the following new airworthiness directive: 2021-24-10 Austro Engine GmbH: Amendment 39-21831; Docket No. FAA-2021-0781; Project Identifier AD-2021-00775-E. (a) Effective Date This airworthiness directive (AD) is effective December 27, 2021. (b) Affected ADs This AD replaces AD 2021-09-04, Amendment 39-21517 (86 FR 21637, April 23, 2021). (c) Applicability This AD applies to all Austro Engine GmbH E4 and E4P model diesel piston engines. (d) Subject Joint Aircraft System Component (JASC) Code 8550, Reciprocating Engine Oil System. (e) Unsafe Condition This AD was prompted by reports of an oil pump blockage on the E4 model diesel piston engines. The FAA is issuing this AD to prevent failure of the engine lubrication system. The unsafe condition, if not addressed, could result in failure of the engine, in-flight shutdown, and loss of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions For Austro Engine GmbH E4 and E4P model diesel piston engines having an oil pump, part number (P/N) E4A-50-000-BHY, with a serial number (S/N) listed in paragraph 1.2., Engines Affected, of Austro Engine GmbH Mandatory Service Bulletin No. MSB-E4-030/4, Revision No. 4, dated March 30, 2021 (the MSB), within the compliance time specified in Table 1 to paragraph (g) of this AD or before further flight, whichever occurs later: (1) Remove the oil pump, P/N E4A-50-000-BHY, from service and replace with a part eligible for installation using the Accomplishment/Instructions, paragraph 2.2.1 or paragraph 2.2.2, of the MSB, as applicable. (2) Replace the oil filter and engine oil using the Accomplishment/Instructions, paragraph 2.2.1 or paragraph 2.2.2, of the MSB, as applicable. BILLING CODE 4910-13-P ER19NO21.576 BILLING CODE 4910-13-C (h) No Reporting Requirements The reporting requirements in the Accomplishment/Instructions, paragraph 2.2., of the MSB, are not required by this AD. (i) Installation Prohibition After the effective date of this AD, do not install onto any engine an oil pump, P/N E4A-50-000-BHY, with an S/N listed in paragraph 1.2., Engines Affected, of the MSB. (j) Definitions For the purpose of this AD: (1) Group 1 engines are E4 model diesel piston engines in configuration "-A" that are installed on single-engine airplanes. (2) Group 2 engines are E4 model diesel piston engines in configuration "-B" or "-C" and E4P model diesel piston engines that are installed on twin-engine airplanes. (3) A "part eligible for installation" is an oil pump with a P/N and S/N that is not listed in paragraph 1.2., Engines Affected, of the MSB. (k) Credit for Previous Actions You may take credit for replacing the oil pump, oil filter, and engine oil required by paragraph (g) of this AD if you performed these replacements before the effective date of this AD using the Accomplishment/Instructions, paragraph 2.2., of Austro Engine GmbH MSB No. MSB-E4-030, Original Issue, dated February 18, 2021; Revision No. 1, dated February 23, 2021; Revision No. 2, dated March 3, 2021; or Revision No. 3, dated March 18, 2021. (l) 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 certification office, send it to the attention of the person identified in paragraph (m) of this AD. Information may be emailed to: ANE-AD-AMOC@faa.gov. (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. (m) Related Information For more information about this AD, contact Wego Wang, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: (781) 238-7134; fax: (781) 238-7199; email: wego.wang@faa.gov. (n) 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. (3) The following service information was approved for IBR on May 10, 2021 (86 FR 21637, April 23, 2021). (i) Austro Engine GmbH Mandatory Service Bulletin No. MSB-E4-030/4, Revision No. 4, dated March 30, 2021. (ii) [Reserved] (4) For service information identified in this AD, contact Austro Engine GmbH, Rudolf-Diesel-Strasse 11, 2700 Weiner Neustadt, Austria; phone: +43 2622 23000; website: www.austroengine.at. (5) You may view this service information at 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 (817) 222-5110. (6) 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: fr.inspection@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. Issued on November 15, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021-25259 Filed 11-18-21; 8:45 am]BILLING CODE 4910-13-P