2020-25-12: Reciprocating Engine Power Section

The Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec. 39.13 (Amended) \n\n0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive: \n\n2020-25-12 Superior Air Parts, Inc.: Amendment 39-21354; Docket No. FAA-2018-1077; Project Identifier 2018-NE-40-AD. \n\n(a) Effective Date \n\n\n\tThis airworthiness directive (AD) is effective January 15, 2021. \n\n(b) Affected ADs \n\n\n\tNone. \n\n(c) Applicability \n\n\n\tThis AD applies to the reciprocating engine models identified in paragraphs (c)(1) and (2) of this AD with a Superior Air Parts, Inc. (SAP) crankshaft assembly, part number (P/N) SL36500-A20 or P/N SL36500-A31, with serial numbers 82976-01; 82976-02; SP12-0003 through SP12-0089, inclusive; SP13-0034 through SP13-0150, inclusive; or SP14-0151 through SP14-0202, inclusive; installed. \n\t(1) With SAP crankshaft assembly, P/N SL36500-A20, installed: \n\t(i) SAP Model IO-360-series and O-360-series reciprocating engines. \n\t(ii) Lycoming Engines (Lycoming) Model IO-360-B2F, IO-360-L2A, O-360, O-360-A2A, O-360-A2D, O-360-A2E, O-360-A2F, O-360-A2G, O-360- B2A, O-360-C2A, O-360-C2C, O-360-C2D, O-360-C2E, O-360-D2A, and O- 360-D2B reciprocating engines. \n\t(2) With SAP crankshaft assembly, P/N SL36500-A31, installed: \n\t(i) SAP Model IO-360-series and O-360-series reciprocating engines. \n\t(ii) Lycoming Model AEIO-360-H1A, IO-360-B1A, IO-360-B1B, IO- 360-B1D, IO-360-B1E, IO-360-B1F, IO-360-M1A, O-360, O-360-A1A, O- 360-A1C, O-360-A1D, O-360-A2A, O-360-C1A, O-360-C1G, O-360-C1C, O- 360-C1E, and O-360-C1F reciprocating engines. \n\tNote 1 to paragraph (c): This SAP crankshaft assembly may be installed as a replacement part under parts manufacturer approval on the affected Lycoming engines. \n\n(d) Subject \n\n\n\tJoint Aircraft System Component (JASC) Code 8520, Reciprocating Engine Power Section. \n\n(e) Unsafe Condition \n\n\n\tThis AD was prompted by three crankshaft assembly failures that resulted in the loss of engine power and immediate or emergency landings. The FAA is issuing this AD to prevent failure of the crankshaft assembly. The unsafe condition, if not addressed, could result in failure of the engine, in-flight shutdown, and loss of the airplane. \n\n(f) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\n(g) Required Action \n\n\n\tWithin 25 engine operating hours after the effective date of this AD, remove the crankshaft assembly from service. \n\n(h) Special Flight Permit \n\n\n\tA one-time special flight permit may be issued to fly the aircraft to a maintenance facility to perform the actions of this AD with the following limitations: No passengers, visual flight rules (VFR) day conditions only, and avoid areas of known turbulence. \n\n(i) Alternative Methods of Compliance (AMOCs) \n\n\n\t(1) The Manager, Fort Worth ACO 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 Related Information. \n\t(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. \n\n(j) Related Information \n\n\n\tFor more information about this AD, contact Justin Carter, Aviation Safety Engineer, Fort Worth ACO Branch, FAA, 10101 Hillwood Parkway, Fort Worth, TX 76177; phone: (817) 222-5146; fax: (817) 222-5245; email: justin.carter@faa.gov.(k) Material Incorporated by Reference \n\n\n\tNone. \n\n\n\tIssued on December 3, 2020. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2020-27149 Filed 12-10-20; 8:45 am) BILLING CODE 4910-13-P