2022-10-02: Engine Controls

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive 2002-03-01, Amendment 39-12642 (67 FR 6857, February 14, 2002); and b. Adding the following new airworthiness directive: 2022-10-02 Honeywell International Inc. (Type Certificate previously held by AlliedSignal, Inc. and Textron Lycoming): Amendment 39-22040; Docket No. FAA-2021-1185; Project Identifier AD-2021-00339-E. (a) Effective Date This airworthiness directive (AD) is effective June 28, 2022. (b) Affected ADs This AD replaces AD 2002-03-01, Amendment 39-12642 (67 FR 6857, February 14, 2002). (c) Applicability This AD applies to Honeywell International, Inc. (Type Certificate previously held by AlliedSignal, Inc. and Textron Lycoming) T5311A, T5311B, T5313B, T5317A, T5317A-1, T5317B, T5317BCV, and former military T53-L-11, T53-L-11A, T53-L-11B, T53-L-11C, T53-L-11D, T53-L-11A S/SA, T53-L-13B, T53-L-13B S/SA, T53-L-13B S/SB, and T53-L-703 model turboshaft engines. (d) Subject Joint Aircraft System Component (JASC) Code 7600, Engine Controls. (e) Unsafe Condition This AD was prompted by reports of tachometer drive spur gear failure, resulting in potential engine overspeed, loss of power turbine speed (N2) instrument panel indication, and hard landings. The FAA is issuing this AD to prevent excessive vibrations produced by the reduction gearbox assembly that could cause failure of the tachometer drive spur gear. The unsafe condition, if not addressed, could result in failure of the engine, loss of thrust control, and damage to the aircraft. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Within 100 flight hours (FHs) after the effective date of this AD, or before further flight for a newly installed engine or newly installed reduction gearbox assembly, perform an initial special vibration test of the engine using the service information, as applicable to the engine model, listed in Table 1 to paragraph (g)(1) of this AD. BILLING CODE 4910-13-P ER24MY22.000 BILLING CODE 4910-13-C (2) Thereafter, within the following compliance times, perform repetitive special vibration tests of the engine: (i) For engines that have tachometer drive spur gear part number (P/N) 1-070-062-04 installed, perform a repetitive special vibration test before exceeding 500 FHs since the last special vibration test. (ii) For engines that have tachometer drive spur gear P/N 1-070-062-06 installed, perform a repetitive special vibration test before exceeding 1,000 FHs since the last special vibration test. (3) If, during any special vibration test required by paragraph (g)(1) or (2) of this AD, an engine exceeds the 0.2 inches per second (IPS) limit for any peak RPM/frequency bands, before further flight, remove the reduction gearbox assembly or the engine from service. (h) No Reporting Requirement The reporting requirements in the Accomplishment Instructions, paragraph 3.A. or paragraph 11.F, of the service information, as applicable to the engine model, listed in Table 1 to paragraph (g)(1) of this AD, are not required by this AD. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, Los Angeles 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 paragraph (j) of this AD. Information may be emailed 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. (3) AMOCs approved for AD 2002-03-01 (67 FR 6857, February 14, 2002) are approved as AMOCs for the corresponding provisions of this AD. (j) Related Information For more information about this AD, contact Jeffrey Chang, Aviation Safety Engineer, Los Angeles ACO Branch, FAA, 3960 Paramount Boulevard, Lakewood, CA 90712; phone: (562) 627-5263; fax: (562) 627-5210; email: [email protected]. (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. (3) The following service information was approved for IBR on June 28, 2022. (i) Honeywell Service Bulletin (SB) T53-0147, dated May 29, 2007. (ii) Honeywell Maintenance Manual Temporary Revision No. 165, dated July 29, 2020. (4) The following service information was approved for IBR on March 21, 2002 (67 FR 6857, February 14, 2002). (i) AlliedSignal, Inc. SB T5311A/B-0100, dated January 20, 2000. (ii) AlliedSignal, Inc. SB T5313B/17-0100, dated November 19, 1999. (iii) AlliedSignal, Inc. SB T53-L-11-0100, Revision 2, dated January 20, 2000. (iv) AlliedSignal, Inc. SB T53-L-13B-0100, Revision 2, dated May 11, 1999. (v) AlliedSignal, Inc. SB T53-L-703-0100, Revision 2, dated May 11, 1999. (5) For service information identified in this AD, contact Honeywell International, Inc., 111 South 34th Street, Phoenix, AZ 85034; phone: (800) 601-3099; fax: (602) 365 5577; website: https://myaerospace.honeywell.com/wps/portal. (6) 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. (7) 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 May 5, 2022. Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2022-11059 Filed 5-23-22; 8:45 am]BILLING CODE 4910-13-P