# AD 92-02-19 PL: Fuel Manifold Assembly Leak - Type: Airworthiness directive - Status: Historical - Products: Honeywell International TPE331-10, TPE331-10A, TPE331-10AV, TPE331-10B, TPE331-10G, TPE331-10GP, TPE331-10GR, TPE331-10GT, TPE331-10J, TPE331-10N, TPE331-10P, TPE331-10R and 20 more - Superseded by: [AD 93-02-01](https://openairdocs.org/ad/93-02-01) - Product type: Engine - Registered aircraft: 726 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8BE6C6BBC2DC90B386256B870060397D.0001 - DRS record last changed: August 7, 2025 - Page: https://openairdocs.org/ad/92-02-19-PL ## The airworthiness directive 92-02-19 GARRETT ENGINE DIVISION, ALLIED-SIGNAL INCORPORATED: Priority Letter AD 92-02-19, issued on January 14, 1992. Applicability: Garrett Engine Division, Allied-Signal Incorporated Model TPE331-8, -10, -11, and -12 series turboprop engines installed on but not limited to Cessna Model 441 series (Conquest or Conquest II), Construcciones Aeronauticas, S.A. (CASA) 212 series, Twin Commander 695 series, Mitsubishi MU-2B series (Marquise/ Solitaire), Fairchild SA226 and SA227 series (Merlin and Metro), and British Aerospace (BAe) Jetstream 3101 and 3201 series (31 and 32) aircraft. Compliance: Required as indicated, unless previously accomplished. To prevent an engine fire caused by a fuel manifold assembly leak, accomplish the following: (a) Within the next 50 hours time in service after receipt of this Priority Letter AD, remove from service in accordance with the Accomplishment Instructions of Garrett Engine Division, Allied-Signal Alert Service Bulletin (SB) No. TPE331-A73-0198, Revision 1, dated January 10, 1992, Stratoflex fuel manifold assemblies, Part Number 3102469-2, manufactured on the dates listed in the SB, and those fuel manifold assemblies having no identification tag. (b) Prior to further flight replace affected fuel manifold assembly with a serviceable part. (c) Aircraft may be ferried in accordance with the provisions of FAR 21.197 and 21.199 to a base where the Priority Letter AD can be accomplished. (d) Upon submission of substantiating data by an owner or operator through an FAA Inspector (maintenance, avionics, or operations, as appropriate), an alternative method of compliance with the requirements of this AD or adjustments to the compliance times specified in this AD may be approved by the Manager, Los Angeles Aircraft Certification Office, Transport Airplane Directorate, Aircraft Certification Service, FAA, 3229 East Spring Street, Long Beach, California 90806-2425, may approve an equivalent means ofcompliance or adjustment of the compliance schedule which provides an equivalent level of safety. This Priority Letter AD 92-02-19, issued on January 14, 1992, becomes effective immediately upon receipt. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS E4WE](https://openairdocs.org/tcds/E4WE): Honeywell Aerospace US LLC; names 32 of 48 models: TPE331-10GP, TPE331-10UGR, TPE331-10J, TPE331-10UK, TPE331-10GT, TPE331-12B, TPE331-10UG, TPE331-12UA… ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 726 (0 by airframe model, 726 by engine model) - Makers: Cessna 148, Mitsubishi 106, Fairchild 70, Rockwell International 62, Ayres 53, Swearingen 51, Construcciones Aeronauticas 25, Gulfstream AM Corp Comm Div 25, General Atomics Aero Systems 22, Short Brothers 21 Models with the most aircraft: - [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series): 492 aircraft (engine model) - [Honeywell TPE331-SER series](https://openairdocs.org/engine/honeywell-tpe331-ser-series): 28 aircraft (engine model) - [Garrett TPE331-12B](https://openairdocs.org/engine/garrett-tpe331-12b): 19 aircraft (engine model) - [Honeywell TPE331-10 series](https://openairdocs.org/engine/honeywell-tpe331-10-series): 17 aircraft (engine model) - [Honeywell TPE331-12JR](https://openairdocs.org/engine/honeywell-tpe331-12jr): 15 aircraft (engine model) - [Honeywell TPE331-10](https://openairdocs.org/engine/honeywell-tpe331-10): 13 aircraft (engine model) - [Honeywell TPE331-10R](https://openairdocs.org/engine/honeywell-tpe331-10r): 13 aircraft (engine model) - [Garrett TPE331-11U](https://openairdocs.org/engine/garrett-tpe331-11u): 12 aircraft (engine model) - [Honeywell TPE331-10N](https://openairdocs.org/engine/honeywell-tpe331-10n): 11 aircraft (engine model) - [Alliedsign TPE331-12UHR](https://openairdocs.org/engine/alliedsign-tpe331-12uhr): 10 aircraft (engine model) - [Garrett TPE331-10N](https://openairdocs.org/engine/garrett-tpe331-10n): 8 aircraft (engine model) - [Honeywell TPE331-10T](https://openairdocs.org/engine/honeywell-tpe331-10t): 8 aircraft (engine model) - [Honeywell TPE331-11U](https://openairdocs.org/engine/honeywell-tpe331-11u): 8 aircraft (engine model) - [Garrett TPE331-10](https://openairdocs.org/engine/garrett-tpe331-10): 7 aircraft (engine model) - [Garrett TPE331-10 series](https://openairdocs.org/engine/garrett-tpe331-10-series): 7 aircraft (engine model) - [Garrett TPE331-10R](https://openairdocs.org/engine/garrett-tpe331-10r): 5 aircraft (engine model) - [Garrett TPE331-12UHR](https://openairdocs.org/engine/garrett-tpe331-12uhr): 5 aircraft (engine model) - [AiResearch TPE331-8 series](https://openairdocs.org/engine/airesearch-tpe331-8-series): 4 aircraft (engine model) - [Honeywell TPE331-10U](https://openairdocs.org/engine/honeywell-tpe331-10u): 4 aircraft (engine model) - [Alliedsign TPE331-10T](https://openairdocs.org/engine/alliedsign-tpe331-10t): 3 aircraft (engine model) All 45 models: https://openairdocs.org/ad/92-02-19-PL/models.md Every aircraft: https://openairdocs.org/ad/92-02-19-PL/aircraft.md ## Related documents - [AD 93-02-01](https://openairdocs.org/ad/93-02-01): Stratoflex Fuel Manifold Assemblies · Honeywell International TPE331-10, TPE331-10A, TPE331-10B and 21 more. Effective Mar 18, 1993. Supersedes this AD Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.