# AD 93-02-01: Stratoflex Fuel Manifold Assemblies - Type: Airworthiness directive - Status: Current - Products: Honeywell International TPE331-10, TPE331-10A, TPE331-10B, TPE331-10G, TPE331-10GR, TPE331-10J, TPE331-10N, TPE331-10R, TPE331-10U, TPE331-10UA, TPE331-10UF, TPE331-10UG and 12 more - Effective: March 18, 1993 - Supersedes: [AD 92-02-19 PL](https://openairdocs.org/ad/92-02-19-PL) - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-8483 - Docket: 92-ANE-63 - Registered aircraft: 680 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/94F3A565C44EA7D8862568430051AAA5.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/93-02-01 ## The airworthiness directive 93-02-01 GARRETT ENGINE DIVISION, ALLIED-SIGNAL INCORPORATED: Amendment 39-8483. Docket No. 92-ANE-63. 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 accomplished previously. To prevent fuel spraying on hot turbine components, which can result in an engine fire, accomplish the following: (a) Within the next 50 hours time in service after the effective date of this AD, remove from service in accordance with the Accomplishment Instructions of Garrett Engine Division, Allied-Signal Aerospace Company 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 service bulletin, and replace with a serviceable part. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Los Angeles Aircraft Certification Office. The request should be forwarded through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Los Angeles Aircraft Certification Office. NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the Los Angeles Aircraft Certification Office. (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (d) The removal and replacement of the fuel manifold shall be done in accordance with the following service bulletin: DOCUMENT NO. PAGE REVISION DATE Garrett Engine Division, Allied-Signal Aerospace Company SB No. TPE331-A73-0198 Total Pages: 8 1, 5-8 2-4 Revision 1 Original Jan. 10, 1992 Dec. 20, 1991 This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Garrett General Aviation Services Division, Distribution Center, 2340 E. University, Phoenix, Arizona 85034. Copies may be inspected at the FAA, New England Region, Office of the Assistant Chief Counsel, Room 311, 12 New England Executive Park, Burlington, Massachusetts; or at the Office of the Federal Register, 800 North Capitol Street, NW., Suite 700, Washington, DC. (e) This amendment supersedes priority letter AD 92-02-19, issued January 14, 1992. (f) This amendmentbecomes effective on March 18, 1993. ## 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 24 of 48 models: TPE331-10UGR, TPE331-10J, TPE331-10UK, TPE331-12B, TPE331-10UG, TPE331-12UA, TPE331-10UR, TPE331-11UA… ## 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: 680 (0 by airframe model, 680 by engine model) - Makers: Cessna 129, Mitsubishi 105, Fairchild 70, Ayres 53, Rockwell International 50, Swearingen 50, Construcciones Aeronauticas 25, Gulfstream AM Corp Comm Div 23, 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 TPE331-10](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 TPE331-11U](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) - [Honeywell TPE331-10U](https://openairdocs.org/engine/honeywell-tpe331-10u): 4 aircraft (engine model) - [Honeywell TPE331-12UHR](https://openairdocs.org/engine/honeywell-tpe331-12uhr): 3 aircraft (engine model) - [AiResearch TPE331-10](https://openairdocs.org/engine/airesearch-tpe331-10): 2 aircraft (engine model) - [Alliedsign TPE331-10R](https://openairdocs.org/engine/alliedsign-tpe331-10r): 2 aircraft (engine model) - [Garrett TPE331-10U](https://openairdocs.org/engine/garrett-tpe331-10u): 2 aircraft (engine model) All 32 models: https://openairdocs.org/ad/93-02-01/models.md Every aircraft: https://openairdocs.org/ad/93-02-01/aircraft.md ## Related documents - [AD 92-02-19 PL](https://openairdocs.org/ad/92-02-19-PL) (historical): Fuel Manifold Assembly Leak · Honeywell International TPE331-10, TPE331-10A, TPE331-10AV and 29 more. Replaced by 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.