# AD 92-02-18: Inflight Operation

- Type: Airworthiness directive
- Status: Current
- Products: Honeywell International TFE731-5BR
- Effective: February 10, 1993
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- Amendment: 39-8445
- Docket: 92-ANE-61
- Registered aircraft: 1,157 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4ED0CED3898C46E686256843004C2CF9.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/92-02-18

## The airworthiness directive

92-02-18 GARRETT ENGINE DIVISION, ALLIED-SIGNAL INCORPORATED: Amendment 39-8445. Docket No. 92-ANE-61. Applicability: Garrett Engine Division, Allied-Signal Incorporated, Model TFE731-5BR turbofan engines installed on but not limited to Dassault Aviation Model Mystere Falcon 20 and 900 series airplanes. Compliance: Required prior to further flight, unless accomplished previously. To prevent multiple inflight engine failures, accomplish the following: (a) For engines identified on the data plate as Part Number (P/N) 3075330-2 or P/N 3075370-1, discontinue inflight operation. (b) This AD is an interim directive until approved corrective action is available. (c) 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 Maintenance Inspector, who may add comments and thensend it to the Manager, Los Angeles 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 ACO. (d) 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. (e) This amendment becomes effective on February 10, 1993, to all persons except those persons to whom it was made immediately effective by priority letter AD 92-02-18, issued January 14, 1992, which contained the requirements of this amendment.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E6WE](https://openairdocs.org/tcds/E6WE): Honeywell Aerospace US LLC; names 1 of 23 models: TFE731-5BR

## 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: 1,157 (0 by airframe model, 1,157 by engine model)
- Makers: Raytheon 236, Dassault-Breguet 184, Cessna 138, Learjet 135, Gates Learjet 115, Dassault 111, Israel Aircraft Industries 81, British Aerospace 49, Raytheon Corporate Jets 31, Gates Lear Jet 24

Models with the most aircraft:

- [Garrett TFE731 series](https://openairdocs.org/engine/garrett-tfe731-series): 694 aircraft (engine model)
- [Honeywell TFE-731-SER series](https://openairdocs.org/engine/honeywell-tfe-731-ser-series): 291 aircraft (engine model)
- [Honeywell TFE731-5BR](https://openairdocs.org/engine/honeywell-tfe731-5br): 87 aircraft (engine model)
- [Alliedsign TFE731-5BR](https://openairdocs.org/engine/alliedsign-tfe731-5br): 54 aircraft (engine model)
- [Alliedsign TFE731 series](https://openairdocs.org/engine/alliedsign-tfe731-series): 17 aircraft (engine model)
- [Honeywell TFE-731 series](https://openairdocs.org/engine/honeywell-tfe-731-series): 8 aircraft (engine model)
- [Garrett TFE731-5BR](https://openairdocs.org/engine/garrett-tfe731-5br): 6 aircraft (engine model)

All 7 models: https://openairdocs.org/ad/92-02-18/models.md
Every aircraft: https://openairdocs.org/ad/92-02-18/aircraft.md

Its text cites no advisory circulars or STCs.

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