# AD 92-01-09: Pipe Joint Couplings - Type: Airworthiness directive - Status: Current - Products: Textron BAe.125 Series 800A, BAe.125 Series 800A (C-29A), BAe.125 Series 800A (U-125), BH.125 Series 600A, HS.125 Series 600A and HS.125 Series 700A - Effective: January 24, 1992 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-8133 - Docket: 91-NM-266-AD - Registered aircraft: 106 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/41E2756912E6B3BA86256A09006B1B6C.0001 - DRS record last changed: January 21, 2026 - Page: https://openairdocs.org/ad/92-01-09 ## The airworthiness directive 92-01-09 BRITISH AEROSPACE: Amendment 39-8133. Docket 91-NM-266-AD. Applicability: Model series airplanes; as listed in British Aerospace Service Bulletin 28-86, dated June 28, 1991; certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent an in-flight fire hazard in the rear equipment bay, accomplish the following: (a) Within 60 days after the effective date of this AD, accomplish a visual inspection for proper alignment of fuel feed pipes at pipe joint couplings, in accordance with British Aerospace Service Bulletin SB 28-86, dated June 28, 1991. If misalignment is detected outside the specifications cited in the service bulletin, prior to further flight, correct the alignment by installing an "O" ring modification and a fuel pipe clamping modification, in accordance with the service bulletin. (b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch. (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 inspection and realignment required by this AD shall be done in accordance with British Aerospace Service Bulletin SB 28-86, dated June 28, 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 British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041-0414. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C. (e) This amendment (39-8133, AD 92-01-09) becomes effective on January 24, 1992. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A3EU](https://openairdocs.org/tcds/A3EU): Textron Aviation Inc.; names 4 of 50 models: HS.125 Series 600A, HS.125 Series 700A, BH.125 Series 600A, BAe.125 Series 800A (U-125) ## 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: 106 (106 by airframe model, 0 by engine model) - Makers: British Aerospace 80, Corporate Jets 8, Raytheon Corporate Jets 8, Hawker Siddeley 7, Raytheon 3 Models with the most aircraft: - [British Aerospace BAE 125 SERIES 800A](https://openairdocs.org/model/british-aerospace-bae-125-series-800a): 61 aircraft (airframe model) - [British Aerospace HS 125-700A](https://openairdocs.org/model/british-aerospace-hs-125-700a): 14 aircraft (airframe model) - [Corporate Jets BAE 125-800A](https://openairdocs.org/model/corporate-jets-bae-125-800a): 8 aircraft (airframe model) - [Raytheon Corporate Jets BAE 125-800A](https://openairdocs.org/model/raytheon-corporate-jets-bae-125-800a): 8 aircraft (airframe model) - [Hawker Siddeley HS.125 SERIES 700A](https://openairdocs.org/model/hawker-siddeley-hs-125-series-700a): 7 aircraft (airframe model) - [British Aerospace BAE 125-800A](https://openairdocs.org/model/british-aerospace-bae-125-800a): 5 aircraft (airframe model) - [Raytheon BAE 125-800A](https://openairdocs.org/model/raytheon-bae-125-800a): 2 aircraft (airframe model) - [Raytheon HS 125-700A](https://openairdocs.org/model/raytheon-hs-125-700a): 1 aircraft (airframe model) All 9 models: https://openairdocs.org/ad/92-01-09/models.md Every aircraft: https://openairdocs.org/ad/92-01-09/aircraft.md 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.