# AD 86-21-04: Main Landing Gear Fittings

- Type: Airworthiness directive
- Status: Current
- Products: BAE Systems BAe 146-100A, BAe 146-200A and BAe 146-300A
- Effective: October 20, 1986
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-5419
- Registered aircraft: 8 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1E4CC31CB7DF90FB862569EB006194A6.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/86-21-04

## The airworthiness directive

86-21-04 BRITISH AEROSPACE: Amendment 39-5419. Applies to Model BAe-146 series airplanes, with serial numbers as listed in BAe Service Bulletin 32-18, Revision 1, dated November 28, 1984, certificated in any category. Compliance is required within 60 days after the effective date of this AD. To prevent structural failure of the main landing gear, accomplish the following, unless previously accomplished:

1. Inspect and repair, if necessary, the main landing gear main fittings in accordance with BAe Service Bulletin 32-18, Revision 1, dated November 28, 1984.

2. An alternate means 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, Northwest Mountain Region.

3. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by thisAD.

All persons affected by this directive who have not already received the appropriate service bulletin from the manufacturer may obtain copies upon request to British Aerospace, Inc., Librarian, Box 17414, Dulles International Airport, Washington, D.C. 20041. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.

This Amendment becomes effective October 20, 1986.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A49EU](https://openairdocs.org/tcds/A49EU): BAE Systems (Operations) Limited; names 3 of 6 models: BAe 146-300A, BAe 146-100A, BAe 146-200A

## 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: 8 (8 by airframe model, 0 by engine model)
- Makers: British Aerospace 8

Models with the most aircraft:

- [British Aerospace BAE 146 SERIES 200A](https://openairdocs.org/model/british-aerospace-bae-146-series-200a): 8 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/86-21-04/models.md
Every aircraft: https://openairdocs.org/ad/86-21-04/aircraft.md

Its text cites no advisory circulars or STCs.

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