# AD 88-05-03: Rudder Lock Control

- Type: Airworthiness directive
- Status: Current
- Products: BAE Systems HS 748 Series 2A and HS 748 Series 2B
- Effective: April 6, 1988
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-5859
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7317A88E34E4DAFF862569EB006485BA.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/88-05-03

## The airworthiness directive

88-05-03 BRITISH AEROSPACE: Amendment 39-5859. Applies to Model HS 748 series airplanes, certificated in any category.

Compliance required within 60 days after the effective date of this AD, unless already accomplished.

To prevent reduced controllability of the airplane caused by interference between the spring strut rudder lock control and the lower rudder hinge box, accomplish the following:

A. Inspect the spring strut rudder lock control and reorient, if necessary, in accordance with British Aerospace HS-748 Service Bulletin 27/109, dated October 29, 1985.

B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety and which has the concurrence of an FAA Principal Maintenance Inspector, may be used when approved by the Manager, Standardization Branch, FAA, Northwest Mountain Region.

C. Airplanes may be flown to a maintenance base for repairs or replacements in accordance with FAR 21.197 and 21.199.

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

This amendment becomes effective April 6, 1988.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A24EU](https://openairdocs.org/tcds/A24EU): BAE Systems (Operations) Limited; names 2 of 2 models: HS 748 Series 2B, HS 748 Series 2A

## 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: 2 (2 by airframe model, 0 by engine model)
- Makers: British Aerospace 2

Models with the most aircraft:

- [British Aerospace HS-748-2A](https://openairdocs.org/model/british-aerospace-hs-748-2a): 2 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/88-05-03/models.md
Every aircraft: https://openairdocs.org/ad/88-05-03/aircraft.md

Its text cites no advisory circulars or STCs.

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