# AD 86-09-04: Emergency Lighting System

- Type: Airworthiness directive
- Status: Current
- Products: BAE Systems HS 748 Series 2A and HS 748 Series 2B
- Effective: May 26, 1986
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-5290
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E0BE70AD991F101F862569EB005F474E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/86-09-04

## The airworthiness directive

86-09-04 BRITISH AEROSPACE AIRCRAFT GROUP: Amendment 39-5290. Applies to Model HS 748, constructor numbers 1793, 1794, and 1795 (Mod 402); and 1796 (Mod 400); and to any other airplanes which incorporate Modification 6953, certificated in any category. Compliance is required within 60 days after the effective date of this AD. To prevent the accidental disarming of the emergency lighting system, accomplish the following, unless previously accomplished:

1. Modify the emergency lighting system in accordance with BAe HS 748 Service Bulletin 33/29, dated April 2, 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 this AD.

All persons affected by this directive who have not already received the appropriate service document 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 May 26, 1986.

## 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/86-09-04/models.md
Every aircraft: https://openairdocs.org/ad/86-09-04/aircraft.md

Its text cites no advisory circulars or STCs.

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