- Effective
- June 17, 1967
- Models
- BAC 1-11 200 Series, BAC 1-11 400 Series
- Data sheet
- TCDSA5EU
- Product
- Aircraft · Large airplane
- Amendment
- 39-421
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 24 KB | 1b9fffe5…ce00035 | FAA DRS (API key needed) |
On this page
The airworthiness directive
67-17-02 BRITISH AIRCRAFT: Amdt. 39-421 Part 39 Federal Register May 18, 1967. Applies to Model BAC 1-11 Series Airplanes.
Compliance required within the next 1,000 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent a potential fire hazard in the forward and aft freight compartments, modify the light assemblies, as shown in the table (below), by providing ventilating holes in the light cup assemblies and by replacing the nylon lamp cover with a 5/32 inch toughened glass lamp cover, or FAA-approved equivalent, in accordance with British Aircraft Corporation BAC 1-11 Service Bulletin No. 33-PM 1706, or later ARB-approved issue.
Sta. No. Mod.App. Pre-Mod.BAC P/N Post Mod.BAC P/N 200 Ser.Post Mod.P/N 400 256 200&400 AB 28A 15593 AC 28A 5099 AK 28A 26277 296 200&400 AB 28A 15591 AC 28A 5097 AC 28A 5097 336 200&400 AB 28A 15593 AC 28A 5099 AK 28A 26277 376 200&400 AB 28A 15591 AC 28A 5097 AC 28A 5097 396 200&400 AB 28A 15593 AC 28A 5099 AC 28A 5099 670 200&400 AB 27A 17335 AC 27A 5487 AC 27A 5487 710 200&400 AB 28A 15591 AC 28A 5097 AC 28A 5097 750 200 Ser. AB 27A 17336 AC 27A 14439
750 400 Ser. AB 27A 17335
AC 28A 14439
This directive effective June 17, 1967.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.