- Effective
- October 22, 1971
- Models
- BAC 1-11 200 Series, BAC 1-11 400 Series
- Data sheet
- TCDSA5EU
- Product
- Aircraft · Large airplane
- Amendment
- 39-1298
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 | 19 KB | 3fd87b73…419afcc | FAA DRS (API key needed) |
On this page
The airworthiness directive
71-20-07 BRITISH AIRCRAFT CORPORATION: Amendment 39-1298. Applies to British Aircraft Corporation Model BAC 1-11 200 and 400 series airplanes.
Compliance is required within the next 2,000 hours' time in service after the effective date of this AD, unless already accomplished.
To ensure that the pilot is warned when the landing gear selector lever is not fully engaged in a gated position, modify the selector lever assembly by incorporating a microswitch wired into the existing landing gear indication circuit in accordance with British Aircraft Corporation Model BAC 1-11 Service Bulletin No. 32-PM 4538, dated July 6, 1970, or an FAA- approved equivalent.
This amendment becomes effective October 22, 1971.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.