- Model
- Viscount 745D
- Data sheet
- TCDSA-814
- Product
- Aircraft · Large airplane
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 | 90c51d60…76dacbe | FAA DRS (API key needed) |
On this page
The airworthiness directive
59-05-07 VICKERS: Applies to All Viscount Model 745D Which Have PB.10 Automatic Pilot Installed.
Compliance required as soon as possible but not later than December 1, 1959.
In order to permit the pilots to positively disengage the trim servo clutch either by the emergency cutoff buttons on the pilots control wheel, or by the mechanical disconnect lever, a control relay (Plessey P/N 7LZ.107352 or P/N 7CZ.97508/1) should be installed in the A.C. junction box.
The British Air Registration Board considers this mandatory. The FAA concurs with this action and considers compliance therewith mandatory.
(Vickers-Armstrongs Modification Bulletin No. 2703 and associated Modification Leaflet covers this subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.