- Models
- Viscount 744, 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 | 389524e6…2b84c70 | FAA DRS (API key needed) |
On this page
The airworthiness directive
58-18-03 VICKERS: Applies to All Viscount 700 Series Aircraft.
Compliance required by November 1, 1958.
Following a recent case of damage to Nos. 1 and 2 flaps, beams and telescopic rods caused by a flap chain tensioner barrel becoming completely unscrewed on No. 1 flap chain, Vickers-Armstrongs recommends the wirelocking of flap chain tensioners on Nos. 1, 2 and 3 flaps.
The British Air registration Board considers this mandatory. The FAA concurs with this action and considers compliance therewith mandatory.
(Vickers-Armstrongs Modification D.2554 covers this subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.