AD 57-08-06

Airworthiness directive · Horizontal Stabilizer · Vickers-Armstrongs Viscount 744 and Viscount 745D

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.

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The airworthiness directive

57-08-06 VICKERS: Applies to Viscount 744 and 745 Type Aircraft.

Compliance required as indicated.

In view of a recent horizontal stabilizer buckling incident compliance with the following is required:

1. Effective immediately the following placard must be installed in full view of the pilot: "TURBULENT AIR PENETRATION-165-KNOTS-FLAPS UP-LANDING GEAR UP." (This placard required regardless of compliance with item 2.)

2. Compliance required by August 31, 1957, with Vickers Modification D.1906. This modification introduces new horizontal stabilizer skin panels of 18 gage, Specification L.73 material between Stations 34.36 and 99.13 in lieu of the 20-gage panels of Specification L.72.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft

No registered aircraft matched this AD’s modelsForeign aircraft aren’t included, and ADs on propellers and appliances aren’t matched by model.