AD 65-28-06

Airworthiness directive · Emergency Inverter Overloading · Vickers-Armstrongs Viscount 810

Effective
January 13, 1966
Model
Viscount 810
Data sheet
TCDSA-814
Product
Aircraft · Large airplane
Amendment
39-165

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

65-28-06 VICKERS: Amdt. 39-165 Part 39 Federal Register December 14, 1965. Applies to Viscount Model 810 Series Airplanes.

Compliance required within the next 500 hours' time in service after the effective date of this AD unless already accomplished.

To prevent overloading of the emergency inverter type 32E01-2-A in the event of main d.c. bus-bar failure, replace the carbon pile voltage regulators AB5859 or 877928 with Bendix Corporation solid state voltage regulator 4B39-15.

(British Aircraft Corporation (Operating) Ltd., (Weybridge Division) Modification Bulletin No. G.2015 (810 Series) and later ARB-approved issues cover this subject.)

This directive effective January 13, 1966.

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.