AD 76-24-05

Airworthiness directive · Turbine Disc · Rolls-Royce Limited, Bristol Engines Division Viper Mk. 601-22

Effective
December 14, 1976
Model
Viper Mk. 601-22
Data sheet
TCDSE15EU
Registered aircraft
4 matched by model
Product
Engine
Amendment
39-2781

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

76-24-05 ROLLS-ROYCE (1971) LIMITED: Amendment 39-2781. Applies to Rolls-Royce Bristol Viper Mk 601-22 engines installed, or being held for installation on Hawker Siddeley/Beechcraft Hawker Model DH/BH-125 series airplanes, certificated in all categories.

Compliance is required within the next 150 hours time in service after the effective date of this AD, unless already accomplished.

To prevent possible turbine disc damage, replace the inner exhaust turbine cone assembly in accordance with the "Accomplishment Instructions" of Rolls-Royce Alert Service Bulletin No. 72-A69, dated May 1976, or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, APO New York, N.Y. 09667.

This amendment becomes effective December 14, 1976.

Affected TCDS · 1

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

Registered aircraft · 4

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Aero Vodochody1 aircraft
  • Aerovodochody1 aircraft
  • Bac Jet Provost1 aircraft
  • Soko1 aircraft
By year built
19581973
Registered aircraft by year built: 4 aircraft
19581
19681
19711
19731

By model

Aircraft