AD 76-24-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce Limited, Bristol Engines Division | Viper Mk. 601-22 | ROLLS-ROYCE (1971) LIMITED Models Bristol Viper Mk 601-22 Engines |
Unsafe Condition
Possible turbine disc damage
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Required Actions
Replace the inner exhaust turbine cone assembly in accordance with Rolls-Royce Alert Service Bulletin No. 72-A69 dated May 1976 or an equivalent approved by the FAA.
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Compliance Time
within the next 150 hours time in service after the effective date of this AD
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Affected Aircraft
Rolls-Royce (1971) Limited Bristol Viper Mk 601-22 engines installed or held for installation on Hawker Siddeley/Beechcraft Hawker Model DH/BH-125 series airplanes
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Federal Register Abstract
Turbine Disc
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_76-24-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-24-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: ROLLS-ROYCE (1971) LIMITED Models Bristol Viper Mk 601-22 Engines Subject: Turbine Disc Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/14/1976 Make: Rolls-Royce Limited, Bristol Engines Division Model: Viper Mk. 601-22 Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 76-24-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2781 AD NUMBER: 76-24-05 SUBJECT HEADING: ROLLS-ROYCE (1971) LIMITED Models Bristol Viper Mk 601-22 Engines ACTION: SUMMARY: DATES: Effective December 14, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 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. FOOTER:
Document Text
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AD Final Rules - DRS_76-24-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-24-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: ROLLS-ROYCE (1971) LIMITED Models Bristol Viper Mk 601-22 Engines Subject: Turbine Disc Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/14/1976 Make: Rolls-Royce Limited, Bristol Engines Division Model: Viper Mk. 601-22 Product Type: Engine Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 76-24-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2781 AD NUMBER: 76-24-05 SUBJECT HEADING: ROLLS-ROYCE (1971) LIMITED Models Bristol Viper Mk 601-22 Engines ACTION: SUMMARY: DATES: Effective December 14, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 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. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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