AD 75-27-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes |
Unsafe Condition
Failure of propeller feathering
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an electrical back-up to the primary manual feathering system in accordance with BAC Bulletin-For-Modification No. FG.2122 (for Viscount Model 810) or D.3245 (for Models 744 and 745D), or an equivalent approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 300 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount Models 744, 745D, and 810 airplanes certificated in all categories
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Propeller Feathering
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_75-27-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-27-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes Subject: Propeller Feathering Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/19/1976 Make: Vickers-Armstrongs (Aircraft Limited) Model: Viscount 744 | Viscount 745D | Viscount 810 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-27-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2474 AD NUMBER: 75-27-02 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes ACTION: SUMMARY: DATES: Effective January 19, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-27-02 BRITISH AIRCRAFT CORPORATION: Amendment 39-2474. Applies to British Aircraft Corporation (BAC) Viscount Models 744, 745D and 810 airplanes, certificated in all categories. Compliance is required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished. To prevent failure of propeller feathering, install an electrical back-up to the primary manual feathering system in accordance with the instructions contained in BAC Bulletin-For- Modification No. FG.2122, dated February 11, 1972, (for Viscount Model 810 airplanes), or BAC Bulletin-For-Modification No. D.3245, dated February 11, 1972 (for Viscount Models 744 and 745D airplanes), as appropriate, or an equivalent of either approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, FAA-American Embassy, APO New York 09667. This amendment becomes effective on January 19, 1976. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_75-27-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-27-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes Subject: Propeller Feathering Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/19/1976 Make: Vickers-Armstrongs (Aircraft Limited) Model: Viscount 744 | Viscount 745D | Viscount 810 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-27-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2474 AD NUMBER: 75-27-02 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Models 744, 745D and 810 Airplanes ACTION: SUMMARY: DATES: Effective January 19, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-27-02 BRITISH AIRCRAFT CORPORATION: Amendment 39-2474. Applies to British Aircraft Corporation (BAC) Viscount Models 744, 745D and 810 airplanes, certificated in all categories. Compliance is required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished. To prevent failure of propeller feathering, install an electrical back-up to the primary manual feathering system in accordance with the instructions contained in BAC Bulletin-For- Modification No. FG.2122, dated February 11, 1972, (for Viscount Model 810 airplanes), or BAC Bulletin-For-Modification No. D.3245, dated February 11, 1972 (for Viscount Models 744 and 745D airplanes), as appropriate, or an equivalent of either approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, FAA-American Embassy, APO New York 09667. This amendment becomes effective on January 19, 1976. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.