AD 77-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | HS 748 Series 2A | Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model H.S. 748, 2A Airplanes |
Unsafe Condition
Failure of the propeller feathering system could result in loss of engine thrust and inability to feather the propeller.
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 Hawker Siddeley Aviation Service Bulletin No. 61/18, Modification 4609, as revised April 11, 1974, or an equivalent approved by the FAA.
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Compliance Time
within the next 300 hours time in service after the effective date of this AD
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Affected Aircraft
Hawker Siddeley Aviation Limited H.S. 748 Series 2A airplanes certificated in all categories
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Federal Register Abstract
Propeller Feathering System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-23-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-23-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model H.S. 748, 2A Airplanes Subject: Propeller Feathering System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/07/1977 Make: BAE Systems (Operations) Limited Model: HS 748 Series 2A Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-23-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3072 AD NUMBER: 77-23-02 SUBJECT HEADING: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model H.S. 748, 2A Airplanes ACTION: SUMMARY: DATES: Effective December 7, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-23-02 HAWKER SIDDELEY AVIATION, LIMITED: Amendment 39-3072. Applies to Hawker Siddeley Aviation Limited H.S. 748 Series 2A 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 Hawker Siddeley Aviation Service Bulletin No. 61/18, Modification 4609, as revised April 11, 1974, or an equivalent approved by the Chief, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Region, FAA, c/o American Embassy, APO New York, N.Y. 09667. This amendment becomes effective December 7, 1977. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_77-23-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-23-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model H.S. 748, 2A Airplanes Subject: Propeller Feathering System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 12/07/1977 Make: BAE Systems (Operations) Limited Model: HS 748 Series 2A 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: 77-23-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3072 AD NUMBER: 77-23-02 SUBJECT HEADING: Airworthiness Directives; HAWKER SIDDELEY AVIATION, LIMITED Model H.S. 748, 2A Airplanes ACTION: SUMMARY: DATES: Effective December 7, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-23-02 HAWKER SIDDELEY AVIATION, LIMITED: Amendment 39-3072. Applies to Hawker Siddeley Aviation Limited H.S. 748 Series 2A 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 Hawker Siddeley Aviation Service Bulletin No. 61/18, Modification 4609, as revised April 11, 1974, or an equivalent approved by the Chief, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Region, FAA, c/o American Embassy, APO New York, N.Y. 09667. This amendment becomes effective December 7, 1977. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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