AD 73-12-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 810 | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 810 Series Airplanes |
Unsafe Condition
Loose or sheared rivets on the airsteps hinged fairing operating link could lead to failure of the fairing link mechanism.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the 3/16 inch diameter rivets on the airsteps hinged fairing operating link for looseness and shearing within 25 hours' time in service after the effective date, and every 500 hours thereafter. Replace loose or sheared rivets with serviceable ones or incorporate Modification G.1843 before further flight.
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Compliance Time
within 25 hours' time in service after the effective date of this AD, unless already accomplished within the last 475 hours' time in service prior to the effective date, and thereafter at intervals not to exceed 500 hours' time in service from the last inspection
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Affected Aircraft
Viscount Model 810 Series Airplanes that do not incorporate Modification G.1843
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Federal Register Abstract
Airsteps Hinged Fairing Link
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_73-12-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-12-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 810 Series Airplanes Subject: Airsteps Hinged Fairing Link Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/01/1973 Make: Vickers-Armstrongs (Aircraft Limited) Model: Viscount 810 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 73-12-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1654 AD NUMBER: 73-12-04 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 810 Series Airplanes ACTION: SUMMARY: DATES: Effective July 1, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-12-04 BRITISH AIRCRAFT CORPORATION: Amdt. 39-1654. Applies to Viscount Model 810 Series Airplanes, which do not incorporate Modification G.1843. Compliance is required as indicated. To detect loose or sheared rivets on the airsteps hinged fairing operating link, accomplish the following: (a) Within the next 25 hours' time in service after the effective date of this AD, unless already accomplished within the last 475 hours' time in service prior to the effective date of this AD, and thereafter at intervals not to exceed 500 hours' time in service from the last inspection, inspect the 3/16 inch diameter rivets on the airsteps hinged fairing operating link for looseness and shearing. (b) If sheared or loose rivets are found during an inspection required by paragraph (a), before further flight, either - (1) Replace the sheared or loose rivets with serviceable rivets of the same type, that are approved for installation in the assembly, and continue to inspect in accordance with paragraph (a); or (2) Incorporate Modification G.1843, dated September 22, 1961, or an FAA- approved equivalent. (c) The repetitive inspections required by this AD may be discontinued after Modification G.1843 is incorporated. This amendment becomes effective July 1, 1973. FOOTER:
Document Text
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AD Final Rules - DRS_73-12-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 73-12-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 810 Series Airplanes Subject: Airsteps Hinged Fairing Link Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/01/1973 Make: Vickers-Armstrongs (Aircraft Limited) Model: 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: 73-12-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1654 AD NUMBER: 73-12-04 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model 810 Series Airplanes ACTION: SUMMARY: DATES: Effective July 1, 1973. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 73-12-04 BRITISH AIRCRAFT CORPORATION: Amdt. 39-1654. Applies to Viscount Model 810 Series Airplanes, which do not incorporate Modification G.1843. Compliance is required as indicated. To detect loose or sheared rivets on the airsteps hinged fairing operating link, accomplish the following: (a) Within the next 25 hours' time in service after the effective date of this AD, unless already accomplished within the last 475 hours' time in service prior to the effective date of this AD, and thereafter at intervals not to exceed 500 hours' time in service from the last inspection, inspect the 3/16 inch diameter rivets on the airsteps hinged fairing operating link for looseness and shearing. (b) If sheared or loose rivets are found during an inspection required by paragraph (a), before further flight, either - (1) Replace the sheared or loose rivets with serviceable rivets of the same type, that are approved for installation in the assembly, and continue to inspect in accordance with paragraph (a); or (2) Incorporate Modification G.1843, dated September 22, 1961, or an FAA- approved equivalent. (c) The repetitive inspections required by this AD may be discontinued after Modification G.1843 is incorporated. This amendment becomes effective July 1, 1973. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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