AD 65-19-05
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 744 | Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes |
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes |
Unsafe Condition
Cracks in the main landing gear top yokes of DTD 683 aluminum alloy can lead to failure.
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Required Actions
Within 25 landings after the effective date, visually inspect top yokes for cracks per BAC PTL No. 255. Repeat inspections at intervals not exceeding 25 landings until modified. If cracks found, repair or replace within five landings and reinspect at intervals not exceeding 100 landings. Install BAC Modification D.3154 or equivalent to discontinue inspections.
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Compliance Time
Within the next 25 landings after the effective date of this AD
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount Models 744 and 745D Series airplanes equipped with main landing gear top yokes of DTD 683 aluminum alloy.
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Federal Register Abstract
Main Landing Gear Top Yokes
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_65-19-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-19-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes Subject: Main Landing Gear Top Yokes Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/05/1965 Make: Vickers-Armstrongs (Aircraft Limited) Model: Viscount 744 | Viscount 745D Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 65-19-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-127 AD NUMBER: 65-19-05 SUBJECT HEADING: Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes ACTION: SUMMARY: DATES: Effective September 5, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-19-05 VICKERS: Amdt. 39-127 Part 39 Federal Register August 26, 1965. Applies to Viscount Models 744 and 745D Series Airplanes Equipped with Main Landing Gear Top Yokes of DTD 683 Aluminum Alloy. Compliance required as indicated. To prevent further failures of the main landing gear top yokes, accomplish the following: (a) Within the next 25 landings after the effective date of this AD, visually inspect the top yoke for cracks in accordance with British Aircraft Corporation (BAC) Ltd. Preliminary Technical Leaflet (PTL) No. 255 (700 Series) or later ARB-approved issue and thereafter at intervals not to exceed 25 landings from the last inspection until modified in accordance with (d) of this AD. (b) If cracks are found, within the next five landings (1) Repair the yoke in accordance with Modification D.3154, part (b) or (d) as applicable or an equivalent approved by the Chief, Aircraft Certification Staff, European Region, and reinspect at intervals not to exceed 100 landings in accordance with PTL No. 255 or later ARB-approved issue until modified in accordance with (d) of this AD; or (2) Replace the yoke. (c) Replace within the next five landings any yoke found with a propagating crack during the inspection required by (b)(1). (d) The repetitive inspections required by (a) and (b)(1) may be discontinued after installation of BAC Modification D.3154 part (a) or (c), as applicable, a replacement yoke of L.65 material in accordance with BAC Modification D.1468, or an equivalent approved by the Chief, Aircraft Certification Staff, European Region. (e) For the purpose of complying with this AD, subject to acceptance by the assigned FAA maintenance inspector, the number of landings may be determined by dividing each airplane's hours' time in service by the operator's fleet average time from takeoff to landing for the airplane type. This directive effective September 5, 1965. FOOTER:
Document Text
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AD Final Rules - DRS_65-19-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-19-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes Subject: Main Landing Gear Top Yokes Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/05/1965 Make: Vickers-Armstrongs (Aircraft Limited) Model: Viscount 744 | Viscount 745D 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: 65-19-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-127 AD NUMBER: 65-19-05 SUBJECT HEADING: Airworthiness Directives; VICKERS Models 744 and 745D Series Airplanes ACTION: SUMMARY: DATES: Effective September 5, 1965. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-19-05 VICKERS: Amdt. 39-127 Part 39 Federal Register August 26, 1965. Applies to Viscount Models 744 and 745D Series Airplanes Equipped with Main Landing Gear Top Yokes of DTD 683 Aluminum Alloy. Compliance required as indicated. To prevent further failures of the main landing gear top yokes, accomplish the following: (a) Within the next 25 landings after the effective date of this AD, visually inspect the top yoke for cracks in accordance with British Aircraft Corporation (BAC) Ltd. Preliminary Technical Leaflet (PTL) No. 255 (700 Series) or later ARB-approved issue and thereafter at intervals not to exceed 25 landings from the last inspection until modified in accordance with (d) of this AD. (b) If cracks are found, within the next five landings (1) Repair the yoke in accordance with Modification D.3154, part (b) or (d) as applicable or an equivalent approved by the Chief, Aircraft Certification Staff, European Region, and reinspect at intervals not to exceed 100 landings in accordance with PTL No. 255 or later ARB-approved issue until modified in accordance with (d) of this AD; or (2) Replace the yoke. (c) Replace within the next five landings any yoke found with a propagating crack during the inspection required by (b)(1). (d) The repetitive inspections required by (a) and (b)(1) may be discontinued after installation of BAC Modification D.3154 part (a) or (c), as applicable, a replacement yoke of L.65 material in accordance with BAC Modification D.1468, or an equivalent approved by the Chief, Aircraft Certification Staff, European Region. (e) For the purpose of complying with this AD, subject to acceptance by the assigned FAA maintenance inspector, the number of landings may be determined by dividing each airplane's hours' time in service by the operator's fleet average time from takeoff to landing for the airplane type. This directive effective September 5, 1965. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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