AD 61-03-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS Model 745D Aircraft |
Unsafe Condition
Failure of the main landing gear ram foot fitting brake attachment flange pre-mod. .2781 standard.
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Required Actions
Inspect brake units P/N AH.50961/2 at next main wheel removal to ensure dowel shoulders P/N AHO.36232 do not protrude above torque plate P/N AH.41181/2. Inspect ram foot fitting for cracks on inside surface of top portion of brake attachment flange using dye penetrant. Replace or repair ram foot fitting if cracks are found between brake attachment holes and blend radius, per Vickers PTL No.225 or FAA approved method.
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Compliance Time
Compliance required as indicated, unless already accomplished.
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Affected Aircraft
All Viscount Model 745D Aircraft with Dunlop 'Inorganic' AH.50961/2 main wheel brake units.
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Federal Register Abstract
Landing Gear Ram Foot Fitting
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_61-03-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-03-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VICKERS Model 745D Aircraft Subject: Landing Gear Ram Foot Fitting Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/03/1961 Make: Vickers-Armstrongs (Aircraft Limited) Model: Viscount 745D Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 61-03-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-03-06 SUBJECT HEADING: Airworthiness Directives; VICKERS Model 745D Aircraft ACTION: SUMMARY: DATES: Effective March 3, 1961. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-03-06 VICKERS: Amdt. 246 Part 507 Federal Register February 2, 1961. Applies to All Viscount Model 745D Aircraft With Dunlop "Inorganic" AH.50961/2 Main Wheel Brake Units. Compliance required as indicated, unless already accomplished. Due to failure of the main landing gear ram foot fitting brake attachment flange Pre-mod. .2781 standard, the following must be accomplished. (a) All brake, units P/N AH.50961/2 in service must be inspected at the next main wheel removal to ensure that shoulders of dowels) P/N AHO.36232) do not protrude above the surface of the torque plate, P/N AH.41181/2. Spare brake units must be inspected prior to installation.* Brake units on which the shoulders of the dowels are found to protrude above the surface of the torque plate are considered unairworthy until reworked in accordance with Vickers PTL No.225 or FAA approved equivalent. (b) When conducting the above inspection also inspect the ram foot fitting for cracks on the inside surface of the top portion of the brake attachment flange, with special attention to the blend radius at the base of the flange, using dye penetrant or FAA approved equivalent. If cracks are found in an area of the flange between the brake attachment holes and the blend radius itself, the ram foot fitting must be replaced or repaired prior to further flight. The defective part may be repaired in accordance with Vickers Mod. D.3000 or FAA approved equivalent provided only one flange is cracked. The ram foot fitting must be replaced if both flanges are cracked. (Vickers Preliminary Technical Leaflet No. 225 and Modification D.3000 cover this subject.) This directive effective March 3, 1961. *Whenever a brake unit is reassembled or initially installed on the ram foot, precautionary measures as detailed in Vickers PTL No. 225 should be observed. FOOTER:
Document Text
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AD Final Rules - DRS_61-03-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 61-03-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VICKERS Model 745D Aircraft Subject: Landing Gear Ram Foot Fitting Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/03/1961 Make: Vickers-Armstrongs (Aircraft Limited) Model: 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: 61-03-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 61-03-06 SUBJECT HEADING: Airworthiness Directives; VICKERS Model 745D Aircraft ACTION: SUMMARY: DATES: Effective March 3, 1961. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 61-03-06 VICKERS: Amdt. 246 Part 507 Federal Register February 2, 1961. Applies to All Viscount Model 745D Aircraft With Dunlop "Inorganic" AH.50961/2 Main Wheel Brake Units. Compliance required as indicated, unless already accomplished. Due to failure of the main landing gear ram foot fitting brake attachment flange Pre-mod. .2781 standard, the following must be accomplished. (a) All brake, units P/N AH.50961/2 in service must be inspected at the next main wheel removal to ensure that shoulders of dowels) P/N AHO.36232) do not protrude above the surface of the torque plate, P/N AH.41181/2. Spare brake units must be inspected prior to installation.* Brake units on which the shoulders of the dowels are found to protrude above the surface of the torque plate are considered unairworthy until reworked in accordance with Vickers PTL No.225 or FAA approved equivalent. (b) When conducting the above inspection also inspect the ram foot fitting for cracks on the inside surface of the top portion of the brake attachment flange, with special attention to the blend radius at the base of the flange, using dye penetrant or FAA approved equivalent. If cracks are found in an area of the flange between the brake attachment holes and the blend radius itself, the ram foot fitting must be replaced or repaired prior to further flight. The defective part may be repaired in accordance with Vickers Mod. D.3000 or FAA approved equivalent provided only one flange is cracked. The ram foot fitting must be replaced if both flanges are cracked. (Vickers Preliminary Technical Leaflet No. 225 and Modification D.3000 cover this subject.) This directive effective March 3, 1961. *Whenever a brake unit is reassembled or initially installed on the ram foot, precautionary measures as detailed in Vickers PTL No. 225 should be observed. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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