AD 56-26-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Vickers-Armstrongs (Aircraft Limited) | Viscount 745D | Airworthiness Directives; VICKERS-ARMSTRONG Model 745D Aircraft |
Unsafe Condition
Cracks may develop in certain pre-Modification D.1031 engine nacelle attachment brackets.
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Required Actions
Inspect engine nacelle attachment brackets for cracks as recommended in Vickers-Armstrong (Aircraft) Ltd. Preliminary Technical Leaflet No. 111, Issue 1, dated October 19, 1956. Install brackets modified to Mod. D.1031 to eliminate the need for special inspections.
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Compliance Time
Compliance required as indicated.
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Affected Aircraft
Vickers-Armstrongs (Aircraft Limited) Viscount Model 745D Aircraft.
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Federal Register Abstract
Nacelle Side Brackets
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_56-26-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-26-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VICKERS-ARMSTRONG Model 745D Aircraft Subject: Nacelle Side Brackets Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 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(Aircraft Limited) Model: Viscount 745D Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 56-26-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-26-04 SUBJECT HEADING: Airworthiness Directives; VICKERS-ARMSTRONG Model 745D Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-26-04 VICKERS-ARMSTRONG: Applies to All Viscount Model 745D Aircraft. Compliance required as indicated. Service experience has indicated that cracks may develop in certain pre-Modification D.1031 engine nacelle attachment brackets. Accordingly, Vickers-Armstrong (Aircraft) Ltd. issued Preliminary Technical Leaflet No. 111, Issue 1, dated October 19, 1956, covering this subject. The British Air Registration Board considers the inspections recommended therein mandatory, in which the FAA concurs. When brackets to Mod. D.1031 are installed, the special inspections detailed in PTL No. 111 do not apply. This supersedes AD 55-22-05. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_56-26-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 56-26-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VICKERS-ARMSTRONG Model 745D Aircraft Subject: Nacelle Side Brackets Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 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: 56-26-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 56-26-04 SUBJECT HEADING: Airworthiness Directives; VICKERS-ARMSTRONG Model 745D Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 56-26-04 VICKERS-ARMSTRONG: Applies to All Viscount Model 745D Aircraft. Compliance required as indicated. Service experience has indicated that cracks may develop in certain pre-Modification D.1031 engine nacelle attachment brackets. Accordingly, Vickers-Armstrong (Aircraft) Ltd. issued Preliminary Technical Leaflet No. 111, Issue 1, dated October 19, 1956, covering this subject. The British Air Registration Board considers the inspections recommended therein mandatory, in which the FAA concurs. When brackets to Mod. D.1031 are installed, the special inspections detailed in PTL No. 111 do not apply. This supersedes AD 55-22-05. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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