AD 54-15-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-2 Mk.I | Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft |
| aircraft | Viking Air Limited | DHC-2 Mk.II | Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft |
| aircraft | Viking Air Limited | DHC-2 Mk.III | Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft |
Unsafe Condition
Damaged threads on rudder, elevator, and aileron control cable turnbuckles could lead to cable failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect all rudder, elevator, and aileron control cable terminals at specified locations for damaged threads. Replace damaged or defective cables with replacements supplied by de Havilland.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Compliance required by August 30, 1954.
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Affected Aircraft
Viking Air Limited Model DHC-2 Mk.I, DHC-2 Mk.II, DHC-2 Mk.III aircraft, serial numbers 1 to 680 inclusive.
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Federal Register Abstract
Control Cable Turnbuckle Threads
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_54-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 54-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft Subject: Control Cable Turnbuckle Threads Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Viking Air Limited Model: DHC-2 Mk.I | DHC-2 Mk.II | DHC-2 Mk.III Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 54-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 54-15-01 SUBJECT HEADING: Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 54-15-01 de HAVILLAND: Applies to All Model DHC-2 (Beaver) Aircraft, Serial Numbers 1 to 680 Inclusive. Compliance required by August 30, 1954. Inspect all rudder, elevator and aileron control cable terminals for damaged threads at the turnbuckle. Most reported defects have concerned the right-hand threads on turnbuckle terminals but all threaded terminals at turnbuckles should be inspected at the following locations: Control Cable Circuit Location Number of turn-Buckles Ailerons 1. Base of control column. 2 2. Outboard wing inspection panels. 4 Elevators 3. Hatch on underside of rear fuselage. 2 Rudder 4. Rear fuselage interior. 2 Damaged or defective cables must be replaced. If any evidence of defects is found, de Havilland will supply replacement cables. The FAA concurs in this mandatory action by the Canadian Department of Transport. (de Havilland Technical News Sheet Series B, No. 76 dated June 23, 1954, available from de Havilland Aircraft of Canada, Limited, Postal Station "L," Toronto, Canada, covers this same subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_54-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 54-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft Subject: Control Cable Turnbuckle Threads Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Viking Air Limited Model: DHC-2 Mk.I | DHC-2 Mk.II | DHC-2 Mk.III Product Type: Aircraft Product Subtype: Small 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: 54-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 54-15-01 SUBJECT HEADING: Airworthiness Directives; de Havilland Model DHC-2 (Beaver) Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 54-15-01 de HAVILLAND: Applies to All Model DHC-2 (Beaver) Aircraft, Serial Numbers 1 to 680 Inclusive. Compliance required by August 30, 1954. Inspect all rudder, elevator and aileron control cable terminals for damaged threads at the turnbuckle. Most reported defects have concerned the right-hand threads on turnbuckle terminals but all threaded terminals at turnbuckles should be inspected at the following locations: Control Cable Circuit Location Number of turn-Buckles Ailerons 1. Base of control column. 2 2. Outboard wing inspection panels. 4 Elevators 3. Hatch on underside of rear fuselage. 2 Rudder 4. Rear fuselage interior. 2 Damaged or defective cables must be replaced. If any evidence of defects is found, de Havilland will supply replacement cables. The FAA concurs in this mandatory action by the Canadian Department of Transport. (de Havilland Technical News Sheet Series B, No. 76 dated June 23, 1954, available from de Havilland Aircraft of Canada, Limited, Postal Station "L," Toronto, Canada, covers this same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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