AD 58-17-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | C-46A | CURTISS-WRIGHT Models C-46 Series Aircraft |
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | C-46D | CURTISS-WRIGHT Models C-46 Series Aircraft |
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | C-46F | CURTISS-WRIGHT Models C-46 Series Aircraft |
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | C-46R | CURTISS-WRIGHT Models C-46 Series Aircraft |
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | C-46E | CURTISS-WRIGHT Models C-46 Series Aircraft |
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | C-46/CW20-T | CURTISS-WRIGHT Models C-46 Series Aircraft |
| aircraft | Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Aircraft Corporation | Skyways International Trading and Transport Co. | Tempo Design Corporation | Super C-46/CW20-T | CURTISS-WRIGHT Models C-46 Series Aircraft |
Unsafe Condition
Recurrent fatigue cracking on the horizontal tail surfaces, particularly in the skin and ribs near the elevator balance weights and elevator hinge cutouts.
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Required Actions
Conduct daily visual external inspections for cracks on horizontal tail surfaces. Perform detailed visual inspections at intervals not exceeding 100 hours' time in service, focusing on areas near balance weights, elevator nose ribs, main spar, and hinge ribs. Repair any cracks according to approved methods before next flight; stop-drilling alone is insufficient.
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Compliance Time
Compliance required as noted.
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Affected Aircraft
Curtiss-Wright Models C-46 Series aircraft including Models C-46R and C-46/CW20-T.
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Federal Register Abstract
Horizontal Tail Surfaces
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_58-17-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 58-17-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CURTISS-WRIGHT Models C-46 Series Aircraft Subject: Horizontal Tail Surfaces Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Air...Show more Model: C-46A | C-46D | C-46F | C-46R | C-46E | C-46/CW20-T | Super C-46/CW20-T 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: 58-17-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 58-17-02 SUBJECT HEADING: CURTISS-WRIGHT Models C-46 Series Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 58-17-02 CURTISS-WRIGHT: Applies to all C-46 Series aircraft including the Models C-46R and C-46/CW20-T aircraft. Compliance required as noted. Due to recurrent fatigue cracking on the horizontal tail surfaces, the following inspections must be accomplished: 1. Conduct a daily visual external inspection of the horizontal tail surfaces for cracks with especial reference to cracks developing in the skin and ribs in the area of the elevator balance weights and the elevator hinge cutouts. 2. A detailed visual inspection of the horizontal tail surfaces must be conducted at intervals not to exceed 100 hours' time in service. Particular attention should be paid to cracks developing in the area of the balance weights on the elevator, elevator nose ribs, elevator main spar, and elevator and stabilizer hinge ribs. 3. Any cracks found must be repaired in accordance with the structural repair manual or other approved repair method prior to the next flight. Stop-drilling of cracks is not considered a repair but may form part of a repair. To facilitate inspection, the horizontal stabilizer may be modified in accordance with L.B. Smith Aircraft Corporation Drawing No. 5.040.02, or approved equivalent. To provide access to the elevator interiors for visual inspection, access holes may be added in the elevator skin as shown on Riddle Airlines Incorporated Service Bulletin No. RSB-C- 46-8. Revised July 11, 1961. FOOTER:
Document Text
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AD Final Rules - DRS_58-17-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 58-17-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: CURTISS-WRIGHT Models C-46 Series Aircraft Subject: Horizontal Tail Surfaces Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Airlift International, Inc. | Curtiss-Wright Corporation | Flying Tiger Line, Inc. | L. B. Smith Air...Show more Model: C-46A | C-46D | C-46F | C-46R | C-46E | C-46/CW20-T | Super C-46/CW20-T 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: 58-17-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 58-17-02 SUBJECT HEADING: CURTISS-WRIGHT Models C-46 Series Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 58-17-02 CURTISS-WRIGHT: Applies to all C-46 Series aircraft including the Models C-46R and C-46/CW20-T aircraft. Compliance required as noted. Due to recurrent fatigue cracking on the horizontal tail surfaces, the following inspections must be accomplished: 1. Conduct a daily visual external inspection of the horizontal tail surfaces for cracks with especial reference to cracks developing in the skin and ribs in the area of the elevator balance weights and the elevator hinge cutouts. 2. A detailed visual inspection of the horizontal tail surfaces must be conducted at intervals not to exceed 100 hours' time in service. Particular attention should be paid to cracks developing in the area of the balance weights on the elevator, elevator nose ribs, elevator main spar, and elevator and stabilizer hinge ribs. 3. Any cracks found must be repaired in accordance with the structural repair manual or other approved repair method prior to the next flight. Stop-drilling of cracks is not considered a repair but may form part of a repair. To facilitate inspection, the horizontal stabilizer may be modified in accordance with L.B. Smith Aircraft Corporation Drawing No. 5.040.02, or approved equivalent. To provide access to the elevator interiors for visual inspection, access holes may be added in the elevator skin as shown on Riddle Airlines Incorporated Service Bulletin No. RSB-C- 46-8. Revised July 11, 1961. FOOTER:
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Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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