AD 64-04-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sierra Hotel Aero, Inc. | Navion D | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion E | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion F | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
| aircraft | Sierra Hotel Aero, Inc. | Navion G | Airworthiness Directives; Navion Models D, E, F, and G Aircraft |
Unsafe Condition
Loose rivets in the outer wing panel outboard of Wing Stations 130 and at the front tip tank attachment could lead to structural failure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect wing panels for loose rivets and replace with next larger size or install protruding head rivets where impractical. Install 4 protruding head rivets top and bottom on stringer No. 3 at the front tip tank attachment.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 10 hours' time in service after February 17, 1964 and thereafter within every 100 hours'-time in service
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Sierra Hotel Aero, Inc. Navion D, E, F, and G aircraft, serial numbers NAV-4-2 and up.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Outer Wing Panel
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_64-04-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-04-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Navion Models D, E, F, and G Aircraft Subject: Outer Wing Panel Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Sierra Hotel Aero, Inc. Model: Navion D | Navion E | Navion F | Navion G Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 64-04-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 64-04-05 SUBJECT HEADING: Airworthiness Directives; Navion Models D, E, F, and G Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-04-05 NAVION: Amdt. 684 Part 507 Federal Register February 11, 1964. Applies to All Navion D, E, F, and G Aircraft, Serial Numbers NAV-4-2 and up. Compliance required within 10 hours' time in service after the effective date of this AD and thereafter within every 100 hours'-time in service. (a) Visually inspect wing panel outboard of Wing Stations 130 (outboard edge of flap) for loose rivets. Replace loose rivets with the next larger size. Where this is impractical due to edge distance, interference, etc., install a protruding head rivet of the same diameter located between the loose rivet and the next adjacent rivet. (b) Install 4 AD 4 protruding head rivets both top and bottom skin equally spaced between the last 5 rivets in stringer No. 3. This is at the front tip tank attachment. (c) This inspection is no longer necessary if the skin with flush rivets is replaced with new skin of equivalent strength and protruding head rivets of the original size are used. Other modifications must be approved by a Regional FAA Engineering and Manufacturing Branch. (Navion Service Letter No. 85 covers this same subject.) This directive effective February 17, 1964. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_64-04-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 64-04-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Navion Models D, E, F, and G Aircraft Subject: Outer Wing Panel Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Sierra Hotel Aero, Inc. Model: Navion D | Navion E | Navion F | Navion G 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: 64-04-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 64-04-05 SUBJECT HEADING: Airworthiness Directives; Navion Models D, E, F, and G Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 64-04-05 NAVION: Amdt. 684 Part 507 Federal Register February 11, 1964. Applies to All Navion D, E, F, and G Aircraft, Serial Numbers NAV-4-2 and up. Compliance required within 10 hours' time in service after the effective date of this AD and thereafter within every 100 hours'-time in service. (a) Visually inspect wing panel outboard of Wing Stations 130 (outboard edge of flap) for loose rivets. Replace loose rivets with the next larger size. Where this is impractical due to edge distance, interference, etc., install a protruding head rivet of the same diameter located between the loose rivet and the next adjacent rivet. (b) Install 4 AD 4 protruding head rivets both top and bottom skin equally spaced between the last 5 rivets in stringer No. 3. This is at the front tip tank attachment. (c) This inspection is no longer necessary if the skin with flush rivets is replaced with new skin of equivalent strength and protruding head rivets of the original size are used. Other modifications must be approved by a Regional FAA Engineering and Manufacturing Branch. (Navion Service Letter No. 85 covers this same subject.) This directive effective February 17, 1964. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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