AD 78-08-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31 | Airworthiness Directives; Piper Models PA-31 and PA-31-325 Aircraft |
| aircraft | Piper Aircraft Inc. | PA-31-325 | Airworthiness Directives; Piper Models PA-31 and PA-31-325 Aircraft |
Unsafe Condition
The fuel selector lever may become disconnected due to missing parts, including MS24694-S63 screw, MS20365-1032C nut, AN960-10 washer, and ESNA Part Number 59-022-094-0625 roll pin.
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Required Actions
Inspect each fuel selector lever for missing hardware (screw, nut, washer, roll pins), install any missing parts, and inspect lever operation before reinstalling components.
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Compliance Time
within the next 10 hours in service
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Affected Aircraft
Piper Models PA-31 and PA-31-325 NAVAJO, serial numbers 31-7612040 thru 31-7812023, 31-7812025 thru 31-7812035, 31-7812038 thru 31-7812041, and 31-7812043 thru 31-7812047
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Federal Register Abstract
Fuel Selector Lever
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_78-08-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-08-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31 and PA-31-325 Aircraft Subject: Fuel Selector Lever Status: Current Citation: This information is not available. Citation Publish Date: 04/20/1978 Effective Date: 04/25/1978 Make: Piper Aircraft Inc. Model: PA-31 | PA-31-325 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 78-08-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3192 AD NUMBER: 78-08-10 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31 and PA-31-325 Aircraft ACTION: SUMMARY: DATES: Effective April 25, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 78-08-10 PIPER: Amendment 39-3192. Applies to Piper Aircraft Models PA-31 and PA-31-325 NAVAJO, Serial Numbers: 31-7612040 thru 31-7812023 31-7812025 thru 31-7812035 31-7812038 thru 31-7812041 and 31-7812043 thru 31-7812047 To prevent hazards associated with the fuel selector lever becoming disconnected due to missing parts, accomplish the following within the next 10 hours in service: 1. Remove fuel control panel royalite cover and two belly access plates immediately forward of the main spar, exposing the left and right selector lever pivot attachment points. 2. Inspect each lever for the following attachment hardware (per lever): a) One (1) MS24694-S63 screw (Piper Part Number 410 050); b) One (1) MS20365-1032C nut (Piper Part Number 407 807); c) One (1) AN960-10 washer (Piper Part Number 407 564); d) Two (2) ESNA Part Number 59-022-094-0625 roll pin (Piper Part Number 480 696). NOTE: The nut, washer, and roll pins are on the aft side of the fuel control panel and are more easily viewed from the belly access holes. 3. Install any missing hardware. 4. Inspect lever operation and reinstall panel cover and access plates. 5. The aircraft may be flown in accordance with FAR 21.197 to a location where the AD can be accomplished. (Piper Service Bulletin No. 592, February 16, 1978, pertains to this subject.) This amendment is effective April 25, 1978. FOOTER:
Document Text
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AD Final Rules - DRS_78-08-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-08-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31 and PA-31-325 Aircraft Subject: Fuel Selector Lever Status: Current Citation: This information is not available. Citation Publish Date: 04/20/1978 Effective Date: 04/25/1978 Make: Piper Aircraft Inc. Model: PA-31 | PA-31-325 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 78-08-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3192 AD NUMBER: 78-08-10 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31 and PA-31-325 Aircraft ACTION: SUMMARY: DATES: Effective April 25, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 78-08-10 PIPER: Amendment 39-3192. Applies to Piper Aircraft Models PA-31 and PA-31-325 NAVAJO, Serial Numbers: 31-7612040 thru 31-7812023 31-7812025 thru 31-7812035 31-7812038 thru 31-7812041 and 31-7812043 thru 31-7812047 To prevent hazards associated with the fuel selector lever becoming disconnected due to missing parts, accomplish the following within the next 10 hours in service: 1. Remove fuel control panel royalite cover and two belly access plates immediately forward of the main spar, exposing the left and right selector lever pivot attachment points. 2. Inspect each lever for the following attachment hardware (per lever): a) One (1) MS24694-S63 screw (Piper Part Number 410 050); b) One (1) MS20365-1032C nut (Piper Part Number 407 807); c) One (1) AN960-10 washer (Piper Part Number 407 564); d) Two (2) ESNA Part Number 59-022-094-0625 roll pin (Piper Part Number 480 696). NOTE: The nut, washer, and roll pins are on the aft side of the fuel control panel and are more easily viewed from the belly access holes. 3. Install any missing hardware. 4. Inspect lever operation and reinstall panel cover and access plates. 5. The aircraft may be flown in accordance with FAR 21.197 to a location where the AD can be accomplished. (Piper Service Bulletin No. 592, February 16, 1978, pertains to this subject.) This amendment is effective April 25, 1978. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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