AD 77-07-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31 | Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-325 | Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-350 | Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes |
Unsafe Condition
Electrical terminals may short against the relay cover.
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Required Actions
Replace the spacer bushings in accordance with Service Bulletin No. 535 dated December 15, 1976, or an equivalent method approved by the FAA. Compliance time may be increased upon request with substantiating data through an FAA Maintenance Inspector.
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Compliance Time
within 100 hours in service
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Affected Aircraft
Piper Models PA-31, PA-31-325, and PA-31-350 with specified serial numbers: PA-31 includes S/N's 31-7612090, 31-7612091, 31-7612092, 31-7612096, 31-7612098, 31-7612101-31-7612105, 31-7612107-31-7612110, and 31-7712002-31-7712006; PA-31-350 includes S/N's 31-7652142-31-7652147, 31-7652149, 31-7652151, 31-7652152, 31-7652154-31-7652162, 31-7652164, 31-7652165, 31-7652167, 31-7652168, 31-7652171-31-7652174, 31-7652176, 31-7752002-31-7752007, 31-7752009-31-7752011, 31-7752013, 31-7752014, and 31-7752017-31-7752026.
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Federal Register Abstract
Electrical Terminals
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-07-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-07-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes Subject: Electrical Terminals Status: Current Citation: This information is not available. Citation Publish Date: 03/31/1977 Effective Date: 04/04/1977 Make: Piper Aircraft Inc. Model: PA-31 | PA-31-325 | PA-31-350 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 77-07-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2860 AD NUMBER: 77-07-03 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes ACTION: SUMMARY: DATES: Effective April 4, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-07-03 PIPER AIRCRAFT CORPORATION: Amendment 39-2860. Applies to models PA-31, PA-31-325, S/N's 31-7612090, 31-7612091, 31-7612092, 31-7612096, 31-7612098, 31-7612101 thru 31-7612105, 31-7612107 thru 31-7612110, and 31-7712002 thru 31-7712006; PA-31-350, S/N's 31-7652142 thru 31-7652147, 31-7652149, 31-7652151, 31-7652152, 31-7652154 thru 31-7652162, 31-7652164, 31-7652165, 31-7652167, 31-7652168, 31-7652171 thru 31-7652174, 31-7652176, 31-7752002 thru 31-7752007, 31-7752009 thru 31-7752011, 31-7752013, 31-7752014 and 31-7752017 thru 31-7752026. Compliance required within 100 hours in service. To prevent electrical terminals form shorting against the relay cover, accomplish the following: (a) Replace the spacer bushings in accordance with the instructions given in Service Bulletin No. 535, dated December 15, 1976, or with an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (b) Upon request, with substantiating data submitted through an FAA Maintenance Inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. This Amendment becomes effective April 4, 1977. FOOTER:
Document Text
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AD Final Rules - DRS_77-07-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-07-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes Subject: Electrical Terminals Status: Current Citation: This information is not available. Citation Publish Date: 03/31/1977 Effective Date: 04/04/1977 Make: Piper Aircraft Inc. Model: PA-31 | PA-31-325 | PA-31-350 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: 77-07-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2860 AD NUMBER: 77-07-03 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31, PA-31-325, and PA-31-350 Airplanes ACTION: SUMMARY: DATES: Effective April 4, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-07-03 PIPER AIRCRAFT CORPORATION: Amendment 39-2860. Applies to models PA-31, PA-31-325, S/N's 31-7612090, 31-7612091, 31-7612092, 31-7612096, 31-7612098, 31-7612101 thru 31-7612105, 31-7612107 thru 31-7612110, and 31-7712002 thru 31-7712006; PA-31-350, S/N's 31-7652142 thru 31-7652147, 31-7652149, 31-7652151, 31-7652152, 31-7652154 thru 31-7652162, 31-7652164, 31-7652165, 31-7652167, 31-7652168, 31-7652171 thru 31-7652174, 31-7652176, 31-7752002 thru 31-7752007, 31-7752009 thru 31-7752011, 31-7752013, 31-7752014 and 31-7752017 thru 31-7752026. Compliance required within 100 hours in service. To prevent electrical terminals form shorting against the relay cover, accomplish the following: (a) Replace the spacer bushings in accordance with the instructions given in Service Bulletin No. 535, dated December 15, 1976, or with an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (b) Upon request, with substantiating data submitted through an FAA Maintenance Inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. This Amendment becomes effective April 4, 1977. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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