AD 76-11-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31P | Airworthiness Directives; Piper Model PA-31P Aircraft |
Unsafe Condition
The alternator switch bus bar link may short to the adjacent fuselage bulkhead, creating a hazard.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Alter the existing switch bus bar link insulation per Service Bulletin No. 473 dated March 24, 1976, or an approved alternate method. Compliance time may be increased upon request with FAA approval.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 hours in service after the effective date of this AD unless already accomplished
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Affected Aircraft
Piper Aircraft Inc. Model PA-31P, serial numbers 31P-1 to 31P-7630001 inclusive, and 31P-7630003
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Federal Register Abstract
Switch Bus Bar Link
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_76-11-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-11-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-31P Aircraft Subject: Switch Bus Bar Link Status: Current Citation: This information is not available. Citation Publish Date: 06/01/1976 Effective Date: 06/04/1976 Make: Piper Aircraft Inc. Model: PA-31P Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 76-11-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2629 AD NUMBER: 76-11-06 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-31P Aircraft ACTION: SUMMARY: DATES: Effective June 4, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 76-11-06 PIPER: Amendment 39-2629. Applies to Model PA-31P, S/Ns 31P-1 to 31P-7630001 inclusive, and 31P-7630003. Compliance required within the next 100 hours in service after the effective date of this AD unless already accomplished. To prevent the hazards associated with the possibility of the alternator switch bus bar link shorting to the adjacent fuselage bulkhead, accomplish the following: (a) Alter the existing switch bus bar link insulation in accordance with the "Instructions" paragraph in Service Bulletin No. 473, dated March 24, 1976, or with an approved alternate method. (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 who must also approve any alternate alteration. This amendment is effective June 4, 1976. FOOTER:
Document Text
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AD Final Rules - DRS_76-11-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-11-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-31P Aircraft Subject: Switch Bus Bar Link Status: Current Citation: This information is not available. Citation Publish Date: 06/01/1976 Effective Date: 06/04/1976 Make: Piper Aircraft Inc. Model: PA-31P 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: 76-11-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2629 AD NUMBER: 76-11-06 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-31P Aircraft ACTION: SUMMARY: DATES: Effective June 4, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 76-11-06 PIPER: Amendment 39-2629. Applies to Model PA-31P, S/Ns 31P-1 to 31P-7630001 inclusive, and 31P-7630003. Compliance required within the next 100 hours in service after the effective date of this AD unless already accomplished. To prevent the hazards associated with the possibility of the alternator switch bus bar link shorting to the adjacent fuselage bulkhead, accomplish the following: (a) Alter the existing switch bus bar link insulation in accordance with the "Instructions" paragraph in Service Bulletin No. 473, dated March 24, 1976, or with an approved alternate method. (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 who must also approve any alternate alteration. This amendment is effective June 4, 1976. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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