AD 76-04-11
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31 | Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-300 | Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-325 | Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31-350 | Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31P | Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31T | Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes |
Unsafe Condition
Loose bolts attaching the control shaft collar to the control shaft tube could cause possible hazards in flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Alter the attachment of the control shaft collar to the control shaft tube in accordance with Piper Service Letter No. 643 and paragraphs one through eight of Piper Service Bulletin No. 487 or approved equivalent alteration. Equivalent alterations require approval by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next fifty hours in service from the effective date of this AD unless previously accomplished
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Affected Aircraft
Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T with specific serial ranges: PA-31/PA-31-300/PA-31-325 (31-2 through 31-7612009); PA-31-350 (31-5001 through 31-7612018); PA-31P (31P-1 through 31P-7630001 and 31P-7630003); PA-31T (31T-7400002 through 31T-7620002, 31T-7620004, 31T-7620005, 31T-7620007)
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Loose Bolts
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_76-04-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-04-11 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes Subject: Loose Bolts Status: Current Citation: This information is not available. Citation Publish Date: 03/04/1976 Effective Date: 03/05/1976 Make: Piper Aircraft Inc. Model: PA-31 | PA-31-300 | PA-31-325 | PA-31-350 | PA-31P | PA-31T 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: 76-04-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2532 AD NUMBER: 76-04-11 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes ACTION: SUMMARY: DATES: Effective March 5, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 76-04-11 PIPER: Amendment 39-2532. Applies to Models PA-31, PA-31-300, and PA- 31-325, Serial Numbers 31-2 through 31-7612009; Model PA-31-350, Serial Numbers 31-5001 through 31-7612018; Model PA-31P, Serial Numbers 31P-1 through 31P-7630001 and 31P-7630003; Model PA-31T, Serial Numbers 31T-7400002 through 31T-7620002, 31T-7620004, 31T-7620005 and 31T-7620007, certificated in all categories. To prevent possible hazards in flight associated with loose bolts which attach the control shaft collar to the control shaft tube, accomplish the following within the next fifty hours in service from the effective date of this AD unless previously accomplished. (a) Alter the attachment of the control shaft collar to the control shaft tube in accordance with Piper Service Letter No. 643 and the directions contained in paragraphs one through eight of the "Instructions" section of Piper Service Bulletin No. 487 or approved equivalent alteration. Equivalent alterations must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. This amendment is effective March 5, 1976. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_76-04-11.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 76-04-11 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes Subject: Loose Bolts Status: Current Citation: This information is not available. Citation Publish Date: 03/04/1976 Effective Date: 03/05/1976 Make: Piper Aircraft Inc. Model: PA-31 | PA-31-300 | PA-31-325 | PA-31-350 | PA-31P | PA-31T 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: 76-04-11 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2532 AD NUMBER: 76-04-11 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31, PA-31-300, PA-31-325, PA-31-350, PA-31P, and PA-31T Airplanes ACTION: SUMMARY: DATES: Effective March 5, 1976. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 76-04-11 PIPER: Amendment 39-2532. Applies to Models PA-31, PA-31-300, and PA- 31-325, Serial Numbers 31-2 through 31-7612009; Model PA-31-350, Serial Numbers 31-5001 through 31-7612018; Model PA-31P, Serial Numbers 31P-1 through 31P-7630001 and 31P-7630003; Model PA-31T, Serial Numbers 31T-7400002 through 31T-7620002, 31T-7620004, 31T-7620005 and 31T-7620007, certificated in all categories. To prevent possible hazards in flight associated with loose bolts which attach the control shaft collar to the control shaft tube, accomplish the following within the next fifty hours in service from the effective date of this AD unless previously accomplished. (a) Alter the attachment of the control shaft collar to the control shaft tube in accordance with Piper Service Letter No. 643 and the directions contained in paragraphs one through eight of the "Instructions" section of Piper Service Bulletin No. 487 or approved equivalent alteration. Equivalent alterations must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. This amendment is effective March 5, 1976. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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