AD 78-02-01
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31T | Airworthiness Directives; Piper Models PA-31T and PA-31T1 Airplanes |
| aircraft | Piper Aircraft Inc. | PA-31T1 | Airworthiness Directives; Piper Models PA-31T and PA-31T1 Airplanes |
Unsafe Condition
Failure of the main landing gear actuating cylinder rod end bearing assemblies
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Required Actions
Inspect and replace the main landing gear actuating cylinder rod end bearing assemblies as described in Piper Aircraft Corporation Service Bulletin No. 57A dated August 30, 1978. Equivalent alterations or methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region.
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Compliance Time
within the next fifty hours in service after the effective date of this AD, unless already accomplished
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Affected Aircraft
Piper Models PA-31T (serial numbers 31T-7400002 through 31T-7820077) and PA-31T1 (serial numbers 31T-7804001 through 31T-780-4006)
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Federal Register Abstract
Main Landing Gear
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_78-02-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-02-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31T and PA-31T1 Airplanes Subject: Main Landing Gear Status: Current Citation: This information is not available. Citation Publish Date: 05/07/1979 Effective Date: 05/09/1979 Make: Piper Aircraft Inc. Model: PA-31T | PA-31T1 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 78-02-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3460 AD NUMBER: 78-02-01 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31T and PA-31T1 Airplanes ACTION: SUMMARY: DATES: Effective May 9, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 78-02-01 PIPER AIRCRAFT CORPORATION: Amendment 39-3124 as amended by amendment 39-3460. Applies to model PA-31T airplanes, serial numbers 31T-7400002 through 31T-7820077, and Model PA-31T1 airplanes, serial numbers 31T-7804001 through 31T-780-4006, certificated in all categories. Compliance required within the next fifty hours in service after the effective date of this AD, unless already accomplished. (a) To preclude possible failure of the main landing gear actuating cylinder rod end bearing assemblies, accomplish the inspection and replacement where required, described in the "Instruction" portion of Piper Aircraft Corporation Service Bulletin No. 57A, dated August 30, 1978. (b) Equivalent alterations or methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) Upon submission of substantiating data by an owner or operator, through an FAA maintenance inspector, the compliance time specified in this AD may be adjusted by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. Amendment 39-3124 was effective January 18, 1978. This amendment 39-3460 is effective May 9, 1979. FOOTER:
Document Text
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AD Final Rules - DRS_78-02-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-02-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-31T and PA-31T1 Airplanes Subject: Main Landing Gear Status: Current Citation: This information is not available. Citation Publish Date: 05/07/1979 Effective Date: 05/09/1979 Make: Piper Aircraft Inc. Model: PA-31T | PA-31T1 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: 78-02-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3460 AD NUMBER: 78-02-01 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-31T and PA-31T1 Airplanes ACTION: SUMMARY: DATES: Effective May 9, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 78-02-01 PIPER AIRCRAFT CORPORATION: Amendment 39-3124 as amended by amendment 39-3460. Applies to model PA-31T airplanes, serial numbers 31T-7400002 through 31T-7820077, and Model PA-31T1 airplanes, serial numbers 31T-7804001 through 31T-780-4006, certificated in all categories. Compliance required within the next fifty hours in service after the effective date of this AD, unless already accomplished. (a) To preclude possible failure of the main landing gear actuating cylinder rod end bearing assemblies, accomplish the inspection and replacement where required, described in the "Instruction" portion of Piper Aircraft Corporation Service Bulletin No. 57A, dated August 30, 1978. (b) Equivalent alterations or methods of compliance must be approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) Upon submission of substantiating data by an owner or operator, through an FAA maintenance inspector, the compliance time specified in this AD may be adjusted by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. Amendment 39-3124 was effective January 18, 1978. This amendment 39-3460 is effective May 9, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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