AD 57-13-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23 | Airworthiness Directives; Piper Model PA-23 Aircraft |
Unsafe Condition
Inadvertent retraction of the landing gear due to malfunction of the landing gear hydraulic system, leading to potential landing gear collapse while the aircraft is on the ground.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install an antiretraction device (Piper Kit No. 754140 or equivalent) to prevent start of the retraction cycle.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
by September 1, 1957
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Aircraft Inc. Model PA-23, Serial Numbers 23-1 to 23-729, inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Anti-Retraction Device
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_57-13-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 57-13-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-23 Aircraft Subject: Anti-Retraction Device Status: Current Citation: This information is not available. Citation Publish Date: 01/23/1958 Effective Date: Make: Piper Aircraft Inc. Model: PA-23 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: unable to find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 57-13-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 57-13-08 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-23 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 57-13-08 PIPER: Applies to Model PA-23 Serial Numbers 23-1 to 23-729, Inclusive. Compliance required by September 1, 1957. To prevent inadvertent retraction of the landing gear due to malfunction of the landing gear hydraulic system, install an antiretraction device (Piper Kit No. 754140 or equivalent) that will prevent start of the retraction cycle and consequent landing gear collapse while the aircraft is on the ground. (Piper Service Bulletin No. 145 of December 31, 1956, covers this subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_57-13-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 57-13-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-23 Aircraft Subject: Anti-Retraction Device Status: Current Citation: This information is not available. Citation Publish Date: 01/23/1958 Effective Date: Make: Piper Aircraft Inc. Model: PA-23 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: unable to find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 57-13-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 57-13-08 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-23 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 57-13-08 PIPER: Applies to Model PA-23 Serial Numbers 23-1 to 23-729, Inclusive. Compliance required by September 1, 1957. To prevent inadvertent retraction of the landing gear due to malfunction of the landing gear hydraulic system, install an antiretraction device (Piper Kit No. 754140 or equivalent) that will prevent start of the retraction cycle and consequent landing gear collapse while the aircraft is on the ground. (Piper Service Bulletin No. 145 of December 31, 1956, covers this subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
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