AD 50-23-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-15 | Airworthiness Directives; Piper Models PA-17 and PA-15 Aircraft |
| aircraft | Piper Aircraft Inc. | PA-17 | Airworthiness Directives; Piper Models PA-17 and PA-15 Aircraft |
Unsafe Condition
Cracks or other defects in the small bend radii of landing gear shock strut end fittings, P/N 11806, which may induce failure due to excessive tightening of attachment bolts restricting rotation of the fitting on the bolt.
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Required Actions
Inspect landing gear shock strut end fittings (P/N 11806) for cracks or defects. Replace defective fittings. Ensure attachment bolts are not over-tightened to allow free rotation of the fittings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
July 15, 1950
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Affected Aircraft
Piper Models PA-17 and PA-15 aircraft equipped with PA-17 type landing gear shock struts.
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Federal Register Abstract
Shock Strut Fittings
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_50-23-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 50-23-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-17 and PA-15 Aircraft Subject: Shock Strut Fittings Status: Current Citation: This information is not available. Citation Publish Date: 12/06/1950 Effective Date: Make: Piper Aircraft Inc. Model: PA-15 | PA-17 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 50-23-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 50-23-01 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-17 and PA-15 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 50-23-01 PIPER: Applies to All Models PA-17 Aircraft and PA-15 Aircraft Equipped With PA-17 Type Landing Gear Shock Struts. Compliance required by July 15, 1950. Inspect landing gear shock strut end fittings, P/N 11806 (four per airplane) for cracks or other defects in the small bend radii. Replace fittings found to be defective. Excessive tightening of the attachment bolts may induce failure by restricting rotation of the fitting on the bolt, therefore, the end fittings should be installed free to rotate. (Piper Service Letter No. 129, dated October 28, 1949, covers the same subject.) FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_50-23-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 50-23-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Models PA-17 and PA-15 Aircraft Subject: Shock Strut Fittings Status: Current Citation: This information is not available. Citation Publish Date: 12/06/1950 Effective Date: Make: Piper Aircraft Inc. Model: PA-15 | PA-17 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: 50-23-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 50-23-01 SUBJECT HEADING: Airworthiness Directives; Piper Models PA-17 and PA-15 Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 50-23-01 PIPER: Applies to All Models PA-17 Aircraft and PA-15 Aircraft Equipped With PA-17 Type Landing Gear Shock Struts. Compliance required by July 15, 1950. Inspect landing gear shock strut end fittings, P/N 11806 (four per airplane) for cracks or other defects in the small bend radii. Replace fittings found to be defective. Excessive tightening of the attachment bolts may induce failure by restricting rotation of the fitting on the bolt, therefore, the end fittings should be installed free to rotate. (Piper Service Letter No. 129, dated October 28, 1949, covers the same subject.) FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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