AD 47-50-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | J3C-65S | Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane |
| aircraft | Piper Aircraft Inc. | PA-11 | Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane |
| aircraft | Piper Aircraft Inc. | J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)) | Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane |
Unsafe Condition
Cracks at the ends of the stop bolt slots in the shock struts.
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Required Actions
Inspect shock struts for cracks at the ends of the stop bolt slots. Replace damaged struts. Replace rubber stop discs (P/N 81232-13) with leather discs (P/N 81232-30) or belting leather (11/16-inch diameter x 3/16-inch thick).
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Compliance Time
At the next periodic inspection but not later than March 15, 1948.
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Affected Aircraft
Piper Model J3C-65 Series and PA-11 Airplane serial numbers 11-1 to 11-352, 11-354 to 11-357, 11-359, 11-361 to 11-369, 11-371 to 11-375, 11-377 to 11-385, 11-387, 11-396 to 11-402, 11-413, 11-414, and 11-430.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Shock Strut Cracks
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-50-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-50-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane Subject: Shock Strut Cracks Status: Current Citation: This information is not available. Citation Publish Date: 06/17/1950 Effective Date: Make: Piper Aircraft Inc. Model: J3C-65S | PA-11 | J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)) Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: couldn't find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 47-50-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-50-06 SUBJECT HEADING: Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-50-06 PIPER: Applies to All J3C-65 Series Airplanes Incorporating Landing Gear Approved for 1,220 Pounds Maximum Weight and PA-11 Airplane Serial Numbers 11-1 to 11- 352, Inclusive; 11-354 to 11-357, Inclusive; 11-359, 11-361 to 11-369, Inclusive; 11-371 to 11- 375, Inclusive; 11-377 to 11-385, Inclusive; 11-387, 11-396 to 11-402, Inclusive; 11-413, 11-414 and 11-430. Compliance required at the next periodic inspection but not later than March 15, 1948. Inspect the shock struts for cracks at the ends of the stop bolt slots. Damaged struts shall be properly repaired or replaced. To eliminate possible cracking of the shock struts at the ends of the slots, the rubber stop discs, Piper P/N 81232-13, four per airplane, shall be replaced with four leather discs, Piper P/N 81232-30 or may be made from belting leather, 11/16-inch diameter x 3/16-inch thick. (Piper Service Bulletin No. 103 dated September 29, 1947, covers this same subject.) FOOTER:
Document Text
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AD Final Rules - DRS_47-50-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-50-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane Subject: Shock Strut Cracks Status: Current Citation: This information is not available. Citation Publish Date: 06/17/1950 Effective Date: Make: Piper Aircraft Inc. Model: J3C-65S | PA-11 | J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)) 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: couldn't find issue date AIRWORTHINESS DIRECTIVES FINAL RULES: 47-50-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-50-06 SUBJECT HEADING: Airworthiness Directives; Piper Model J3C-65 Series and PA-11 Airplane ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-50-06 PIPER: Applies to All J3C-65 Series Airplanes Incorporating Landing Gear Approved for 1,220 Pounds Maximum Weight and PA-11 Airplane Serial Numbers 11-1 to 11- 352, Inclusive; 11-354 to 11-357, Inclusive; 11-359, 11-361 to 11-369, Inclusive; 11-371 to 11- 375, Inclusive; 11-377 to 11-385, Inclusive; 11-387, 11-396 to 11-402, Inclusive; 11-413, 11-414 and 11-430. Compliance required at the next periodic inspection but not later than March 15, 1948. Inspect the shock struts for cracks at the ends of the stop bolt slots. Damaged struts shall be properly repaired or replaced. To eliminate possible cracking of the shock struts at the ends of the slots, the rubber stop discs, Piper P/N 81232-13, four per airplane, shall be replaced with four leather discs, Piper P/N 81232-30 or may be made from belting leather, 11/16-inch diameter x 3/16-inch thick. (Piper Service Bulletin No. 103 dated September 29, 1947, covers this same subject.) FOOTER:
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Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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