AD 78-13-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-31T | Airworthiness Directives; Piper Aircraft Corporation Model PA-31T Airplanes |
Unsafe Condition
Cracks in the weld joining the brake disc to the cup of the main landing gear wheel brakes.
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Required Actions
Visually check the weld for circumferential cracks before the next flight and prior to each subsequent flight until Cleveland P/N 164-39F is installed. Replace the disc with an airworthy part of the same P/N or Cleveland P/N 164-39F if a crack is found. Record each check in the aircraft log or continuous inspection manual.
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Compliance Time
Prior to the next flight
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Affected Aircraft
Piper Aircraft Corporation Model PA-31T airplanes equipped with Cleveland main landing gear wheel assembly, Piper P/N 551775, Cleveland P/N 40-106.
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Federal Register Abstract
Main Landing Gear Wheel Assembly
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_78-13-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-13-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Aircraft Corporation Model PA-31T Airplanes Subject: Main Landing Gear Wheel Assembly Status: Current Citation: This information is not available. Citation Publish Date: 06/29/1978 Effective Date: 06/29/1978 Make: Piper Aircraft Inc. Model: PA-31T Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 78-13-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3248 AD NUMBER: 78-13-06 SUBJECT HEADING: Airworthiness Directives; Piper Aircraft Corporation Model PA-31T Airplanes ACTION: SUMMARY: DATES: Effective June 29, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 78-13-06 PIPER AIRCRAFT CORPORATION: Amendment 39-3248. Applies to PA-31T type aircraft certificated in all categories, equipped with Cleveland main landing gear wheel assembly, Piper P/N 551775, Cleveland P/N 40-106. To detect cracks in the main landing gear wheel brakes, accomplish the following: (a) Prior to the next flight, visually check the weld joining the brake disc to the cup for circumferential cracks. If a crack is found, replace the disc with an airworthy part of the same P/N or with Cleveland brake disc, P/N 164-39F, before further flight. Check may be accomplished by the pilot. (b) Repeat paragraph (a) prior to each flight until Cleveland P/N 164-39F is installed. (c) Record results of each check in aircraft log or continuous inspection manual. This amendment is effective June 29, 1978. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_78-13-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 78-13-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Aircraft Corporation Model PA-31T Airplanes Subject: Main Landing Gear Wheel Assembly Status: Current Citation: This information is not available. Citation Publish Date: 06/29/1978 Effective Date: 06/29/1978 Make: Piper Aircraft Inc. Model: 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: 78-13-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3248 AD NUMBER: 78-13-06 SUBJECT HEADING: Airworthiness Directives; Piper Aircraft Corporation Model PA-31T Airplanes ACTION: SUMMARY: DATES: Effective June 29, 1978. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 78-13-06 PIPER AIRCRAFT CORPORATION: Amendment 39-3248. Applies to PA-31T type aircraft certificated in all categories, equipped with Cleveland main landing gear wheel assembly, Piper P/N 551775, Cleveland P/N 40-106. To detect cracks in the main landing gear wheel brakes, accomplish the following: (a) Prior to the next flight, visually check the weld joining the brake disc to the cup for circumferential cracks. If a crack is found, replace the disc with an airworthy part of the same P/N or with Cleveland brake disc, P/N 164-39F, before further flight. Check may be accomplished by the pilot. (b) Repeat paragraph (a) prior to each flight until Cleveland P/N 164-39F is installed. (c) Record results of each check in aircraft log or continuous inspection manual. This amendment is effective June 29, 1978. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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