AD 74-21-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-36-285 | Airworthiness Directives; Piper Model PA-36-285 Airplanes |
Unsafe Condition
The stall warning system may not provide reliable stall warning due to insufficient reliability of the existing lift detector installation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Accomplish the lift detector relocation and modification per Piper Service Bulletin No. 418 or equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Aircraft Inc. Model PA-36-285 airplanes serial numbers 36-7360001 through 36-7460025 certificated in all categories.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Stall Warning System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_74-21-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-21-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-36-285 Airplanes Subject: Stall Warning System Status: Current Citation: This information is not available. Citation Publish Date: 10/03/1974 Effective Date: 10/04/1974 Make: Piper Aircraft Inc. Model: PA-36-285 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 74-21-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1981 AD NUMBER: 74-21-02 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-36-285 Airplanes ACTION: SUMMARY: DATES: Effective October 4, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-21-02 PIPER: Amendment 39-1981. Applies to Piper PA-36-285 airplanes serial numbers 36-7360001 through 36-7460025 certificated in all categories. Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished. To provide a more reliable stall warning system, accomplish the lift detector relocation and modification per Piper Service Bulletin No. 418 or equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. This amendment becomes effective October 4, 1974. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_74-21-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 74-21-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-36-285 Airplanes Subject: Stall Warning System Status: Current Citation: This information is not available. Citation Publish Date: 10/03/1974 Effective Date: 10/04/1974 Make: Piper Aircraft Inc. Model: PA-36-285 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: 74-21-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1981 AD NUMBER: 74-21-02 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-36-285 Airplanes ACTION: SUMMARY: DATES: Effective October 4, 1974. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 74-21-02 PIPER: Amendment 39-1981. Applies to Piper PA-36-285 airplanes serial numbers 36-7360001 through 36-7460025 certificated in all categories. Compliance required within the next 50 hours time in service after the effective date of this AD, unless already accomplished. To provide a more reliable stall warning system, accomplish the lift detector relocation and modification per Piper Service Bulletin No. 418 or equivalent approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration, Southern Region. This amendment becomes effective October 4, 1974. 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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