AD 77-01-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piper Aircraft Inc. | PA-23-250 | Airworthiness Directives; Piper Model PA-23-250 Aircraft |
| aircraft | Piper Aircraft Inc. | PA-23-250 (Navy UO-1) | Airworthiness Directives; Piper Model PA-23-250 Aircraft |
Unsafe Condition
Chaffing of the wing tip mounted strobe NAV light wire and possible electrical arcing to the adjacent wing tip rib.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Apply additional insulating material to the applicable electric wiring in accordance with Service Bulletin No. 486 dated October 11, 1976, or an approved alternate method. Compliance time may be increased upon request with substantiating data through an FAA maintenance inspector, subject to approval by the Chief, Engineering and Manufacturing Branch, FAA Eastern 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 unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Piper Aircraft Inc. Model PA-23-250 (6 place) Aztec S/Ns 27-7654001 to 27-7654049 inclusive, 27-7654051 to 27-7654099 inclusive, 27-7654101 to 27-7654116 inclusive, 27-7654118 to 27-7654131 inclusive, 27-7654133 to 27-7654146 inclusive, 27-7654148 to 27-7654160 inclusive, 27-7654162 to 27-7654164 inclusive, and 27-7654166 to 27-7654171 inclusive.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Strobe NAV Light Wire
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-01-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-01-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-23-250 Aircraft Subject: Strobe NAV Light Wire Status: Current Citation: This information is not available. Citation Publish Date: 01/10/1977 Effective Date: 01/13/1977 Make: Piper Aircraft Inc. Model: PA-23-250 | PA-23-250 (Navy UO-1) Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: AIR-700: Compliance & Airworthiness Division Office of Primary Responsibility: AIR-720: Operational Safety Branch CFR Part Reference: Part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: 77-01-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2803 AD NUMBER: 77-01-05 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-23-250 Aircraft ACTION: SUMMARY: DATES: Effective January 13, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-01-05 PIPER: Amendment 39-2803. Applies to model PA-23-250 (6 place) Aztec "F", S/Ns 27-7654001 to 27-7654049 inclusive, 27-7654051 to 27-7654099 inclusive, 27- 7654101 to 27-7654116 inclusive, 27-7654118 to 27-7654131 inclusive, 27-7654133 to 27- 7654146 inclusive, 27-7654148 to 27-7654160 inclusive, 27-7654162 to 27-7654164 inclusive, and 27-7654166 to 27-7654171 inclusive. Compliance required within the next 50 hours' time in service after the effective date of this AD unless already accomplished. To prevent the hazards associated with the chaffing of the wing tip mounted strobe NAV light wire and the possible electrical arcing to the adjacent wing tip rib, accomplish the following: (a) Apply additional insulating material to the applicable electric wiring in accordance with the instructions given in Service Bulletin No. 486, dated October 11, 1976, or with an approved alternate method. (b) Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, who must also approve alternate methods of compliance. (Piper Service Bulletin No. 486, dated October 11, 1976, covers this subject.) This amendment is effective January 13, 1977. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_77-01-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-01-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Piper Model PA-23-250 Aircraft Subject: Strobe NAV Light Wire Status: Current Citation: This information is not available. Citation Publish Date: 01/10/1977 Effective Date: 01/13/1977 Make: Piper Aircraft Inc. Model: PA-23-250 | PA-23-250 (Navy UO-1) 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: 77-01-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2803 AD NUMBER: 77-01-05 SUBJECT HEADING: Airworthiness Directives; Piper Model PA-23-250 Aircraft ACTION: SUMMARY: DATES: Effective January 13, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-01-05 PIPER: Amendment 39-2803. Applies to model PA-23-250 (6 place) Aztec "F", S/Ns 27-7654001 to 27-7654049 inclusive, 27-7654051 to 27-7654099 inclusive, 27- 7654101 to 27-7654116 inclusive, 27-7654118 to 27-7654131 inclusive, 27-7654133 to 27- 7654146 inclusive, 27-7654148 to 27-7654160 inclusive, 27-7654162 to 27-7654164 inclusive, and 27-7654166 to 27-7654171 inclusive. Compliance required within the next 50 hours' time in service after the effective date of this AD unless already accomplished. To prevent the hazards associated with the chaffing of the wing tip mounted strobe NAV light wire and the possible electrical arcing to the adjacent wing tip rib, accomplish the following: (a) Apply additional insulating material to the applicable electric wiring in accordance with the instructions given in Service Bulletin No. 486, dated October 11, 1976, or with an approved alternate method. (b) Upon request with substantiating data submitted through an FAA maintenance inspector, the compliance time specified in this AD may be increased by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region, who must also approve alternate methods of compliance. (Piper Service Bulletin No. 486, dated October 11, 1976, covers this subject.) This amendment is effective January 13, 1977. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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