AD 72-16-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky Aircraft Corporation | S-61A | Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61L | Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61N | Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61R | Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters |
Unsafe Condition
Improper electrical feeder wire gage in the A.C. circuit breaker panel could lead to electrical circuit overload and potential fire hazard.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 25 hours time in service from the AD's effective date, comply with Sikorsky Service Bulletin 61B55-27A, Paragraph 2A or later approved revision. Within 250 hours time in service from the effective date, conduct a conformity inspection per aircraft drawing effectivity list in SB 61B55-27A, Paragraph 2.B(5), inspect alterations affecting the A.C. circuit breaker panel, and ensure feeder wire sizes are adequate. Required changes must be approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 25 hours time in service from the effective date and within 250 hours time in service from the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Sikorsky Models S61A, S61L, S61N, and S61R helicopters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Electrical Feeder Wire Gage
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_72-16-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 72-16-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters Subject: Electrical Feeder Wire Gage Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/10/1972 Make: Sikorsky Aircraft Corporation Model: S-61A | S-61L | S-61N | S-61R Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 72-16-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1496 AD NUMBER: 72-16-06 SUBJECT HEADING: Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters ACTION: SUMMARY: DATES: Effective August 10, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 72-16-06 SIKORSKY: Amendment 39-1496. Applies to all S61A, S61L, S61N and S61R type helicopters. Compliance required as indicated after the effective date of this Airworthiness Directive. To assure the proper electrical feeder wiring gage in the A.C. circuit breaker panel, accomplish the following: 1. Within the next 25 hours time in service from the effective date of the Airworthiness Directive comply with Sikorsky Service Bulletin 61B55-27A, Paragraph 2A or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. 2. Within 250 hours time in service from the effective date of this Airworthiness Directive. (a) Conduct a conformity inspection in accordance with the aircraft drawing effectivity list shown in Sikorsky Service Bulletin 61B55-27A, Paragraph 2.B(5) or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. (b) Conduct an inspection of all alterations performed on, or affecting the A.C. circuit breaker panel and substantiate feeder wire sizes affected are adequate for the alterations performed. Changes required as a result of this Airworthiness Directive must be approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. (Ref. Sikorsky S.B. 61B55-27A dated 9 May 1972 for list of Sikorsky Service Bulletins which modified drawings all listed in Paragraph 2.B(5)). Upon request with substantiating data submitted through an FAA maintenance inspector, the Compliance times specified in this Airworthiness Directive may be increased by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. This amendment is effective 10 August 1972. FOOTER:
Document Text
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AD Final Rules - DRS_72-16-06.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 72-16-06 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters Subject: Electrical Feeder Wire Gage Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/10/1972 Make: Sikorsky Aircraft Corporation Model: S-61A | S-61L | S-61N | S-61R Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 72-16-06 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1496 AD NUMBER: 72-16-06 SUBJECT HEADING: Airworthiness Directives; Sikorsky Models S61A, S61L, S61N, and S61R Helicopters ACTION: SUMMARY: DATES: Effective August 10, 1972. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 72-16-06 SIKORSKY: Amendment 39-1496. Applies to all S61A, S61L, S61N and S61R type helicopters. Compliance required as indicated after the effective date of this Airworthiness Directive. To assure the proper electrical feeder wiring gage in the A.C. circuit breaker panel, accomplish the following: 1. Within the next 25 hours time in service from the effective date of the Airworthiness Directive comply with Sikorsky Service Bulletin 61B55-27A, Paragraph 2A or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. 2. Within 250 hours time in service from the effective date of this Airworthiness Directive. (a) Conduct a conformity inspection in accordance with the aircraft drawing effectivity list shown in Sikorsky Service Bulletin 61B55-27A, Paragraph 2.B(5) or later revision approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. (b) Conduct an inspection of all alterations performed on, or affecting the A.C. circuit breaker panel and substantiate feeder wire sizes affected are adequate for the alterations performed. Changes required as a result of this Airworthiness Directive must be approved by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. (Ref. Sikorsky S.B. 61B55-27A dated 9 May 1972 for list of Sikorsky Service Bulletins which modified drawings all listed in Paragraph 2.B(5)). Upon request with substantiating data submitted through an FAA maintenance inspector, the Compliance times specified in this Airworthiness Directive may be increased by the Chief, Engineering and Manufacturing Branch, FAA, New England Region. This amendment is effective 10 August 1972. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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