AD 70-15-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky Aircraft Corporation | S-61A | Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61L | Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61N | Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61R | Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters |
Unsafe Condition
Intermittent operation of the Torrington A18702 Series Cabin Heater Blower Assemblies could create potential hazards.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Comply with the Accomplishment Instructions (excluding paragraph D) of Sikorsky Service Bulletin No. 61B55-14 dated 1 April 1970, or later revision, or equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. Compliance time may be increased upon request with substantiation data through an FAA maintenance inspector.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours' time of cabin heater operation after the effective date of this AD unless already accomplished
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Affected Aircraft
Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters incorporating Torrington A18702 Series Cabin Heater Blower Assemblies
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Federal Register Abstract
Cabin Heater Blower
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters Subject: Cabin Heater Blower Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/22/1970 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Corporation Model: S-61A | S-61L | S-61N | S-61R Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1026 AD NUMBER: 70-15-01 SUBJECT HEADING: Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters ACTION: SUMMARY: DATES: Effective July 22, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-15-01 SIKORSKY AIRCRAFT: Amdt. 39-1026. Applies to Sikorsky S-61A/L/N/R Type Helicopters Certificated In All Categories and Incorporating Torrington A18702 Series Cabin Heater Blower Assemblies. Compliance required within the next 25 hours' time of cabin heater operation after the effective date of this AD unless already accomplished. To prevent potential hazards associated with intermittent operation of the cabin heater blower, accomplish the following: (a) Comply with the Accomplishment Instructions (excluding paragraph D) of Sikorsky Service Bulletin No. 61B55-14 dated 1 April 1970, or later revision, or equivalent method both approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (b) Upon request with substantiation 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. This amendment is effective July 22, 1970. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_70-15-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-15-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters Subject: Cabin Heater Blower Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/22/1970 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: 70-15-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1026 AD NUMBER: 70-15-01 SUBJECT HEADING: Airworthiness Directives; Sikorsky S-61A, S-61L, S-61N, and S-61R Helicopters ACTION: SUMMARY: DATES: Effective July 22, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-15-01 SIKORSKY AIRCRAFT: Amdt. 39-1026. Applies to Sikorsky S-61A/L/N/R Type Helicopters Certificated In All Categories and Incorporating Torrington A18702 Series Cabin Heater Blower Assemblies. Compliance required within the next 25 hours' time of cabin heater operation after the effective date of this AD unless already accomplished. To prevent potential hazards associated with intermittent operation of the cabin heater blower, accomplish the following: (a) Comply with the Accomplishment Instructions (excluding paragraph D) of Sikorsky Service Bulletin No. 61B55-14 dated 1 April 1970, or later revision, or equivalent method both approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region. (b) Upon request with substantiation 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. This amendment is effective July 22, 1970. 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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