AD 66-13-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Columbia Helicopters, Inc. | 107-II | Airworthiness Directives; VERTOL Model 107-II Helicopters |
Unsafe Condition
Simultaneous engine false fire warnings caused by electrical wiring system malfunction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace wafer test switch P/N 1-1917-1N5 with switch P/N 1-1919-2N5, revise wiring arrangement per Vertol Service Bulletins 107-219 and 107-219A, and functionally test the engine fire detection system as described in Vertol 107-2 Maintenance Manual, Chapter 16.
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Compliance Time
within the next 130 hours' time in service after the effective date of this AD
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Affected Aircraft
VERTOL Model 107-II Helicopters
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Federal Register Abstract
Fire Detection System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_66-13-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 66-13-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VERTOL Model 107-II Helicopters Subject: Fire Detection System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/18/1966 Make: Columbia Helicopters, Inc. Model: 107-II Product Type: Aircraft Product Subtype: Rotorcraft Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 66-13-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-240 AD NUMBER: 66-13-05 SUBJECT HEADING: Airworthiness Directives; VERTOL Model 107-II Helicopters ACTION: SUMMARY: DATES: Effective June 18, 1966. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 66-13-05 VERTOL: Amdt. 39-240 Part 39 Federal Register May 19, 1966. Applies to Model 107-II Helicopters. Compliance required within the next 130 hours' time in service after the effective date of this AD, unless already accomplished. To prevent further simultaneous engine false fire warnings caused by electrical wiring system malfunction: (a) Accomplish the following or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region (1) Isolate each fire detector system test circuit by replacing wafer test switch, P/N 1-1917- 1N5, with switch, P/N 1-1919-2N5; and (2) Revise the wiring arrangement in accordance with Vertol Service Bulletins Nos. 107-219 and 107-219A dated September 20, and October 22, 1965, respectively, or later FAA-approved revisions. (b) After modification in accordance with (a), functionally test the engine fire detection system as described in Vertol 107-2 Maintenance Manual, Chapter 16. This directive effective June 18, 1966. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_66-13-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 66-13-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; VERTOL Model 107-II Helicopters Subject: Fire Detection System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 06/18/1966 Make: Columbia Helicopters, Inc. Model: 107-II 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: 66-13-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-240 AD NUMBER: 66-13-05 SUBJECT HEADING: Airworthiness Directives; VERTOL Model 107-II Helicopters ACTION: SUMMARY: DATES: Effective June 18, 1966. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 66-13-05 VERTOL: Amdt. 39-240 Part 39 Federal Register May 19, 1966. Applies to Model 107-II Helicopters. Compliance required within the next 130 hours' time in service after the effective date of this AD, unless already accomplished. To prevent further simultaneous engine false fire warnings caused by electrical wiring system malfunction: (a) Accomplish the following or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region (1) Isolate each fire detector system test circuit by replacing wafer test switch, P/N 1-1917- 1N5, with switch, P/N 1-1919-2N5; and (2) Revise the wiring arrangement in accordance with Vertol Service Bulletins Nos. 107-219 and 107-219A dated September 20, and October 22, 1965, respectively, or later FAA-approved revisions. (b) After modification in accordance with (a), functionally test the engine fire detection system as described in Vertol 107-2 Maintenance Manual, Chapter 16. This directive effective June 18, 1966. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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