AD 75-24-15
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-6-1 | Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes |
| aircraft | Viking Air Limited | DHC-6-100 | Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes |
| aircraft | Viking Air Limited | DHC-6-200 | Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes |
| aircraft | Viking Air Limited | DHC-6-300 | Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes |
Unsafe Condition
Total loss of A.C. power in the airplane due to a fault occurring in an A.C. circuit caused by slow blow fuses.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for and replace all slow blow fuses with appropriate fast blow fuses in accordance with de Havilland DHC-6 Service Bulletin No. 6/263, Revision D, dated September 30, 1974, or an equivalent method approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 25 hours time in service after the effective date of this AD unless already accomplished
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Affected Aircraft
de Havilland Aircraft of Canada Model DHC-6 airplanes serial nos. 290 through 427, excluding S/N 426, with flitertronic type PC 15 or PC 15A inverters.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
AC Power
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_75-24-15.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-24-15 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes Subject: AC Power Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/28/1975 Make: Viking Air Limited Model: DHC-6-1 | DHC-6-100 | DHC-6-200 | DHC-6-300 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-24-15 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2438 AD NUMBER: 75-24-15 SUBJECT HEADING: Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes ACTION: SUMMARY: DATES: Effective November 28, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-24-15 DE HAVILLAND: Amendment 39-2438. Applies to de Havilland Aircraft of Canada Model DHC-6 airplanes serial nos. 290 through 427 with the exception of S/N 426, certificated in all categories and incorporating flitertronic type PC 15 or PC 15A inverters. Compliance is required within 25 hours time in service after the effective date of this AD unless already accomplished. To prevent a total loss of A.C. power in the airplane in the event of a fault occurring in an A.C. circuit inspect for and replace all slow blow fuses with the appropriate fast blow fuses in accordance with instructions contained in the de Havilland DHC-6 Service Bulletin No. 6/263, Revision D, dated September 30, 1974, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. 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. This amendment is effective November 28, 1975. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_75-24-15.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 75-24-15 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes Subject: AC Power Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/28/1975 Make: Viking Air Limited Model: DHC-6-1 | DHC-6-100 | DHC-6-200 | DHC-6-300 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 75-24-15 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2438 AD NUMBER: 75-24-15 SUBJECT HEADING: Airworthiness Directives; de Havilland Aircraft of Canada Model DHC-6 Airplanes ACTION: SUMMARY: DATES: Effective November 28, 1975. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 75-24-15 DE HAVILLAND: Amendment 39-2438. Applies to de Havilland Aircraft of Canada Model DHC-6 airplanes serial nos. 290 through 427 with the exception of S/N 426, certificated in all categories and incorporating flitertronic type PC 15 or PC 15A inverters. Compliance is required within 25 hours time in service after the effective date of this AD unless already accomplished. To prevent a total loss of A.C. power in the airplane in the event of a fault occurring in an A.C. circuit inspect for and replace all slow blow fuses with the appropriate fast blow fuses in accordance with instructions contained in the de Havilland DHC-6 Service Bulletin No. 6/263, Revision D, dated September 30, 1974, or an equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. 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. This amendment is effective November 28, 1975. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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