AD 67-33-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Viking Air Limited | DHC-6-1 | Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes |
| aircraft | Viking Air Limited | DHC-6-100 | Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes |
| aircraft | Viking Air Limited | DHC-6-200 | Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes |
| aircraft | Viking Air Limited | DHC-6-300 | Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes |
Unsafe Condition
The noncompliance of the Grimes 41905-1 Anti-Collision Light causes a hazardous condition.
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Required Actions
Install a placard stating 'AIRCRAFT LIMITED TO DAY VFR FLIGHT ONLY' within 50 hours' time in service after the effective date. The placard may be removed after replacing the light with Grimes G8400A-24 per de Havilland Modification No. 6/1116 or equivalent approved installation.
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Compliance Time
Within the next 50 hours' time in service after the effective date of this AD
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Affected Aircraft
de Havilland Aircraft Type DHC-6 Airplanes incorporating Grimes 41905-1 Anti-Collision Light
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Federal Register Abstract
Anti-collision Light
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_67-33-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 67-33-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes Subject: Anti-collision Light Status: Current Citation: Federal Register: December 30, 1967 Citation Publish Date: 12/30/1967 Effective Date: 12/30/1967 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Model: DHC-6-1 | DHC-6-100 | DHC-6-200 | DHC-6-300 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 67-33-01 CITATION: [Federal Register: December 30, 1967] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-529 AD NUMBER: 67-33-01 SUBJECT HEADING: Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes ACTION: SUMMARY: DATES: Effective December 30, 1967. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 67-33-01 de HAVILLAND AIRCRAFT: Amdt. 39-529, Part 39, Federal Register December 30, 1967. Applies to Type DHC-6 Airplanes Incorporating Grimes 41905-1 Anti- Collision Light. Compliance required as indicated. To prevent the occurrence of a hazardous condition, caused by the noncompliance of the Grimes 41905-1 Anti-Collision Light, accomplish the following: (a) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished, install the following placard in full view of the pilot: "AIRCRAFT LIMITED TO DAY VFR FLIGHT ONLY." (b) The placard required by paragraph (a) may be removed when the light is replaced by the Grimes G8400A-24 Anti-Collision Light in accordance with the "Procedure" outlined in de Havilland Modification No. 6/1116, dated October 26, 1967, or later revision or equivalent installation approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) 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 effective December 30, 1967. FOOTER:
Document Text
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AD Final Rules - DRS_67-33-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 67-33-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes Subject: Anti-collision Light Status: Current Citation: Federal Register: December 30, 1967 Citation Publish Date: 12/30/1967 Effective Date: 12/30/1967 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: 67-33-01 CITATION: [Federal Register: December 30, 1967] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-529 AD NUMBER: 67-33-01 SUBJECT HEADING: Airworthiness Directives; de Havilland Aircraft Type DHC-6 Series Airplanes ACTION: SUMMARY: DATES: Effective December 30, 1967. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 67-33-01 de HAVILLAND AIRCRAFT: Amdt. 39-529, Part 39, Federal Register December 30, 1967. Applies to Type DHC-6 Airplanes Incorporating Grimes 41905-1 Anti- Collision Light. Compliance required as indicated. To prevent the occurrence of a hazardous condition, caused by the noncompliance of the Grimes 41905-1 Anti-Collision Light, accomplish the following: (a) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished, install the following placard in full view of the pilot: "AIRCRAFT LIMITED TO DAY VFR FLIGHT ONLY." (b) The placard required by paragraph (a) may be removed when the light is replaced by the Grimes G8400A-24 Anti-Collision Light in accordance with the "Procedure" outlined in de Havilland Modification No. 6/1116, dated October 26, 1967, or later revision or equivalent installation approved by the Chief, Engineering and Manufacturing Branch, FAA Eastern Region. (c) 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 effective December 30, 1967. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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