AD 71-16-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus SAS | BAC 1-11 200 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes |
| aircraft | Airbus SAS | BAC 1-11 400 Series | Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes |
Unsafe Condition
Hazardous drift in the Voltage Sensing Unit due to transistor T.1 in the Rotax Voltage Sensing Unit Type U.3619 or U.3619/1.
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Required Actions
Replace transistor T.1 with a new transistor P/N.197235/1 in the Rotax Voltage Sensing Unit, following Rotax Service Bulletin No. 24-368 or FAA-approved equivalent within 800 hours' time in service after the effective date.
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Compliance Time
within the next 800 hours' time in service after the effective date of this AD
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Affected Aircraft
British Aircraft Corporation Model BAC 1-11 200 and 400 Series airplanes
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Federal Register Abstract
Voltage Sensing Unit
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_71-16-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-16-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes Subject: Voltage Sensing Unit Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/29/1971 Make: Airbus SAS Model: BAC 1-11 200 Series | BAC 1-11 400 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 71-16-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1249 AD NUMBER: 71-16-05 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes ACTION: SUMMARY: DATES: Effective July 29, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-16-05 BRITISH AIRCRAFT CORPORATION: Amdt. 39-1249. Applies to Model BAC 1- 11 200 and 400 series airplanes. To prevent a hazardous drift in the Voltage Sensing Unit, within the next 800 hours' time in service after the effective date of this AD, incorporate Rotax Modification SP 7174 by replacing the transistor T.1 in the Rotax Voltage Sensing Unit Type U.3619 or U.3619/1 with a new transistor, P/N.197235/1, in accordance with Rotax Service Bulletin No. 24-368 dated May 4, 1970, or later ARB-approved issue or an FAA-approved equivalent. (British Aircraft Corporation Model BAC 1-11 Service Bulletin 24-PM 4641, Revision 2, dated June 15, 1970, refers to this subject.) This amendment becomes effective July 29, 1971. FOOTER:
Document Text
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AD Final Rules - DRS_71-16-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 71-16-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes Subject: Voltage Sensing Unit Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 07/29/1971 Make: Airbus SAS Model: BAC 1-11 200 Series | BAC 1-11 400 Series Product Type: Aircraft Product Subtype: Large 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: 71-16-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1249 AD NUMBER: 71-16-05 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes ACTION: SUMMARY: DATES: Effective July 29, 1971. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 71-16-05 BRITISH AIRCRAFT CORPORATION: Amdt. 39-1249. Applies to Model BAC 1- 11 200 and 400 series airplanes. To prevent a hazardous drift in the Voltage Sensing Unit, within the next 800 hours' time in service after the effective date of this AD, incorporate Rotax Modification SP 7174 by replacing the transistor T.1 in the Rotax Voltage Sensing Unit Type U.3619 or U.3619/1 with a new transistor, P/N.197235/1, in accordance with Rotax Service Bulletin No. 24-368 dated May 4, 1970, or later ARB-approved issue or an FAA-approved equivalent. (British Aircraft Corporation Model BAC 1-11 Service Bulletin 24-PM 4641, Revision 2, dated June 15, 1970, refers to this subject.) This amendment becomes effective July 29, 1971. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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