AD 70-05-01
final rule
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
False indication of a retracted flap position which could result in a failure of the flap structure in flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the flap signalling mechanism and flap control unit in accordance with British Aircraft Corporation Service Bulletin No. 27-PM 3550, Revision 2, dated February 3, 1969, or later ARB-approved issue or FAA-approved equivalent
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 1500 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
Flap Signalling System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-05-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-05-01 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: Flap Signalling System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/23/1970 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Model: BAC 1-11 200 Series | BAC 1-11 400 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 70-05-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-945 AD NUMBER: 70-05-01 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes ACTION: SUMMARY: DATES: Effective March 23, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-05-01 BRITISH AIRCRAFT CORPORATION: Amdt. 39-945. Applies to Model BAC 1- 11 200 and 400 series airplanes. To prevent false indication of a retracted flap position which could result in a failure of the flap structure in flight, within the next 1500 hours' time in service after the effective date of this AD, unless already accomplished, modify the flap signalling mechanism and flap control unit in accordance with British Aircraft Corporation Model BAC 1-11 Service Bulletin No. 27-PM 3550, Revision 2, dated February 3, 1969, or later ARB-approved issue or an FAA-approved equivalent. (British Aircraft Corporation Model BAC 1-11 Alert Service Bulletin No. 27-A-PM 3550, dated August 18, 1968, covers the same subject.) This amendment becomes effective March 23, 1970. FOOTER:
Document Text
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AD Final Rules - DRS_70-05-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-05-01 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: Flap Signalling System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/23/1970 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: 70-05-01 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-945 AD NUMBER: 70-05-01 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes ACTION: SUMMARY: DATES: Effective March 23, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-05-01 BRITISH AIRCRAFT CORPORATION: Amdt. 39-945. Applies to Model BAC 1- 11 200 and 400 series airplanes. To prevent false indication of a retracted flap position which could result in a failure of the flap structure in flight, within the next 1500 hours' time in service after the effective date of this AD, unless already accomplished, modify the flap signalling mechanism and flap control unit in accordance with British Aircraft Corporation Model BAC 1-11 Service Bulletin No. 27-PM 3550, Revision 2, dated February 3, 1969, or later ARB-approved issue or an FAA-approved equivalent. (British Aircraft Corporation Model BAC 1-11 Alert Service Bulletin No. 27-A-PM 3550, dated August 18, 1968, covers the same subject.) This amendment becomes effective March 23, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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