AD 77-14-05
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
Excessive fuel contamination of the Auxiliary Power Unit (APU) oil contents due to fuel leakage in Garrett AiResearch Models GTCP 85-115, -115C, or -115CK APU's without British Aircraft Corporation Modification PM 5217.
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Required Actions
Inspect for fuel leakage in accordance with Service Bulletin 49-PM 5217 within 60 APU hours after the effective date, unless done within the last 20 APU hours. Repeat inspections at intervals not exceeding 80 APU hours. Rectify leaks, drain/refill oil, and continue inspections if leakage exceeds one drop per minute.
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Compliance Time
Within the next 60 APU hours' time in service after the effective date of this AD, unless accomplished within the last 20 APU hours' time in service, and thereafter at intervals not to exceed 80 APU hours' time in service from the last inspection.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
BAC 1-11 200 and 400 Series airplanes with Garrett AiResearch Models GTCP 85-115, -115C, or -115CK APU's installed, not having Modification PM 5217.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
APU Oil Contents
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-14-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-14-05 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: APU Oil Contents Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/05/1977 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Model: BAC 1-11 200 Series | BAC 1-11 400 Series Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-14-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2953 AD NUMBER: 77-14-05 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes ACTION: SUMMARY: DATES: Effective August 5, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-14-05 BRITISH AIRCRAFT CORPORATION: Amendment 39-2953. Applies to BAC 1- 11 200 and 400 series airplanes, certificated in all categories, with Garrett AiResearch Models GTCP 85-115, -115C or -115CK APU's installed, that do not have British Aircraft Corporation Modification PM 5217 incorporated. Compliance is required as indicated. To prevent excessive fuel contamination of the Auxiliary Power Unit oil contents, accomplish the following: (a) Within the next 60 APU hours' time in service after the effective date of this AD, unless accomplished within the last 20 APU hours' time in service, and thereafter at intervals not to exceed 80 APU hours' time in service from the last inspection, inspect for fuel leakage in accordance with paragraph 2.1 of the Accomplishment Instructions of British Aircraft Corporation Model BAC 1-11 Service Bulletin 49-PM 5217, or an FAA-approved equivalent. (b) If the fuel leakage rate exceeds one drop per minute, prior to further use of the APU, rectify the leakage, drain and refill the oil system with fresh oil, and thereafter continue the inspections required by paragraph (a) of this AD. (c) Upon the request of an operator, the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, c/o American Embassy, APO New York, N.Y. 09667, may adjust the repetitive inspection intervals specified in paragraph (a) of this AD if the request contains substantiating data to justify the change. This amendment becomes effective August 5, 1977. FOOTER:
Document Text
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AD Final Rules - DRS_77-14-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-14-05 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: APU Oil Contents Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/05/1977 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: 77-14-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2953 AD NUMBER: 77-14-05 SUBJECT HEADING: Airworthiness Directives; BRITISH AIRCRAFT CORPORATION Model BAC 1- 11 200 and 400 Series Airplanes ACTION: SUMMARY: DATES: Effective August 5, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-14-05 BRITISH AIRCRAFT CORPORATION: Amendment 39-2953. Applies to BAC 1- 11 200 and 400 series airplanes, certificated in all categories, with Garrett AiResearch Models GTCP 85-115, -115C or -115CK APU's installed, that do not have British Aircraft Corporation Modification PM 5217 incorporated. Compliance is required as indicated. To prevent excessive fuel contamination of the Auxiliary Power Unit oil contents, accomplish the following: (a) Within the next 60 APU hours' time in service after the effective date of this AD, unless accomplished within the last 20 APU hours' time in service, and thereafter at intervals not to exceed 80 APU hours' time in service from the last inspection, inspect for fuel leakage in accordance with paragraph 2.1 of the Accomplishment Instructions of British Aircraft Corporation Model BAC 1-11 Service Bulletin 49-PM 5217, or an FAA-approved equivalent. (b) If the fuel leakage rate exceeds one drop per minute, prior to further use of the APU, rectify the leakage, drain and refill the oil system with fresh oil, and thereafter continue the inspections required by paragraph (a) of this AD. (c) Upon the request of an operator, the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, c/o American Embassy, APO New York, N.Y. 09667, may adjust the repetitive inspection intervals specified in paragraph (a) of this AD if the request contains substantiating data to justify the change. This amendment becomes effective August 5, 1977. FOOTER:
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Retrieved: Apr 8, 2026
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