AD 79-19-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Martin Corporation | L-1011-385-1 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-14 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes |
| aircraft | Lockheed Martin Corporation | L-1011-385-1-15 | LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes |
Unsafe Condition
Failure of the pressure relief door to maintain fail-safe operational capability due to inadequate antifriction gasket on the flange.
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Required Actions
Install the antifriction gasket on the flange of the pressure relief door per FAA-approved Service Bulletin 093-52-133 within the next 300 hours time in service. Alternate modifications may be used if approved by the Chief, Aircraft Engineering Division, FAA Western Region.
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Compliance Time
Within the next 300 hours time in service
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Affected Aircraft
Lockheed-California Company Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 airplanes configured with a C-1A cargo door.
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Federal Register Abstract
Pressure Relief Door
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-19-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-19-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes Subject: Pressure Relief Door Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/24/1979 Make: Lockheed Martin Corporation Model: L-1011-385-1 | L-1011-385-1-14 | L-1011-385-1-15 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-19-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3561 AD NUMBER: 79-19-08 SUBJECT HEADING: LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes ACTION: SUMMARY: DATES: Effective September 24, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-19-08 LOCKHEED-CALIFORNIA COMPANY: Amendment 39-3561. Applies to all L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 airplanes certificated in all categories, configured with a C-1A cargo door. Compliance required as indicated. To assure the retention of "fail-safe" operational capability of the pressure relief door, accomplish the following: (a) Within the next 300 hours time in service, unless already accomplished, install the antifriction gasket on the flange of the pressure relief door in accordance with the FAA approved Lockheed-California Company Service Bulletin 093-52-133 dated May 30, 1979. (b) Special flight permits may be issued, in accordance with FAR 21.197 and 21.199, to operate airplanes to a base for the accomplishment of modification required by this AD. (c) Alternate modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region. This amendment becomes effective September 24, 1979. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_79-19-08.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-19-08 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes Subject: Pressure Relief Door Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 09/24/1979 Make: Lockheed Martin Corporation Model: L-1011-385-1 | L-1011-385-1-14 | L-1011-385-1-15 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: 79-19-08 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3561 AD NUMBER: 79-19-08 SUBJECT HEADING: LOCKHEED-CALIFORNIA COMPANY Model L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 Airplanes ACTION: SUMMARY: DATES: Effective September 24, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-19-08 LOCKHEED-CALIFORNIA COMPANY: Amendment 39-3561. Applies to all L-1011-385-1, L-1011-385-1-14, and L-1011-385-1-15 airplanes certificated in all categories, configured with a C-1A cargo door. Compliance required as indicated. To assure the retention of "fail-safe" operational capability of the pressure relief door, accomplish the following: (a) Within the next 300 hours time in service, unless already accomplished, install the antifriction gasket on the flange of the pressure relief door in accordance with the FAA approved Lockheed-California Company Service Bulletin 093-52-133 dated May 30, 1979. (b) Special flight permits may be issued, in accordance with FAR 21.197 and 21.199, to operate airplanes to a base for the accomplishment of modification required by this AD. (c) Alternate modifications or other actions which provide an equivalent level of safety may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region. This amendment becomes effective September 24, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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