AD 80-15-01

final rule

LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes

AD Number
80-15-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.
Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

Applicability

TypeManufacturerModelDetails
aircraft Lockheed Martin Corporation L-1011-385-1 LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes
aircraft Lockheed Martin Corporation L-1011-385-1-14 LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes
aircraft Lockheed Martin Corporation L-1011-385-1-15 LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes
aircraft Lockheed Martin Corporation L-1011-385-3 LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes

Unsafe Condition

Possible burst type failure of the landing gear alternate brake/alternate landing gear down accumulator.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect accumulators Lockheed P/N 672273-101 (Bendix P/N 3186608) and 672273-103 (Bendix P/N 3186608-2) per Lockheed Alert Service Bulletin 093-32-A121 or replace with reworked accumulators per Service Bulletin 093-32-121. Failed accumulators must be removed and replaced with inspected or reworked units, or removed with lines capped, placard installed, and AFM appendix incorporated. Reinspect passed accumulators every 2200 hours' time in service until replaced.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

within the next 300 hours' time in service after the effective date of this AD

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Lockheed Model L-1011-385 Series Airplanes certified in all categories

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

LG Alternate Brake/LG Accumulator

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_80-15-01.html
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Details
AD Number:
80-15-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes
Subject:
LG Alternate Brake/LG Accumulator
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/17/1980
Make:
Lockheed Martin Corporation
Model:
L-1011-385-1 | L-1011-385-1-14 | L-1011-385-1-15 | L-1011-385-3
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: 80-15-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3840

AD NUMBER:   80-15-01

SUBJECT HEADING:   LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective July 17, 1980.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
80-15-01 LOCKHEED-CALIFORNIA: Amendment 39-3840. Applies to Lockheed Model L- 1011-385 Series Airplanes certified in all categories.

Compliance required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished.

To prevent a possible burst type failure of the landing gear alternate brake/alternate landing gear down accumulator, accomplish the following:

(a) Unless previously accomplished within 2200 hours' time in service prior to the effective date of this AD,

(1) Inspect all accumulators Lockheed P/N 672273-101 (Bendix P/N 3186608) and Lockheed P/N 672273-103 (Bendix P/N 3186608-2) in accordance with Lockheed Alert Service Bulletin 093-32-A121 dated November 11, 1976, or,

(2) Replace accumulators with accumulators reworked per Lockheed Service Bulletin 093-32-121 dated October 17, 1977.

(b) Accumulators which fail the inspection, prior to further flight operations, must be either:

(1) Removed and replaced with an accumulator which has passed the inspection or,

(2) Removed and replaced with an accumulator which has been reworked per (a)(2) above or,

(3) Remove the affected accumulator and accomplish the following actions in accordance with Lockheed Alert Service Bulletin 093-32-A121, dated November 11, 1976.

(i) Cap pneumatic and hydraulic lines.

(ii) Install landing gear alternate brake/alternate landing gear down accumulator inoperative placard in cockpit;

(iii) Incorporate FAA-approved Appendix 11 dated November 17, 1976, in the FAA-approved AFM, LR 25925. Appendix 11 provides special procedures for operation of the L-1011 with landing gear alternate brake/alternate landing gear down accumulator removed.

(c) Accumulators which passed inspection per (a)(1) or which were used as a replacement accumulator per (b)(1) must be reinspected per (a)(1) every 2200 hours' time in service until replaced with accumulators reworked per (a)(2).

(d) Equivalent inspections and/or modifications may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region.

This supersedes Amendment 39-2783 (41 FR 53779), AD 76-25-01.

This Amendment 39-3840 becomes effective July 17, 1980.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_80-15-01.html
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Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
80-15-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes
Subject:
LG Alternate Brake/LG Accumulator
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/17/1980
Make:
Lockheed Martin Corporation
Model:
L-1011-385-1 | L-1011-385-1-14 | L-1011-385-1-15 | L-1011-385-3
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: 80-15-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-3840

AD NUMBER:   80-15-01

SUBJECT HEADING:   LOCKHEED-CALIFORNIA Model L-1011-385 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective July 17, 1980.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
80-15-01 LOCKHEED-CALIFORNIA: Amendment 39-3840. Applies to Lockheed Model L- 1011-385 Series Airplanes certified in all categories.

Compliance required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished.

To prevent a possible burst type failure of the landing gear alternate brake/alternate landing gear down accumulator, accomplish the following:

(a) Unless previously accomplished within 2200 hours' time in service prior to the effective date of this AD,

(1) Inspect all accumulators Lockheed P/N 672273-101 (Bendix P/N 3186608) and Lockheed P/N 672273-103 (Bendix P/N 3186608-2) in accordance with Lockheed Alert Service Bulletin 093-32-A121 dated November 11, 1976, or,

(2) Replace accumulators with accumulators reworked per Lockheed Service Bulletin 093-32-121 dated October 17, 1977.

(b) Accumulators which fail the inspection, prior to further flight operations, must be either:

(1) Removed and replaced with an accumulator which has passed the inspection or,

(2) Removed and replaced with an accumulator which has been reworked per (a)(2) above or,

(3) Remove the affected accumulator and accomplish the following actions in accordance with Lockheed Alert Service Bulletin 093-32-A121, dated November 11, 1976.

(i) Cap pneumatic and hydraulic lines.

(ii) Install landing gear alternate brake/alternate landing gear down accumulator inoperative placard in cockpit;

(iii) Incorporate FAA-approved Appendix 11 dated November 17, 1976, in the FAA-approved AFM, LR 25925. Appendix 11 provides special procedures for operation of the L-1011 with landing gear alternate brake/alternate landing gear down accumulator removed.

(c) Accumulators which passed inspection per (a)(1) or which were used as a replacement accumulator per (b)(1) must be reinspected per (a)(1) every 2200 hours' time in service until replaced with accumulators reworked per (a)(2).

(d) Equivalent inspections and/or modifications may be used when approved by the Chief, Aircraft Engineering Division, FAA Western Region.

This supersedes Amendment 39-2783 (41 FR 53779), AD 76-25-01.

This Amendment 39-3840 becomes effective July 17, 1980.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.