AD 46-13-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Lockheed Aircraft Corporation | 18 | LOCKHEED Model 18 Airplanes |
Unsafe Condition
The existing fuel system plumbing equipment does not meet CAR Special Regulation 333 requirements for a dual fuel system.
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Required Actions
Replace the existing fuel system plumbing equipment with a dual fuel system in accordance with Lockheed Service Bulletin No. 18/SB-113 dated August 17, 1945, or an approved alternative dual fuel system.
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Compliance Time
not later than April 30, 1946
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Affected Aircraft
Lockheed Aircraft Corporation Model 18 airplanes used in scheduled air carrier operation.
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Federal Register Abstract
Dual Fuel System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_46-13-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-13-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: LOCKHEED Model 18 Airplanes Subject: Dual Fuel System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Lockheed Aircraft Corporation Model: 18 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 46-13-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-13-02 SUBJECT HEADING: LOCKHEED Model 18 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-13-02 LOCKHEED: (Was Mandatory Note 18 of AD-723-2). Applies Only to Model 18 Airplanes Used in Scheduled Air Carrier Operation. Compliance required not later than April 30, 1946. In order to comply with CAR Special Regulation 333, the present fuel system plumbing equipment shall be replaced with a dual fuel system in accordance with Lockheed Service Bulletin No. 18/SB-113, dated August 17, 1945, or any other dual fuel system approved by the Administrator. FOOTER:
Document Text
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AD Final Rules - DRS_46-13-02.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-13-02 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: LOCKHEED Model 18 Airplanes Subject: Dual Fuel System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: Lockheed Aircraft Corporation Model: 18 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: 46-13-02 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-13-02 SUBJECT HEADING: LOCKHEED Model 18 Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-13-02 LOCKHEED: (Was Mandatory Note 18 of AD-723-2). Applies Only to Model 18 Airplanes Used in Scheduled Air Carrier Operation. Compliance required not later than April 30, 1946. In order to comply with CAR Special Regulation 333, the present fuel system plumbing equipment shall be replaced with a dual fuel system in accordance with Lockheed Service Bulletin No. 18/SB-113, dated August 17, 1945, or any other dual fuel system approved by the Administrator. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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