AD 47-02-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | C54-DC | DOUGLAS Model C-54 and DC-4 Aircraft. |
| aircraft | The Boeing Company | C54A-DC | DOUGLAS Model C-54 and DC-4 Aircraft. |
| aircraft | The Boeing Company | C54B-DC | DOUGLAS Model C-54 and DC-4 Aircraft. |
| aircraft | The Boeing Company | C54D-DC | DOUGLAS Model C-54 and DC-4 Aircraft. |
| aircraft | The Boeing Company | C54E-DC | DOUGLAS Model C-54 and DC-4 Aircraft. |
| aircraft | The Boeing Company | C54G-DC | DOUGLAS Model C-54 and DC-4 Aircraft. |
| aircraft | The Boeing Company | DC-4 | DOUGLAS Model C-54 and DC-4 Aircraft. |
Unsafe Condition
Fuel leaking into firewall junction box due to improper location of engine primer solenoid.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Relocate engine primer solenoid in accordance with specified Douglas Service Bulletins.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
not later than March 15, 1947
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Douglas Model C-54 and DC-4 Aircraft as listed in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Engine Primer Solenoid
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_47-02-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-02-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: DOUGLAS Model C-54 and DC-4 Aircraft. Subject: Engine Primer Solenoid Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: The Boeing Company Model: C54-DC | C54A-DC | C54B-DC | C54D-DC | C54E-DC | C54G-DC | DC-4 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 47-02-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-02-04 SUBJECT HEADING: DOUGLAS Model C-54 and DC-4 Aircraft. ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-02-04 DOUGLAS: (Was Mandatory Note 12 AD-762-7.) Applies to C-54 and DC-4 Aircraft. To be accomplished not later than March 15, 1947. Relocate engine primer solenoid to prevent fuel leaking into firewall junction box. This change shall be accomplished in accordance with item 25 of Douglas Service Bulletin C-54-266, dated May 17, 1946, or part 2A, item 4; and part 2C, item 12 of Douglas Service Bulletin DC-4 No. 66, dated June 18, 1947. Revised May 24, 1948. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_47-02-04.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 47-02-04 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: DOUGLAS Model C-54 and DC-4 Aircraft. Subject: Engine Primer Solenoid Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: Make: The Boeing Company Model: C54-DC | C54A-DC | C54B-DC | C54D-DC | C54E-DC | C54G-DC | DC-4 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: 47-02-04 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 47-02-04 SUBJECT HEADING: DOUGLAS Model C-54 and DC-4 Aircraft. ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 47-02-04 DOUGLAS: (Was Mandatory Note 12 AD-762-7.) Applies to C-54 and DC-4 Aircraft. To be accomplished not later than March 15, 1947. Relocate engine primer solenoid to prevent fuel leaking into firewall junction box. This change shall be accomplished in accordance with item 25 of Douglas Service Bulletin C-54-266, dated May 17, 1946, or part 2A, item 4; and part 2C, item 12 of Douglas Service Bulletin DC-4 No. 66, dated June 18, 1947. Revised May 24, 1948. 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.
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