AD 46-39-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | C54-DC | DOUGLAS Model C-54 Series Aircraft |
| aircraft | The Boeing Company | C54A-DC | DOUGLAS Model C-54 Series Aircraft |
| aircraft | The Boeing Company | C54B-DC | DOUGLAS Model C-54 Series Aircraft |
| aircraft | The Boeing Company | C54D-DC | DOUGLAS Model C-54 Series Aircraft |
| aircraft | The Boeing Company | C54E-DC | DOUGLAS Model C-54 Series Aircraft |
| aircraft | The Boeing Company | C54G-DC | DOUGLAS Model C-54 Series Aircraft |
Unsafe Condition
Magneto wires forward of the firewall may be chafing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect magneto wires forward of the firewall for chafing each 100 hours of operation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
The Boeing Company Model C54-DC, C54A-DC, C54B-DC, C54D-DC, C54E-DC, C54G-DC
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Magneto Wires
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_46-39-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-39-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: DOUGLAS Model C-54 Series Aircraft Subject: Magneto Wires 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| C54A-DC | C54B-DC | C54D-DC | C54E-DC | C54G-DC Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 46-39-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-39-03 SUBJECT HEADING: DOUGLAS Model C-54 Series Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-39-03 DOUGLAS: (Was Service Note 2 of AD-762-7.) Applies to C-54 Series Aircraft. Pending accomplishment of AD 46-24-02, the magneto wires forward of the firewall must be inspected for chafing each 100 hours of operation. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_46-39-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 46-39-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: DOUGLAS Model C-54 Series Aircraft Subject: Magneto Wires 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 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: 46-39-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: AD NUMBER: 46-39-03 SUBJECT HEADING: DOUGLAS Model C-54 Series Aircraft ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 46-39-03 DOUGLAS: (Was Service Note 2 of AD-762-7.) Applies to C-54 Series Aircraft. Pending accomplishment of AD 46-24-02, the magneto wires forward of the firewall must be inspected for chafing each 100 hours of operation. 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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