AD 46-12-02

final rule
Data completeness: 60%

DOUGLAS Model DC3A Aircraft

AD Number
46-12-02
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company DC3A-S1C3G DOUGLAS Model DC3A Aircraft
aircraft The Boeing Company DC3A-S1CG DOUGLAS Model DC3A Aircraft
aircraft The Boeing Company DC3A-S4C4G DOUGLAS Model DC3A Aircraft
aircraft The Boeing Company DC3A-SC3G DOUGLAS Model DC3A Aircraft
aircraft The Boeing Company DC3A-SCG DOUGLAS Model DC3A Aircraft

Unsafe Condition

Cracks or flaws in the beryllium copper engine mount to firewall attach fittings (P/N 5-81486-4) could lead to engine separation.

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

Required Actions

Inspect the engine mount to firewall attach fittings (P/N 5-81486-4) immediately and every 100 flight hours thereafter using a 4-power magnifying glass. Replace with P/N 1042764 if cracks or flaws are found or during the next engine change.

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

Compliance Time

Immediately

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

Affected Aircraft

The Boeing Company DC3A-S1C3G, DC3A-S1CG, DC3A-S4C4G, DC3A-SC3G, DC3A-SCG aircraft with beryllium copper engine mount to firewall attach fittings installed.

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

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.

View Official Source ↗ Find More ADs for The Boeing Company DC3A-S1C3G

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