AD 51-02-01

final rule
Data completeness: 60%

Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft

AD Number
51-02-01
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
aircraft The Boeing Company DC3-G102 Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3-G102A Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3-G103A Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3-G202A Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3A-S1C3G Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3A-S1CG Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3A-S4C4G Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3A-SC3G Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3A-SCG Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft
aircraft The Boeing Company DC3C-R-1830-90C Airworthiness Directives; DOUGLAS All Model DC3 Series Aircraft

Unsafe Condition

Failure of the main entrance door hinges and locking and warning mechanisms due to misalignment or improper adjustment, leading to door disengagement in flight due to vibration or other loads.

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

Required Actions

Inspect door hinges and locking mechanisms for alignment and adjustment until rework is done. Install an inspection window and bayonet markings to verify locked position. Implement notched bayonets or spring-loaded latches to prevent disengagement. Install stops to limit lock mechanism travel as per specified service bulletins.

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

Compliance Time

Compliance required by July 1, 1951 and January 1, 1953.

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

Affected Aircraft

Douglas All Model DC3 Series Aircraft with ramp type main entrance doors hinged at the bottom.

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 DC3-G102

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Effective: Apr 19, 1990 Category: aircraft

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