AD 52-25-01

final rule
Data completeness: 60%

Airworthiness Directives; DOUGLAS All Models DC3 Aircraft

AD Number
52-25-01
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 Models DC3 Aircraft
aircraft The Boeing Company DC3-G102A Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3-G103A Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3-G202A Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3A-S1C3G Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3A-S1CG Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3A-S4C4G Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3A-SC3G Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3A-SCG Airworthiness Directives; DOUGLAS All Models DC3 Aircraft
aircraft The Boeing Company DC3C-R-1830-90C Airworthiness Directives; DOUGLAS All Models DC3 Aircraft

Unsafe Condition

Excessive air temperatures and associated fire hazards in the vacuum system discharge line.

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

Required Actions

Install a fusible plug in the vacuum pump discharge port with specified fittings and materials, or employ an oil separator equivalent to Genisco No. 40081 with a pressure relief valve. Modifications must ensure the plug does not damage other components if blown out.

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

Compliance Time

not later than May 1, 1953

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

Affected Aircraft

All Models DC3 Aircraft Equipped With Vacuum Systems

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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