AD 48-05-01

final rule
Data completeness: 60%

Airworthiness Directives; DOUGLAS DC3 Aircraft

AD Number
48-05-01
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 DC3 Aircraft
aircraft The Boeing Company DC3-G102A Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3-G103A Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3-G202A Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3A-S1C3G Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3A-S1CG Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3A-S4C4G Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3A-SC3G Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3A-SCG Airworthiness Directives; DOUGLAS DC3 Aircraft
aircraft The Boeing Company DC3C-R-1830-90C Airworthiness Directives; DOUGLAS DC3 Aircraft

Unsafe Condition

Leakage in the oil shutoff valves due to 'O' rings not capable of withstanding operating temperatures.

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

Required Actions

Replace the present 'O' rings in the oil shutoff valves with H222-90 high temperature material or AMS-3228B material.

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

Compliance Time

at first engine change after March 1, 1948, but not later than May 1, 1948

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

Affected Aircraft

Douglas DC3 Aircraft equipped with Pacific Aviation Oil Shutoff Valves.

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

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