ASN Aircraft accident Martin 4-0-4 N40446 Roanoke Municipal Airport, VA (ROA)
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Status:Accident investigation report completed and information captured
Date:Saturday 9 July 1966
Type:Silhouette image of generic M404 model; specific model in this crash may look slightly different
Martin 4-0-4
Operator:Piedmont Airlines
Registration: N40446
MSN: 14238
First flight: 1952
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 38
Total:Fatalities: 0 / Occupants: 42
Aircraft damage: Damaged beyond repair
Location:Roanoke Municipal Airport, VA (ROA) (   United States of America)
Phase: Standing (STD)
Nature:Domestic Scheduled Passenger
Departure airport:Roanoke Municipal Airport, VA (ROA/KROA), United States of America
Destination airport:?
The landing gear retracted while parked on the apron.

Probable Cause:

personnel - maintenance,servicing,inspection: improper maintenance (maintenance personnel)
systems - hydraulic system: reservoir,lines,fittings
airframe - landing gear: switches,levers,cranking mechanism,etc.
miscellaneous acts, conditions - disregard of good operating practice


Damaged on the ground

» NTSB File #1-0042


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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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