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Accident description
Last updated: 17 October 2017
Status:Final
Date:Saturday 9 July 1966
Time:09:54
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
C/n / msn: 14238
First flight:
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 38
Total:Fatalities: 0 / Occupants: 42
Airplane 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:?
Narrative:
The landing gear retracted while parked on the apron.

Probable Cause:

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

Classification:

Sources:
» NTSB File #1-0042


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