Accident Martin 4-0-4 N40446, Saturday 9 July 1966
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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
Owner/operator:Piedmont Airlines
Registration: N40446
MSN: 14238
Year of manufacture:1952
Fatalities:Fatalities: 0 / Occupants: 42
Other fatalities:0
Aircraft damage: Destroyed, written off
Location:Roanoke Municipal Airport, VA (ROA) -   United States of America
Phase: Standing
Nature:Passenger - Scheduled
Departure airport:Roanoke Municipal Airport, VA (ROA/KROA)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The landing gear retracted while parked on the apron.

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

Accident investigation:
Investigating agency: NTSB
Report number: NYC67A0007
Status: Investigation completed
Duration: 10 months
Download report: Final report


NTSB File #1-0042

Revision history:


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