ASN Aircraft accident Douglas DC-7 N6339C Denver-Stapleton International Airport, CO (DEN)
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Status:Accident investigation report completed and information captured
Date:Wednesday 18 May 1966
Time:17:40
Type:Silhouette image of generic DC7 model; specific model in this crash may look slightly different
Douglas DC-7
Operator:United Airlines
Registration: N6339C
MSN: 45153/822
First flight: 1957
Crew:Fatalities: 0 / Occupants: 4
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 4
Aircraft damage: Damaged beyond repair
Location:Denver-Stapleton International Airport, CO (DEN) (   United States of America)
Phase: Landing (LDG)
Nature:Training
Departure airport:?
Destination airport:Denver-Stapleton International Airport, CO (DEN/KDEN), United States of America
Narrative:
On landing the nose wheel tire recap separated, striking and disconnecting the nose gear torque link pins. The landing gear leg then collapsed. The DC-7 named "Mainliner Capt. Ralph Johnston" was consequently sold to Barter Machinery & Supply and broken up.

Probable Cause:

PROBABLE CAUSE(S)
airframe - landing gear: nosewheel assemblies
airframe - landing gear: wheels,tires,axles
miscellaneous acts, conditions - material failure
FACTOR(S)
miscellaneous acts, conditions - vibration, excessive

Sources:
» NTSB file # 1-0038


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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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