ASN Aircraft accident Grumman G-73 Mallard N2940 Lake Hefner, OK
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Status:Accident investigation report completed and information captured
Date:Friday 12 February 1965
Time:13:40
Type:Silhouette image of generic G73 model; specific model in this crash may look slightly different
Grumman G-73 Mallard
Operator:Jack Adams Aircraft Sales Inc.
Registration: N2940
MSN: J-4
First flight: 1946
Crew:Fatalities: 0 / Occupants: 3
Passengers:Fatalities: 0 / Occupants: 1
Total:Fatalities: 0 / Occupants: 4
Aircraft damage: Substantial
Aircraft fate: Repaired
Location:Lake Hefner, OK (   United States of America)
Phase: Landing (LDG)
Nature:Training
Departure airport:?
Destination airport:?
Narrative:
The G-73 Mallard amphibian sustained substantial damage in a landing accident at Lake Hefner.

Probable Cause:

PROBABLE CAUSES:
copilot - improper level off
pilot in command - inadequate supervision of flight
FACTOR:
airports/airways/facilities - airport conditions: glassy water

Sources:
» NTSB
» Grumman G-73 Mallard / Geoff Goodall


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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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