NTSB Identification: LAX85LA147.
The docket is stored on NTSB microfiche number 27219.
Accident occurred Wednesday, February 20, 1985 in STOCKTON, CA
Aircraft: BELL 47G-2, registration: N4021A
Injuries: 2 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
THE ENG EXPERIENCED A TTL LOSS OF PWR DURING CRUISE FLT AT 300-400 FT AGL. THE PLT PERFORMED AN AUTOROTATION INTO A GRAPE VINEYARD WHICH RESULTED IN SUBSTANTIAL DAMAGE TO THE HELICOPTER. CAUSE OF THE LOSS OF PWR WAS NOT DETERMINED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:REASON FOR OCCURRENCE UNDETERMINED
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