NTSB Identification: SEA88LA135.
The docket is stored on NTSB microfiche number 36315.
Accident occurred Thursday, July 21, 1988 in COLFAX, WA
Probable Cause Approval Date: 04/14/1989
Aircraft: SCHWEIZER G164A, registration: N8974H
Injuries: 1 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.ON DEPARTURE WITH A LOAD OF CHEMICAL, AG PLT ATTEMPTED TO OUTCLIMB RISING TERRAIN AHEAD. THE AIRCRAFT COLLIDED WITH TERRAIN IN A STALL/MUSH.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
PREFLIGHT PLANNING/PREPARATION..IMPROPER..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
CLEARANCE..MISJUDGED..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
AIRSPEED..NOT MAINTAINED..PILOT IN COMMAND
Contributing Factors
TERRAIN CONDITION..RISING
Contributing Factors
PERFORMANCE DATA..NOT USED..PILOT IN COMMAND
Contributing Factors
LOAD JETTISON..NOT PERFORMED..PILOT IN COMMAND
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