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NTSB Report
October 6, 1991 · Cessna 172G · N1372F
Miltonfreewater, OR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 6, 1991
Injury Outcomes
4 injuries (4 fatalities)
Location
Miltonfreewater, OR
Aircraft
Cessna 172G
Tail Number
N1372F
Operator
Charles W Wolfkiel
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA92FA002
DURING A PLEASURE FLIGHT, THE AIRPLANE WAS OBSERVED FLYING JUST ABOVE THE TREE LINE IN A VALLEY APPROXIMATELY 1,000 FEET BELOW THE RIDGE LINE. THE AIRPLANE CONTINUED TO TRAVEL THROUGH THIS VALLEY WHICH LED INTO A BOX CANYON. THE AIRPLANE THEN MADE AN APPROXIMATE 45 DEGREE BANKING RIGHT TURN, AND ALMOST COMPLETED THE 180 DEGREE TURN WHEN IT COLLIDED WITH THE TREES AND SUBSEQUENTLY THE TERRAIN. THE WINESSES REPORTED THAT THE ENGINE WAS RUNNING NORMALLY THE ENTIRE TIME AND THAT THE AIRPLANE APPEARED TO BE UNDER CONTROL UNTIL THE TURNING MANEUVER.
NTSB Probable Cause
INADEQUATE IN-FLIGHT PLANNING. FACTORS TO THE ACCIDENT WERE: MOUNTAINOUS TERRAIN, CLEARANCE NOT MAINTAINED, LACK OF TOTAL FLIGHT EXPERIENCE, AND LACK OF FAMILIARITY WITH GEOGRAPHICAL AREA.
Full Narrative
DURING A PLEASURE FLIGHT, THE AIRPLANE WAS OBSERVED FLYING JUST ABOVE THE TREE LINE IN A VALLEY APPROXIMATELY 1,000 FEET BELOW THE RIDGE LINE. THE AIRPLANE CONTINUED TO TRAVEL THROUGH THIS VALLEY WHICH LED INTO A BOX CANYON. THE AIRPLANE THEN MADE AN APPROXIMATE 45 DEGREE BANKING RIGHT TURN, AND ALMOST COMPLETED THE 180 DEGREE TURN WHEN IT COLLIDED WITH THE TREES AND SUBSEQUENTLY THE TERRAIN. THE WINESSES REPORTED THAT THE ENGINE WAS RUNNING NORMALLY THE ENTIRE TIME AND THAT THE AIRPLANE APPEARED TO BE UNDER CONTROL UNTIL THE TURNING MANEUVER.
Flight
Event TypeAccident
Event Time17:20 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172G
Tail NumberN1372F
Aircraft CategoryAir
DamageDestroyed
OperatorCharles W Wolfkiel
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-300-D · Reciprocating · 145
Seats4
People & Injuries
Injury Summary4 injuries (4 fatalities)
Fatal4
Serious0
Minor0
Uninjured0
Total4
Crew 1Age 22 · First Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT