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NTSB Report
April 5, 1990 · Stinson 108-2 · N9443K
Hillsboro, OR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
April 5, 1990
Injury Outcomes
No injuries (1 uninjured)
Location
Hillsboro, OR
Aircraft
Stinson 108-2
Tail Number
N9443K
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA90LA062
THE PILOT REPORTED THAT HE HAD SECURED THE TAIL OF THE AIRPLANE WITH A TIE DOWN CHAIN, SET THE PARKING BRAKE AND ADJUSTED THE THROTTLE TO 550 RPM'S. THE PILOT THEN PROCEEDED TO HAND PROP THE ENGINE. THE ENGINE STARTED AND THE PILOT BEGAN TO WALK AROUND THE AIRPLANE WHEN HE NOTED THAT THE AIRPLANE STARTED FORWARD MOVEMENT. THE AIRPLANE OVERRODE THE PARKING BRAKE AND BROKE THE TIE DOWN CHAIN. THE PILOT SLIPPED AND WAS UNABLE TO GET INSIDE THE COCKPIT. THE AIRPLANE PROCEEDED FORWARD AND COLLIDED WITH TWO PARKED AIRPLANES.
NTSB Probable Cause
PILOT DISPLAYED POOR STARTING PROCEDURES BY PROCEEDING WITH KNOWN DEFICIENCIES WITH THE PARKING BRAKE AND THE INADEQUACIES OF THE TIE DOWN. THE PILOT DID NOT ATTAIN ASSISTANCE FOR THIS PROCEDURE WHICH RESULTED IN THE AIRPLANE GETTING AWAY AND COLLIDING WITH TWO PARKED AIRPLANES.
Full Narrative
THE PILOT REPORTED THAT HE HAD SECURED THE TAIL OF THE AIRPLANE WITH A TIE DOWN CHAIN, SET THE PARKING BRAKE AND ADJUSTED THE THROTTLE TO 550 RPM'S. THE PILOT THEN PROCEEDED TO HAND PROP THE ENGINE. THE ENGINE STARTED AND THE PILOT BEGAN TO WALK AROUND THE AIRPLANE WHEN HE NOTED THAT THE AIRPLANE STARTED FORWARD MOVEMENT. THE AIRPLANE OVERRODE THE PARKING BRAKE AND BROKE THE TIE DOWN CHAIN. THE PILOT SLIPPED AND WAS UNABLE TO GET INSIDE THE COCKPIT. THE AIRPLANE PROCEEDED FORWARD AND COLLIDED WITH TWO PARKED AIRPLANES.
Flight
Event TypeAccident
Event Time00:23 PDT
Nearest AirportHillsboro (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftStinson 108-2
Tail NumberN9443K
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsFranklin · 6A4-165-B3 · Reciprocating · 165
Seats4
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 49 · Third Class
Conditions
ConditionsVMC
LightBright Night
WindCalm
CeilingNone
Temperature / Dew Point50 / 0 C
Altimeter0
Weather SourcePILO