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NTSB Report
March 16, 1991 · Clyde L King Osprey II · N69CK
Aurora, OR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
March 16, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Aurora, OR
Aircraft
Clyde L King Osprey II
Tail Number
N69CK
Operator
Clyde L King
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA067
THE PILOT OF THE AMATEUR-BUILT OSPREY II AMPHIBIAN COLLIDED WITH TREES AFTER THE AIRCRAFT SUSTAINED A POWER LOSS. THE ELECTRIC AUTOMOTIVE-TYPE BOOST PUMP WAS KNOWN TO SUSTAIN A PRESSURE DROP FROM 6 PSI TO .5 PSI AFTER THREE MINUTES OF OPERATION. THAT PUMP WAS USED TO PUMP FUEL FROM THE FUSELAGE TANKS TO THE PEDESTAL-MOUNTED ENGINE.
NTSB Probable Cause
A LOSS OF ENGINE POWER DUE TO FUEL STARVATION BECAUSE OF AN INADEQUATE COMPONENT AND INADEQUATE FUEL SYSTEM DESIGN.
Full Narrative
THE PILOT OF THE AMATEUR-BUILT OSPREY II AMPHIBIAN COLLIDED WITH TREES AFTER THE AIRCRAFT SUSTAINED A POWER LOSS. THE ELECTRIC AUTOMOTIVE-TYPE BOOST PUMP WAS KNOWN TO SUSTAIN A PRESSURE DROP FROM 6 PSI TO .5 PSI AFTER THREE MINUTES OF OPERATION. THAT PUMP WAS USED TO PUMP FUEL FROM THE FUSELAGE TANKS TO THE PEDESTAL-MOUNTED ENGINE.
Flight
Event TypeAccident
Event Time09:45 PST
Nearest AirportAurora State (0nm N)
Runway17
Runway Length4104 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftClyde L King Osprey II
Tail NumberN69CK
Aircraft CategoryAir
DamageSubstantial
OperatorClyde L King
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-E2D · Reciprocating · 150
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 57 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 4 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO