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NTSB Report
July 14, 1992 · Krug Lincoln Sportplane Lincoln SP · N377JK
Corona, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 14, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Corona, CA
Aircraft
Krug Lincoln Sportplane Lincoln SP
Tail Number
N377JK
Operator
Krug John A
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX92LA297
THE PILOT/BUILDER COMPLETED A HIGH SPEED TAXI TEST ON THE RUNWAY BEFORE DEPARTING ON THE EXPERIMENTAL AIRPLANE'S FIRST FLIGHT. DURING THE TAKEOFF THE AIRPLANE FAILED TO CLIMB AFTER IT TRANSITIONED FROM GROUND EFFECT. THE ENGINE RPM WAS ADEQUATE, BUT THE AIRPLANE WOULD NOT CLIMB. THE REMAINING RUNWAY WAS INADEQUATE FOR A LANDING AND THE PILOT ATTEMPTED TO GAIN ALTITUDE BY INCREASING THE FLYING SPEED, BUT TO NO AVAIL. THE ALTITUDE WAS INSUFFICIENT AND THE AIRPLANE COLLIDED WITH THE TREES AT THE END OF THE RUNWAY. THE PILOT/BUILDER REPORTED THAT THE PROPELLER THRUST EFFICIENCY WAS INADEQUATE TO PRODUCE THE REQUIRED THRUST FOR CLIMB.
NTSB Probable Cause
THE PILOT/BUILDER INADEQUATE PROPELLER COMPONENT RESULTING IN AN INADEQUATE CLIMB PERFORMANCE. CONTRIBUTING TO THIS ACCIDENT WAS THE AIRPLANE'S INABILITY TO CLIMB.
Full Narrative
THE PILOT/BUILDER COMPLETED A HIGH SPEED TAXI TEST ON THE RUNWAY BEFORE DEPARTING ON THE EXPERIMENTAL AIRPLANE'S FIRST FLIGHT. DURING THE TAKEOFF THE AIRPLANE FAILED TO CLIMB AFTER IT TRANSITIONED FROM GROUND EFFECT. THE ENGINE RPM WAS ADEQUATE, BUT THE AIRPLANE WOULD NOT CLIMB. THE REMAINING RUNWAY WAS INADEQUATE FOR A LANDING AND THE PILOT ATTEMPTED TO GAIN ALTITUDE BY INCREASING THE FLYING SPEED, BUT TO NO AVAIL. THE ALTITUDE WAS INSUFFICIENT AND THE AIRPLANE COLLIDED WITH THE TREES AT THE END OF THE RUNWAY. THE PILOT/BUILDER REPORTED THAT THE PROPELLER THRUST EFFICIENCY WAS INADEQUATE TO PRODUCE THE REQUIRED THRUST FOR CLIMB.
Flight
Event TypeAccident
Event Time06:30 PDT
Nearest AirportCorona Municipal (1nm WSW)
Runway25
Runway Length3200 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftKrug Lincoln Sportplane Lincoln SP
Tail NumberN377JK
Aircraft CategoryAir
DamageSubstantial
OperatorKrug John A
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsVolkswagen · 1600 CC · Reciprocating · 41
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 48 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO