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NTSB Report
June 25, 1990 · Spark/Acroduster SA/750 · N10WS
Redlands, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 25, 1990
Injury Outcomes
2 injuries (2 serious injuries)
Location
Redlands, CA
Aircraft
Spark/Acroduster SA/750
Tail Number
N10WS
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
LAX90DUG07
THE PILOT DEPARTED WITH FUEL TANKS HALF FULL FOR SOME ACROBATIC WORK. THE AIRCRAFT WAS AIRBORNE FOR OVER AN HOUR AND 20 MINUTES WHEN THE ENGINE BEGAN TO SPUTTER AFTER A TOUCH AND GO LANDING AND A STEEP CLIMBOUT. ACCORDING TO THE SECOND PILOT ON BOARD THE PILOT STALLED THE AIRCRAFT IN AN ATTEMPT TO RETURN TO THE RUNWAY. WITNESSES ON THE GROUND HEARD THE SPUTTER FROM THE ENGINE AND OBSERVED A TIGHT TURN BACK TO THE RUNWAY. EXAMINATION OF THE WRECKAGE REVEALED NO PRESENCE OF FUEL IN THE TANKS OR FUEL LINES.
NTSB Probable Cause
THE PILOTS FAILURE TO MAINTAIN A SPEED ABOVE A STALL AFTER EXPERIENCING A LOSS OF ENGINE POWER. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S MISCALCULATION OF THE FUEL SUPPLY.
Full Narrative
THE PILOT DEPARTED WITH FUEL TANKS HALF FULL FOR SOME ACROBATIC WORK. THE AIRCRAFT WAS AIRBORNE FOR OVER AN HOUR AND 20 MINUTES WHEN THE ENGINE BEGAN TO SPUTTER AFTER A TOUCH AND GO LANDING AND A STEEP CLIMBOUT. ACCORDING TO THE SECOND PILOT ON BOARD THE PILOT STALLED THE AIRCRAFT IN AN ATTEMPT TO RETURN TO THE RUNWAY. WITNESSES ON THE GROUND HEARD THE SPUTTER FROM THE ENGINE AND OBSERVED A TIGHT TURN BACK TO THE RUNWAY. EXAMINATION OF THE WRECKAGE REVEALED NO PRESENCE OF FUEL IN THE TANKS OR FUEL LINES.
Flight
Event TypeAccident
Event Time12:54 PDT
Nearest AirportREDLANDS (0nm N)
Runway26
Runway Length4500 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSpark/Acroduster SA/750
Tail NumberN10WS
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · IO-360-A1B · Reciprocating · 200
Seats2
People & Injuries
Injury Summary2 injuries (2 serious injuries)
Fatal0
Serious2
Minor0
Uninjured0
Total2
Crew 1Age 25 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourceWIT