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NTSB Report
December 24, 1988 · Cessna T210L · N94210
Norco, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 24, 1988
Injury Outcomes
2 injuries (2 fatalities)
Location
Norco, CA
Aircraft
Cessna T210L
Tail Number
N94210
Operator
Thrasher Daniel R
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
LAX89FA069
THE PILOT RECEIVED A TELEPHONIC IFR CLEARANCE FROM CHINO TOWER. THE PILOT DEPARTED CORONA AND CONTACTED THE ONTARIO TRACON DEPARTURE CONTROLLER. THE CONTROLLER INSTRUCTED THE PILOT TO RESET HIS TRANSPONDER AND THE PILOT COMPLIED, BUT FAILED TO ACKNOWLEDGE ANY FURTHER TRANSMISSIONS. THE AIRPLANE CRASHED ABOUT ONE MINUTE LATER. THE RECORDED RADAR DATA REVEALED THE AIRPLANE WAS IN A CLIMBING RIGHT TURN, REACHING A MAXIMUM ALTITUDE OF 1,500 FT MSL (1,000 FT AGL) WHEN THE PLT INITIALLY CALLED ONTARIO TRACON. AFTER REACHING 1,500 FT THE AIRPLANE'S RATE OF TURN INCREASED AND IT BEGAN DESCENDING RAPIDLY. THE AIRCRAFT IMPACTED THE TERRAIN IN A 10 DEGREE NOSE LOW, 30 DEGREE RIGHT BANK ATTITUDE. THE INVESTIGATION DID NOT DISCLOSE ANY PREIMPACT MALFUNCTIONS OR FAILURES.
NTSB Probable Cause
ACCIDENT WAS THAT THE PILOT BECAME DISORIENTED AND WAS UNABLE TO ARREST THE ENSUING DESCENDING SPIRALING TURN.
Full Narrative
THE PILOT RECEIVED A TELEPHONIC IFR CLEARANCE FROM CHINO TOWER. THE PILOT DEPARTED CORONA AND CONTACTED THE ONTARIO TRACON DEPARTURE CONTROLLER. THE CONTROLLER INSTRUCTED THE PILOT TO RESET HIS TRANSPONDER AND THE PILOT COMPLIED, BUT FAILED TO ACKNOWLEDGE ANY FURTHER TRANSMISSIONS. THE AIRPLANE CRASHED ABOUT ONE MINUTE LATER. THE RECORDED RADAR DATA REVEALED THE AIRPLANE WAS IN A CLIMBING RIGHT TURN, REACHING A MAXIMUM ALTITUDE OF 1,500 FT MSL (1,000 FT AGL) WHEN THE PLT INITIALLY CALLED ONTARIO TRACON. AFTER REACHING 1,500 FT THE AIRPLANE'S RATE OF TURN INCREASED AND IT BEGAN DESCENDING RAPIDLY. THE AIRCRAFT IMPACTED THE TERRAIN IN A 10 DEGREE NOSE LOW, 30 DEGREE RIGHT BANK ATTITUDE. THE INVESTIGATION DID NOT DISCLOSE ANY PREIMPACT MALFUNCTIONS OR FAILURES.
Flight
Event TypeAccident
Event Time13:13 PST
Nearest AirportCORONA (0nm N)
Runway25
Runway Length3200 ft
Runway Width60 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna T210L
Tail NumberN94210
Aircraft CategoryAir
DamageDestroyed
OperatorThrasher Daniel R
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · TSIO-520-H · Reciprocating · 285
Seats6
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 51 · Third Class
Conditions
ConditionsIMC
LightDaylight
Wind250° @ 5 kt
CeilingOvercast 500 ft
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourceWIT