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NTSB Report
February 16, 1990 · Robinson R-22 BETA · N777FH
Corona, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 16, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Corona, CA
Aircraft
Robinson R-22 BETA
Tail Number
N777FH
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX90LA091
THE INSTRUCTOR PILOT REPORTEDLY HAD A LOSS OF ENGINE POWER DURING A SIMULATED ENGINE FAILURE. THE ENGINE OIL WARNING LIGHT ILLUMINATED WITH THE ROTOR RPM IN THE GREEN ARC. THE AUTOROTATION IN A DIRT FIELD FOUND THE TOES OF THE SKIDS DIGGING INTO THE GROUND WHICH ROLLED THE AIRCRAFT OVER ONTO ITS SIDE. THERE WAS NO EVIDENCE OF AN ENGINE MALFUNCTION NOR DID THE PILOT REPORT ANY MECHANICAL MALFUNCTION OR FAILURE IN HIS REPORT.
NTSB Probable Cause
HELICOPTER ROLLING OVER IN A DIRT FIELD AFTER THE PILOT WAS DEMONSTRATING AN ENGINE FAIURE AND AUTOROTATION MANEUVER.
Full Narrative
THE INSTRUCTOR PILOT REPORTEDLY HAD A LOSS OF ENGINE POWER DURING A SIMULATED ENGINE FAILURE. THE ENGINE OIL WARNING LIGHT ILLUMINATED WITH THE ROTOR RPM IN THE GREEN ARC. THE AUTOROTATION IN A DIRT FIELD FOUND THE TOES OF THE SKIDS DIGGING INTO THE GROUND WHICH ROLLED THE AIRCRAFT OVER ONTO ITS SIDE. THERE WAS NO EVIDENCE OF AN ENGINE MALFUNCTION NOR DID THE PILOT REPORT ANY MECHANICAL MALFUNCTION OR FAILURE IN HIS REPORT.
Flight
Event TypeAccident
Event Time07:50 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R-22 BETA
Tail NumberN777FH
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2C · Reciprocating · 160
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 25 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility15 sm
CeilingBroken clouds 6000 ft
Temperature / Dew Point45 C / 0 C
Altimeter0
Observation Time08:00
Weather SourcePILO