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NTSB Report
June 23, 1990 · Robinson R22A · N84378
Pinon Hills, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 23, 1990
Injury Outcomes
No injuries (2 uninjured)
Location
Pinon Hills, CA
Aircraft
Robinson R22A
Tail Number
N84378
Operator
Sundance Helicopters
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX90LA227
THE RECENTLY CERTIFICATED 200-POUND PILOT AND HIS 190-POUND PASSENGER LANDED WITHOUT DIFFICULTY AT A 4000-FOOT MSL SITE. ABOUT 15 MINUTES LATER, WITH AN AIR TEMPERATURE OF 92 DEGREES F, THE PILOT AND PASSENGER ATTEMPTED TO TAKEOFF. THE HELICOPTER CLIMBED 30 FEET ABOVE THE GROUND AND THEN LOST ROTOR RPM. THE PILOT LOST CONTROL AND DESCENDED INTO TREES. THE COMPUTED DENSITY ALTITUDE WAS APPROXIMATELY 6950 FEET.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN ADEQUATE ROTOR RPM DURING AN ATTEMPTED TAKEOFF. A CONTRIBUTING FACTOR WAS THE HIGH DENSITY ALTITUDE.
Full Narrative
THE RECENTLY CERTIFICATED 200-POUND PILOT AND HIS 190-POUND PASSENGER LANDED WITHOUT DIFFICULTY AT A 4000-FOOT MSL SITE. ABOUT 15 MINUTES LATER, WITH AN AIR TEMPERATURE OF 92 DEGREES F, THE PILOT AND PASSENGER ATTEMPTED TO TAKEOFF. THE HELICOPTER CLIMBED 30 FEET ABOVE THE GROUND AND THEN LOST ROTOR RPM. THE PILOT LOST CONTROL AND DESCENDED INTO TREES. THE COMPUTED DENSITY ALTITUDE WAS APPROXIMATELY 6950 FEET.
Flight
Event TypeAccident
Event Time12:30 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRobinson R22A
Tail NumberN84378
Aircraft CategoryHeli
DamageSubstantial
OperatorSundance Helicopters
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2C · Reciprocating · 124
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 29 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind225° @ 8 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO