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NTSB Report
June 7, 1990 · Hughes 269B · N691RR
Paso Robles, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 7, 1990
Injury Outcomes
No injuries (3 uninjured)
Location
Paso Robles, CA
Aircraft
Hughes 269B
Tail Number
N691RR
Operator
Dolezal Todd R
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX90LA210
THE PILOT SAID HE WAS FLYING UP A VALLEY IN ROLLING HILL CONTRY AND ENCOUNTERED A SEVERE AND SUDDEN GUST OF WIND AS THE HELICOPTER FLEW OVER A RIDGE LINE AT A VERY LOW ALTITUDE. THE PILOT SAID THE WIND GUST WAS ACCCOMPANIED BY STRONG TURBULENCE AND A SEVERE DOWN DRAFT. THE PILOT SAID THE HELICOPTER WAS FORCED DOWNWARD INTO THE GROUND AND HE WAS ABLE TO ARREST THE DESCENT AND MAKE A NORMAL SOFT TOUCH DOWN ON THE CREST OF THE RIDGE. THE PILOT SAID THE HELICOPTER ROLLED OVER ON ITS SIDE JUST AFTER TOUCH DOWN.
NTSB Probable Cause
THIS ACCIDENT WAS DYNAMIC ROLLOVER DUE TO THE TERRAIN SLOPE EXCEEDING THE CAPABILITY OF THE HELICOPTER.
Full Narrative
THE PILOT SAID HE WAS FLYING UP A VALLEY IN ROLLING HILL CONTRY AND ENCOUNTERED A SEVERE AND SUDDEN GUST OF WIND AS THE HELICOPTER FLEW OVER A RIDGE LINE AT A VERY LOW ALTITUDE. THE PILOT SAID THE WIND GUST WAS ACCCOMPANIED BY STRONG TURBULENCE AND A SEVERE DOWN DRAFT. THE PILOT SAID THE HELICOPTER WAS FORCED DOWNWARD INTO THE GROUND AND HE WAS ABLE TO ARREST THE DESCENT AND MAKE A NORMAL SOFT TOUCH DOWN ON THE CREST OF THE RIDGE. THE PILOT SAID THE HELICOPTER ROLLED OVER ON ITS SIDE JUST AFTER TOUCH DOWN.
Flight
Event TypeAccident
Event Time17:25 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftHughes 269B
Tail NumberN691RR
Aircraft CategoryHeli
DamageSubstantial
OperatorDolezal Todd R
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · HIO-360-A1A · Reciprocating · 180
Seats3
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 26 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind310° @ 23 kt, gusting 30 kt
Visibility50 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO