NONE · ROBINSON R-22 HP · 1991-01-25 · SCOTTSDALE, AZ, USA
Event
NTSB number
LAX91LA079
Event ID
20001212X16339
Type
Accident
Date
1991-01-25
Location
SCOTTSDALE, AZ, USA
Coordinates
33.610881, -111.890846
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
1
Total aboard
1
Aircraft
Make
ROBINSON
Model
R-22 HP
Registration
N21439
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
THE FAILURE OF THE DRIVE BELTS DUE TO EXCESSIVE WEAR OF THE CLUTCH ASSEMBLY UPPER SHEAVE AND THE PILOT'S INACCURATE FLARE DURING THE TERMINATION OF THE AUTOROTATION. A FACTOR IN THE ACCIDENT WAS THE INADEQUATE DESIGN OF THE CLUTCH ASSEMBLY UPPER SHEAVE.