NTSB Identification: SEA88LA097.
The docket is stored on NTSB microfiche number 36314.
Accident occurred Tuesday, May 17, 1988 in CHEMULT, OR
Probable Cause Approval Date: 06/07/1989
Aircraft: HUGHES 369E, registration: N5258C
Injuries: 1 Serious,3 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
THE PILOT WAS ATTEMPTING TO TAKEOFF WITH A DENSITY ALTITUDE OF 6,300 FEET. THE AIRCRAFT WAS OPERATED NEAR ITS MAXIMUM GROSS WEIGHT LIMITATION. 150 FEET FROM THE INITIAL TAKEOFF THE HELICOPTER ROTOR STIRRED UP DUST AND DEBRIS FROM A ROAD, CAUSING THE PILOT TO LOSE VISUAL REFERENCE WITH THE GROUND. THE HELICOPTER'S MAIN ROTOR BLADE STRUCK A TREE AND THE HELICOPTER ROLLED TO ITS LEFT SIDE.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:PERFORMANCE DATA..MISJUDGED..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:VISUAL/AURAL DETECTION..PILOT IN COMMAND
TERRAIN CONDITION..LOOSE OBJECTS
WEATHER CONDITION..HIGH DENSITY ALTITUDE
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