NTSB Identification: LAX84LA108.
The docket is stored on NTSB microfiche number 23045.
Accident occurred Wednesday, December 21, 1983 in EL CAJON, CA
Aircraft: BELL 47G, registration: N4475
Injuries: 2 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
DURING A DEMONSTRATION TO SHOW HIS STUDENT HOW TO AUTOROTATE FM A 2 FT HEIGHT AGL THE INSTRUCTOR REDUCED PWR AND INADVERTENTLY APPLIED FWD CYCLIC. THE FRONT PORTION OF THE SKIDS HIT THE GD FOLLOWED BY THE MAIN ROTOR BLADES. HELICOPTER THEN ROCKED BACKWARDS, THE REAR PORTION OF THE SKIDS IMPACTED THE GD AND THE MAIN ROTOR BLADES SLICED THROUGH THE TAILBOOM.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:LEVEL OFF..NOT MAINTAINED..PILOT IN COMMAND
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