NTSB Identification: SEA88LA150.
The docket is stored on NTSB microfiche number 36619.
Accident occurred Wednesday, August 10, 1988 in LEAVENWORTH, WA
Probable Cause Approval Date: 09/29/1989
Aircraft: HILLER UH-12E, registration: N62404
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.

THE PIC REPORTED THAT DURING A PRACTICE HELICOPTER AUTOROTATION TO A POWER RECOVERY, THE PILOT UNDER INSTRUCTION HELD THE FLARE TOO LONG. THE HELICOPTER'S TAIL GUARD AND TAIL ROTOR STRUCK THE GROUND AND THE AIRCRAFT BEGAN TO SPIN. THE PIC REDUCED THE THROTTLE AND THE AIRCRAFT SETTLED TO THE GROUND. THE PIC REPORTED THAT HE HAD GLANCED AT THE INSTRUMENTSAND WHEN HE LOOKED UP HE REALIZED THE ATTITUDE WAS TOO NOSE HIGH. HE ASSUMED CONTROL OF THE AIRCRAFT TOO LATE TO PREVENT THE IMPACT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLARE..IMPROPER..DUAL STUDENT

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

SUPERVISION..INADEQUATE..PILOT IN COMMAND(CFI)

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