NTSB Identification: DEN04LA047.
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Accident occurred Friday, February 13, 2004 in Kremmling, CO
Probable Cause Approval Date: 06/30/2004
Aircraft: Bell 47G-3B-1, registration: N83702
Injuries: 1 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.

According to the pilot, he was practicing autorotations from an altitude of 800 feet agl when "it appeared that the aircraft had inadequate main rotor rpm." The pilot said he attempted to recover to a hover; however, "sufficient rpm was not available to recover," resulting in a hard landing and substantial damage.

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

the pilot's failure to attain landing flare and maintain adequate rotor rpm.

Full narrative available

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