NTSB Identification: FTW04LA117.
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Accident occurred Tuesday, April 27, 2004 in Hurst, TX
Probable Cause Approval Date: 07/29/2004
Aircraft: Bell 407, registration: N407BP
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 recurrent training flight, the 1,413-hour commercial pilot who was receiving the training, and was at the controls, initiated a full-touchdown practice autorotation in the single engine helicopter. During the landing "flare," just prior to touchdown, the helicopter’s pitch attitude became "excessively" nose high. Subsequently, the tailboom stinger struck the ground, which resulted in structural damage to the tailboom. The 13,200-hour CFI stated that he was "unable to correct the aircraft attitude" before the stinger struck the ground. The helicopter was operating normally during the flight, and post-accident examination of the flight controls did not reveal anomalies that could have contributed to the accident.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: The student pilot's excessive flare prior to touchdown during the practice autorotation which resulted in the tailboom stinger striking the ground. A contributing factor was the flight instructor's delay to take remedial action. Full narrative available
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