NTSB Identification: CHI08CA020.
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Accident occurred Wednesday, December 05, 2007 in Hazelton, IN
Probable Cause Approval Date: 02/28/2008
Aircraft: Schweizer 269C, registration: N75068
Injuries: 1 Serious.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot initiated an intentional autorotation to a landing site at the destination airport. He recalled that after entering the autorotation, the helicopter drifted and that reaching the intended touchdown point became questionable. The pilot reported that he had intended to add power and continue to the intended landing site, but the helicopter did not seem to respond as expected. The pilot was unable to reduce the descent rate and the helicopter subsequently impacted the ground at the point of intended landing. A post accident inspection did not reveal any anomalies associated with the helicopter.

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

The pilot's failure to maintain adequate main rotor speed during the intentional autorotation, and his subsequent inability to reduce the descent rate prior to impact. A contributing factor was the intentional autorotation initiated by the pilot.

Full narrative available

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