NTSB Identification: LAX01LA305.
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Accident occurred Sunday, September 23, 2001 in Carlsbad, CA
Probable Cause Approval Date: 02/25/2003
Aircraft: Hughes 369D, registration: N268ST
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 training, the flight instructor (CFI) directed his student to perform a full touchdown autorotation, and the maneuver commenced. While descending, the student allowed the main rotor rpm to decay. Also, the CFI recognized that the desired touchdown location was farther than their flight profile would allow, so he attempted to "stretch the glide distance" by using collective rather than by adding engine power. The landing flare was delayed, and when touchdown occurred the main rotors impacted the tail boom.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A hard landing due to the dual student's failure to maintain main rotor speed, his improper landing flare, and the flight control interference by the flight instructor. Full narrative available
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