Aug 23, 2024
Accident
Substantial Marianna, FL
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The student pilot’s failure to maintain rotor rpm during a simulated autorotation, which allowed for a resonance phenomenon to develop. Contributing to the accident was the flight instructor’s inadequate monitoring of the student pilot’s collective control inputs.
NTSB ERA24LA399