Final
None
Aug 23, 2024
N945TC accident at Marianna, FL
Bell Textron Canada Ltd 505 — Ground resonance at MAI (Marianna, FL)
DateAug 23, 2024
Tail numberN945TC
AircraftBell 505 · Bell Jet Ranger X · B505
LocationMAI — Marianna, FL
Phase of flightLanding
OperationPart 91 Instructional
InjuriesNone
NTSB caseERA24LA399
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.
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