BELL 206B3
Glendale, AZ — May 27, 2011
Event Information
| Date | May 27, 2011 |
| Event Type | ACC |
| NTSB Number | WPR11CA243 |
| Event ID | 20110602X93617 |
| Location | Glendale, AZ |
| Country | USA |
| Coordinates | 33.52917, -112.29667 |
| Airport | Glendale Municipal Airport |
| Highest Injury | NONE |
Aircraft
| Make | BELL |
| Model | 206B3 |
| Category | HELI |
| FAR Part | 091 |
| Aircraft Damage | SUBS |
Conditions
| Light Condition | DAYL |
| Weather | VMC |
Injuries
| Fatal | 0 |
| Serious | 0 |
| Minor | 0 |
| None | 2 |
| Total Injured | 0 |
Event Location
Probable Cause
The certified flight instructor's failure to maintain adequate main rotor RPM during the autorotation.
Full Narrative
The certified flight instructor reported that he took off in the helicopter to show a student pilot a demonstration of various maneuvers. Near the end of the flight the instructor demonstrated a power on autorotation but he was late rolling on the throttle and did not have sufficient rotor RPM to recover the helicopter before impacting the ground. Upon ground impact the helicopter's tail rotor drive shaft and main rotor blades were damaged. The pilot reported no pre-impact mechanical malfunctions of failures with the airframe or the engine that would have precluded normal operation.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.