WALTER S JOHNSON III AR-1
Butler, PA — June 11, 2022
Event Information
| Date | June 11, 2022 |
| Event Type | ACC |
| NTSB Number | ERA22LA269 |
| Event ID | 20220616105269 |
| Location | Butler, PA |
| Country | USA |
| Coordinates | 40.77658, -79.95108 |
| Airport | PITTSBURGH/BUTLER RGNL |
| Highest Injury | NONE |
Aircraft
| Make | WALTER S JOHNSON III |
| Model | AR-1 |
| 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 |
Probable Cause
The pilot’s failure to monitor rotor disk speed on takeoff, which resulted in blade flapping and the main rotor blades striking the gyroplane’s tail assembly.
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.