Hiller UH 12 Safety Record
Complete NTSB accident and incident history. 16 events recorded from 1983 to 2020.
| Date | Location | Reg# | Severity | Damage | Probable Cause |
|---|---|---|---|---|---|
| Feb 01, 2020 | Dinosaur, CO | N7173S | Incident | substantial |
Failure of a S4 compressor blade due to a fatigue crack that likely initiated at a corrosion pit. Contributing to the accident was maintenance personn…Failure of a S4 compressor blade due to a fatigue crack that likely initiated at a corrosion pit. Contributing to the accident was maintenance personnel’s failure to detect the corrosion pits during maintenance. |
| Sep 20, 2018 | Frankfort, KS | N1349A | Incident | substantial |
The ground crewmember's improper grabbing of the hovering helicopter's skid during an external load hook-up, which resulted in the helicopter descendi…The ground crewmember's improper grabbing of the hovering helicopter's skid during an external load hook-up, which resulted in the helicopter descending and the main rotors striking ground equipment. |
| Sep 11, 2017 | Griffith, IN | N2686 | Incident | substantial | The loss of tail rotor thrust due to a failed tail rotor driveshaft, which resulted in a loss of tail rotor control and a hard landing. |
| Mar 29, 2015 | Firebaugh, CA | N130HA | Incident | substantial |
A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would…A loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. |
| Jul 26, 2014 | Wadesboro, NC | N107HA | Incident | substantial |
A partial loss of engine power due to the failure of the No. 2 engine accessory gearbox bearing for reasons that could not be determined based on the …A partial loss of engine power due to the failure of the No. 2 engine accessory gearbox bearing for reasons that could not be determined based on the available information. |
| Dec 09, 2013 | Chowchilla, CA | N36MV | Incident | substantial | The failure of the torsional drive coupling, which resulted in a loss of drive to the main rotor system during low-altitude flight. |
| Sep 22, 2005 | Five Points, CA | N141HA | Incident | substantial | The pilot's failure to refuel the helicopter, which resulted in fuel exhaustion. |
| Sep 07, 1986 | GONZALES, CA | N149HA | Incident | substantial | Investigation pending |
| Jul 08, 1983 | LANCASTER, CA | N64861 | Incident | substantial | Investigation pending |