Hiller UH-12E — registry & accident history
Compiled from FAA & NTSB records · as of Jul 24, 2026
There are 528 Hiller UH-12E airframes on record (built 1936–1996), 103 currently registered. 27 have one or more NTSB accident records (30 records total, 1 with a fatal highest-injury classification). Data as of Jul 24, 2026.
Recent Hiller UH-12E accidents
The pilot’s abrupt maneuver to avoid a powerline during an aerial application flight, which resulted in the helicopter’s impact with terrain.
The pilot’s improper fuel planning and fuel management, which resulted in a total loss of engine power due to fuel exhaustion and subsequent impact with terrain during an autorotation.
The pilot’s improper selection of a landing site, which resulted in a main rotor strike. Contributing to the accident was the pilot’s improper performance planning and altitude selection over water, which resulted in an rpm droop.
The in-flight failure of the main rotor mast hub due to several undetected fatigue fractures.
The improper reassembly of the tail rotor gearbox following maintenance, which resulted in fatigue failure of the input pinion gear shaft, and the subsequent loss of tail rotor drive.
A loss of helicopter control for undetermined reasons based on the available evidence for this accident.
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.