NONE · Hiller UH 12E · 2020-02-01 · Dinosaur, CO, USA
Event
NTSB number
CEN20LA073
Event ID
20200202X81855
Type
Accident
Date
2020-02-01
Location
Dinosaur, CO, USA
Coordinates
40.462223, -108.919998
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
3
Total aboard
3
Aircraft
Make
Hiller
Model
UH 12E
Registration
N7173S
FAR Part
135
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
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.