Probable cause
The pilot's failure to maintain adequate skid clearance from the helicopter cart during landing, resulting in a dynamic rollover.
NTSB analysis
According to the pilot, he was landing the helicopter on a helicopter cart when its skid got caught on the cart and the helicopter subsequently rolled over. The pilot reported there were no mechanical malfunctions with the helicopter during the flight, and substantial damage was sustained to the helicopter tailboom when it rolled. Dynamic rollover is the tendency of a helicopter to continue rolling when the critical angle is exceeded, if one skid is on the ground, and the helicopter is pivoting around that point. Dynamic rollover is possible when a skid is caught by a projection on the surface or when landing on a slope.
Text from the NTSB. Open the NTSB docket for CEN11CA524 for the full record.
Event
- Date
- Jul 28, 2011
- Type
- Accident
- Place
- Creston, Illinois
- Nearest airport
- Hendrickson Flying Service (IL93)
- Highest injury
- Minor
- Minor injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Texas Helicopter Corp OH-13H/M74A
- N-number
- N10009
- Category
- Helicopter
- Damage
- Substantial
- Operating rule
- Part 137 (agricultural)
- Purpose of flight
- Aerial application
Other records under this N-number
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.