ASN Wikibase Occurrence # 226854
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| Date: | Monday 25 July 2016 |
| Time: | 10:50 |
| Type: | Texas Helicopter M74A Wasp (Bell OH-13H) |
| Owner/operator: | Hendrickson Flying Service |
| Registration: | N10009 |
| MSN: | 79-032 |
| Year of manufacture: | 1979 |
| Engine model: | Lycoming VO-435 A1F |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Minonk, IL -
 United States of America
|
| Phase: | |
| Nature: | Agricultural |
| Departure airport: | Minook, IL |
| Minook, IL | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During reloading operations for an agricultural flight, the nurse truck was parked on the right shoulder of a road, facing west. The helicopter was parked on the elevated helipad on top of the nurse truck, facing north, with the engine running and rotor blades turning. The helicopter's tail boom and rotor disk extended about 8-10 ft over the road. As the loader was reloading the helicopter's product tanks, a westbound semi-trailer truck drove underneath the rotor disk and struck the helicopter's tail boom. The semi-trailer truck driver said he thought he had enough clearance to pass safely under the helicopter's tail rotor. The pilot said that if the nurse truck had parked closer to an adjoining field, the platform would have a tilt, making it difficult to land for servicing. It is likely that the semi-trailer truck driver failed to ensure that he had adequate clearance to pass under the helicopter and that the loader failed to park in a safer area for the reloading operations.
Probable Cause: Failure of the truck driver to ensure that he had adequate clearance to pass under the helicopter and the failure of the loader to park in a safer area for reloading operations.
Accident investigation:
 |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft
| 27 July 2011 | N10009 | Hendrickson Flying Service Inc | 0 | Creston, Illinois | |
sub |
| 29 July 2013 | N10009 | Hendrickson Flying Service Inc | 0 | Streator, Illinois | |
sub |
| CFIT | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 06-Jul-2019 19:35 | ASN Update Bot | Added |
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