ASN Wikibase Occurrence # 233812
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Date: | Friday 12 April 2019 |
Time: | 11:38 |
Type: | Bell 206L-4 LongRanger IV |
Owner/operator: | Florida Keys Mosquito Control District |
Registration: | N173MS |
MSN: | 52256 |
Year of manufacture: | 2000 |
Total airframe hrs: | 3039 hours |
Engine model: | Rolls Royce 250-C30P |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Big Pine, FL -
United States of America
|
Phase: | Standing |
Nature: | Unknown |
Departure airport: | Marathon, FL (MTH) |
Destination airport: | Marathon, FL (MTH) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot reported that, after the fourth aerial application flight of the day, he landed and positioned the helicopter near the autoloader boom truck. He reduced engine power to flight idle, and the ground crew began the loading process. He verified that the collective position was full down and the cyclic friction was on, and he then exited the helicopter to stretch while maintaining one hand on the cyclic. The pilot reported that, immediately after, while standing next to the helicopter, he heard two "loud bangs." He immediately boarded the helicopter, the ground crew secured the truck’s boom, and the pilot shut down the engine.
Examination revealed that a main rotor blade had struck the truck’s boom arm and that the main rotor blades sustained substantial damage.
The director of aerial operations reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Probable Cause: The pilot's failure to maintain helicopter control while it was being reloaded with the rotors turning in gusting wind conditions, which resulted in a rotor strike with ground equipment.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | GAA19CA209 |
Status: | Investigation completed |
Duration: | 11 months |
Download report: | Final report |
|
Sources:
NTSB
Location
Revision history:
Date/time | Contributor | Updates |
10-Mar-2020 09:41 |
ASN Update Bot |
Added |
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