ASN Wikibase Occurrence # 238169
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| Date: | Tuesday 14 July 2020 |
| Time: | 14:55 LT |
| Type: |  Air Tractor AT-802A Fire Boss |
| Owner/operator: | Aero Spray Inc |
| Registration: | N80166 |
| MSN: | 802A-0685 |
| Year of manufacture: | 2017 |
| Total airframe hrs: | 349 hours |
| Engine model: | Pratt & Whitney PT6A-67F |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Fort Yukon, AK -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Fire fighting |
| Departure airport: | Fairbanks-Fort Wainwright Airport, AK (FBK/PAFB) |
| Fairbanks-Fort Wainwright Airport, AK (FBK/PAFB) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The mission-specific modified airplane was used to support wildland firefighting operations. It was equipped with amphibious floats that routed water through a dual scoop system to a hopper located in the airplane. The scoops could be manually deployed by a switch located on the control stick.
According to the pilot, on the 28th scoop of the day, he touched down on the surface of the water and deployed the scoops to begin filling the airplane's hopper when the airplane veered to the right. In an effort to correct for the veer, he released the scoop switch and applied left rudder to no avail. He retarded the throttle and applied reverse thrust as the airplane began to impact trees located on the lake's shoreline. The airplane came to rest upright in a marshy area on the lake's shoreline sustaining substantial damage to the right wing.
A series of detailed examinations of the airplane, including its water scoop system, revealed no preaccident mechanical failures or malfunctions that would have precluded normal operations.
Probable Cause: A loss of control for undetermined reasons while on the surface of the water during scoop operations in support of wildland firefighting operations.
Accident investigation:
 |
|
Sources:
NTSB ANC20LA069
https://flightaware.com/live/flight/N80166
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Jul-2020 04:42 | Geno | Added |
| 03-Mar-2021 21:13 | rudy | Updated [Source] |
| 27-Jun-2022 12:31 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Destination airport, Source, Narrative, Category, Accident report] |
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