- Date
- April 17, 2021, 14:00 local (21:00 UTC)
- Place
- Hermiston, OR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N51080Thrush S2R-T660
- Defining event
- Takeoff: Landing gear collapse
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- FAA
- FAA report
- 20210417001249A
- Case key
- 102936
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot’s loss of directional control due to a blown tire, which resulted in a runway excursion and impact with terrain.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
The pilot of the tailwheel-equipped airplane reported that, during the takeoff roll, the left main landing gear tire failed. The airplane veered left, exited the runway and impacted terrain. The right wing and the engine truss sustained substantial damage. The pilot added that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N51080
- Reported as
- Thrush S2R-T660 (NO SERIES)
- Category
- Airplane
- Serial number
- T660-158DC
- Built
- 2020
- Airframe hours
- 130
- Engine
- Pratt & Whitney PT6-67AG, 1,350 horsepower, turbo prop
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- K2 Aerial Application LLC
- Registered owner
- K2 Aerial Application LLC
- Airworthiness certificate
- Standard, Normal; Special, Restricted (Special)
- Last inspection
- Continuous airworthiness · April 9, 2021
- Destination
- Same as departure
- Airport
- HRI · Hermiston Muni, runway 05/23, 4,501 × 75 ft, asphalt
- Equipment
- ADS-B, Stall warning system
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 36
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Medical
- Class 2, Without waivers/limitations
- Last flight review
- November 4, 2019
- Seat
- Front
- Restraint
- 4-point
- Flight hours
- 2,700 total · 2,500 as pilot in command · 12 in the last 90 days · 7 in the last 30 days · 0 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 5 knots
- Visibility
- 10 statute miles
- Temperature
- 75 °F, dew point 28 °F
- Altimeter
- 30.22 inHg
- Observed at
- HRI
Docket · 3
The files NTSB released with the investigation on September 1, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.7 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.