- Date
- July 26, 2018, 11:30 local (16:30 UTC)
- Place
- Iowa, LA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N254LAAir Tractor AT502
- Defining event
- Landing-landing roll: Runway excursion
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 5, 2019
- Report
- Approved by Office Director
- NTSB office
- General Aviation Accidents
- Parties
- FAA
- FAA report
- 20180726018069A
- Case key
- 97905
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 failure to maintain directional control during the landing roll.
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
According to the pilot in the tailwheel-equipped, restricted-category airplane, he had performed an agricultural flight and was landing to take on another load. He made a three-point landing with full flaps and closed the throttle. He stated that, during the landing roll, the airplane "turned violently to the right and got very light on the gear." The airplane’s nose had turned 45° right of the runway centerline, so he applied left brake and left rudder and then he added power. As the power increased, the airplane rolled left. The left wing struck the ground, and the pilot pulled the throttle to idle and then he applied reverse thrust and full brakes. However, the airplane exited the runway and collided with a drainage culvert. The airplane sustained substantial damage to the left wing spar and aileron. The pilot reported that, about the time of the accident, the wind was light and variable, but dust devils were present. Additionally, he reported that the accident could have been prevented by landing at a higher airspeed to keep airflow over the rudder and by minimizing the engine thrust. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Factual narrative
According to the pilot in the tailwheel-equipped, restricted category airplane, he had performed an agricultural flight and was landing to take on another load. He made a three-point landing with full flaps and closed the throttle. During the landing roll, the airplane "turned violently to the right and got very light on the gear." The nose of the airplane had turned 45° to the right of the runway centerline, so he applied left brake and left rudder, and then he added power. As the power increased, and the airplane rolled to the left. He reported that the left wing struck the ground and he pulled the throttle to idle, and then he applied reverse thrust and full brakes. However, the airplane exited the runway and collided with a drainage culvert. The airplane sustained substantial damage to the left wing spar and aileron. The pilot reported that about the time of the accident the wind was light and variable, but dust devils were present. Additionally, he reported that the accident could have been prevented by landing at a higher airspeed to keep air flow over the rudder, and by minimizing the engine thrust. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N254LA
- Reported as
- Air Tractor AT502 (A)
- Category
- Airplane
- Serial number
- 502A-3054
- Built
- 2016
- Airframe hours
- 965
- Engine
- Pratt & Whitney PT6A-140AG, 867 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Obrien's Flying Service Inc
- Registered owner
- Obrien's Flying Service Inc
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · February 20, 2018
- Departed
- LA71 · Iowa, LA
- Destination
- LA71 · Iowa, LA
- Airport
- LA71 · O'Brien Flying Service, runway 03, 3,800 × 100 ft, grass/turf
- Equipment
- None
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
- 53
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- April 20, 2018
- Seat
- Single
- Restraint
- 5-point
- Flight hours
- 21,639 total · 965 in this make and model · 21,502 as pilot in command · 310 in the last 90 days · 105 in the last 30 days · 6 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F, dew point 68 °F
- Altimeter
- 30.01 inHg
- Observed at
- KCWF, 7 nm away
Docket · 2
The files NTSB released with the investigation on March 22, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.7 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.
Other investigations on N254LA · 1
Matched to the same aircraft by N-number and date.