Air Tractor INC AT-502B accident near Ogden, Utah, July 7, 2026
On July 7, 2026 at about 6:59 pm local time, a 2008 Air Tractor INC AT-502B, registered N647LA, was substantially damaged in an accident during landing (landing roll) near Ogden, Utah (Ogden-Hinckley airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 7, 2026 · about 6:59 pm local time
- Place
- Ogden, Utah · Ogden-Hinckley · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Air Tractor INC AT-502B, built 2008 · all AT-502Bs on the register
- Registration
- N647LA · registry record · serial 502B-2647
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative preliminary · quoted from the NTSB record
On July 7, 2026, about 1259 mountain daylight time, an Air Tractor, Inc. AT-502B airplane, N647LA, was substantially damaged when it was involved in an accident near Ogden, Utah. The commercial pilot was not injured. The flight was conducted as a Title 14 Code of Federal Regulations Part 137 aerial application flight. The pilot reported that before takeoff, the left brake felt less effective than normal. He performed a brake check and subsequently departed to conduct a mosquito spray operation. During the takeoff roll, the pilot felt an abnormal flutter in the left brake pedal and considered aborting the takeoff. However, given the airplane’s weight, speed and position on the runway, he determined that continuing the takeoff presented less risk than attempting to stop. After departure, he sent a text message to company maintenance personnel advising that he suspected a problem with the left brake and that it would require inspection. Upon returning to the airport he performed a wheel landing, during which the main landing gear contacted the runway before the tailwheel. After the tailwheel settled onto the runway, the airplane began veering to the right. The pilot applied full left rudder, followed by left brake; however, the airplane continued to veer right. He then applied reverse engine thrust to further slow the airplane’s speed. The left main landing gear subsequently collapsed, and the airplane rotated about 180° to the right, which resulted in substantial damage to the fuselage, left wing, and left aileron. The airplane then exited the runway and came to rest near the right side runway edge. Postaccident examination of the left main gear assembly revealed that the wheel hub grease cap, cotter pin, wheel nut and outer wheel bearing were missing from the left wheel axle assembly. The outer face of the wheel exhibited impact gouges, and the brake components had a dark, wet appearance. The backing plate attached to the main landing gear spring exhibited a crack that ran the length of the plate. A search of the airport grounds did not locate the missing components. The left main landing gear assembly was retained for further examination.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Loss of control on ground during landing (landing roll)
- Part(s) separation from AC during landing (landing roll) defining event
The aircraft
- Airframe total time: 7,277.9 hours
- Last inspection: annual inspection, January 21, 2026; 67.9 hours since
- Maximum gross weight: 9,000 lb
- Seats: 1
- Landing gear: fixed
- Operator: Vector Disease Control International
The flight
- Flight plan: none
- Runway 03/2, 8,107 ft by 150 ft
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 88°F (31°C), dew point 36°F (2°C)
- Altimeter: 30.10 inHg
- Observation at 5:53 pm from KOGD, 2 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 1 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number WPR26LA249.