CEN10CA343 · Air Tractor AT-402B
C & L Holzwarth Air Tractor AT-402B · Accident: runway excursion during takeoff
From Holzwarth Flying Service Airport (25IL) to Holzwarth Flying Service Airport (25IL)
Event
- NTSB case
- CEN10CA343
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Air Tractor AT-402B
- Aircraft type
- Air Tractor AT-402
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N5120E
- Operator
- C & L Holzwarth
- Onboard fatalities
- Unknown
- Route
- From Holzwarth Flying Service Airport (25IL), Virden, ILTo Holzwarth Flying Service Airport (25IL), Virden, IL
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 137: Agricultural
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Takeoff
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Runway excursion
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot of the aerial application flight was attempting a takeoff when the airplane hit a bump 2/3 of the way down the runway, became airborne, and then descended into a corn field. The airplane impacted the cornfield upright and sideways, resulting in a deformed fuselage and substantial damage. The pilot stated that he could have prevented the accident by not taking off at a heavy weight on a wet runway. The density altitude at the time of the accident was approximately 2,854 feet mean sea level.
Probable cause
The pilot's decision to take off from a wet grass runway at an airplane weight and density altitude that precluded a normal takeoff and climb.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN10CA343
- Event ID
- 20100625X11319
- Case number
- CEN10CA343
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 37175e89ad70c397ee25c148b727fe8dc3de1122f8dc140a6e5da84e763beab7; retrieved 2026-09-15T14:30:08.761Z.