SEA98LA079 · Air Tractor AT-301
Air Tractor AT-301 · Accident: partial loss of engine power (non-mechanical) during landing
From Rigby Airport (U56) to an unrecorded destination
Event
- NTSB case
- SEA98LA079
- 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
- 0
- 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-301
- Aircraft type
- Air Tractor AT-301
- 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
- N4326S
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Rigby Airport (U56), Rigby, IDTo not recorded
- 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 91: General Aviation
- 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
- Landing · aborted
- First occurrenceThe 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
- Partial loss of engine power (non-mechanical)
- 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
- Pilot in command › Aircraft control, not maintained
- Pilot in command › In-flight planning/decision, inadequate
- Pilot in command › Mixture, not corrected
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
As the pilot approached the agricultural application airstrip, he decided that he would land downwind so that he would end his landing roll near the equipment that would be used to load the aircraft. After the aircraft touched down, the pilot became uncomfortable with the downwind landing, and elected to make a go-around. He applied power two separate times during the attempted go-around, but both times the engine coughed and sputtered and would not accelerate. The pilot therefore decided to abort the go-around, and attempted to stop the aircraft in the remaining runway. According to the pilot, as the aircraft was slowing, the tailwind picked up the aft end of the aircraft and caused it to nose over. In a post- accident telephone interview, the pilot said that he had failed to readjust the engine fuel mixture from its more-lean cruise setting prior to landing. He further stated that the engine had been working fine, and that he felt sure that if he had adjusted the mixture prior to landing that the engine would have accelerated when he added power for the go-around.
Probable cause
The pilot's inadequate inflight decision to land with a tailwind and his failure to maintain aircraft control. Also contributing was the pilot's improper setting of the fuel mixture which resulted in a partial loss of engine power.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA98LA079
- Event ID
- 20001211X10196
- Case number
- SEA98LA079
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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: 83416e206c56510cb25ed8f462555c8a2ef38573a9dd2920a4bfc8dbd7ac3aab; retrieved 2026-09-22T17:46:21.520Z.