SEA99LA029 · Beech 200
KMR Aviation Beech 200 · Accident: on ground/water collision with object during landing
From Joslin Field Magic Valley Regional Airport (TWF) to an unrecorded destination
Event
- NTSB case
- SEA99LA029
- 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
Beech 200
- Aircraft type
- Beechcraft 200
- 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
- N6684B
- Operator
- KMR Aviation
- Onboard fatalities
- Unknown
- Route
- From Joslin Field Magic Valley Regional Airport (TWF), Twin Falls, 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 · landing roll
- 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
- On ground/water collision with object
- 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
- Other person › Airport snow removal, not performed
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that earlier in the day he talked with a friend that he was going to pick up at the airport. The pilot instructed the friend to call someone and have the snow plowed off the runway. The friend contacted the city employee responsible for plowing the runway. The employee stated that he would have the runway plowed. The plow operator plowed down one half of the runway to centerline and then partially plowed the other half before stopping and not finishing the job. The pilot stated that, prior to departure, he checked for Notams at the destination airport. There were none, and the flight took off and arrived in the area just after dusk. The pilot entered the traffic pattern for landing and touchdown was normal. The pilot stated that reverse thrust was used to slow the aircraft. About 1,000 feet down the runway, and at 50 knots airspeed, the left main gear collided with a snow berm that was down the centerline of the runway. The aircraft veered off the runway and collapsed the nose gear. The plow operator reported that there was no airport manager, and he did not know that he could have closed the airport.
Probable cause
Airport snow removal was not properly performed. A snowbank was a factor.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA99LA029
- Event ID
- 20001211X11638
- Case number
- SEA99LA029
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 1998-12-28.
- API snapshot SHA-256: e36e97af665108752fdc735c2c8de1d7b356ffb663160e2299e3445317759cd6; retrieved 2026-09-22T16:06:19.820Z.