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CEN20CA079 · Air Tractor AT-504

8 Feb 2020 · Fort Morgan, CO, United States

CO Fire Aviation Air Tractor AT-504 · Accident: loss of control on ground during landing

From Fort Morgan Municipal Airport (FMM) to Fort Morgan Municipal Airport (FMM)

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Event

NTSB case
CEN20CA079
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-504

Aircraft type
Air Tractor AT-504
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
N970FA
Onboard fatalities
Unknown
Route
From Fort Morgan Municipal Airport (FMM), Fort Morgan, COTo Fort Morgan Municipal Airport (FMM), Fort Morgan, CO
Aircraft age
About 5 years (built 2015)
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
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
Loss of control on ground
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 from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.

NTSB narrative

According to the pilot on the controls in the left seat, the right seat pilot was familiarizing him with the airplane. The airplane bounced during landing on the runway. During the landing roll, the airplane veered left, and he overcorrected to the right, followed by an overcorrection to the left. He applied heavy braking, and the airplane turned 120° to the right. The side load on the left main landing gear tire resulted in it bursting. The wheel rim then dug into the runway, the airplane bounced, the tailwheel assembly failed, and the tail spring steel strut then dug into the soft surface. The airplane sustained substantial damage to the aft fuselage and the empennage.

Probable cause

The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in the left main landing gear tire bursting and the tailwheel assembly failing.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record CEN20CA079
Event ID
20200210X23531
Case number
CEN20CA079
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, coordinates. 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: 149cbc9fa32f68ad7bd4c7190be82a13f30013a1dfb81938080abba18bc5d314; retrieved 2026-09-16T11:04:58.998Z.