WPR26LA095

NTSB accident investigation · American Champion 8KCAB · Alpine, WY · January 29, 2026

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
January 29, 2026, 14:30 local (21:30 UTC)
Place
Alpine, WY
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N59SEAmerican Champion 8KCAB
Defining event
Approach-VFR pattern base: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Day
Status
Completed · report April 30, 2026
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20260129010969A
Case key
202381

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s inadvertent descent while operating in flat light conditions which resulted in controlled flight into terrain.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 809 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause
Light condition: flat lightEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeAll aircraft: 42 casesProbable cause
Terrain: snowy/icy terrainEnvironmental issues › Physical environment · Contributed to outcomeAll aircraft: 77 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

At the conclusion of an uneventful flight, the pilot returned to the departure airport and entered the airport traffic pattern. The pilot stated that after he turned onto the base leg for the runway, he unknowingly lost depth perception and flew into the snow-covered terrain due to the “flat light” conditions. During the accident sequence, the airplane nosed over, and sustained substantial damage to the rudder, vertical stabilizer, and both wings. The pilot added that the terrain surrounding his base leg of the traffic pattern was a dry lakebed covered in snow, the sky was overcast, and there were no shadows. He further stated that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N59SE
Reported as
American Champion 8KCAB
Category
Airplane
Serial number
1004-2005
Built
2005
Airframe hours
599.2
Engine
Lycoming AEIO-360-H1B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Aerobatic
Last inspection
Annual · October 19, 2022
Departed
46U · Alpine, WY
Airport
46U · Alpine, runway 13, 5,827 × 70 ft, asphalt
Equipment
Stall warning system

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
76
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Sport pilot, Unknown
Last flight review
August 31, 2023
Seat
Front
Flight hours
3,130.8 total · 217.7 in this make and model · 3,130.8 as pilot in command · 13.8 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
7,000 ft broken
Temperature
34 °F, dew point 19 °F
Altimeter
30.39 inHg
Observed at
KAFO, 30 nm away
METAR
METAR KAFO 292135Z AUTO 00000KT 10SM SCT036 BKN070 01/M07 A3039 RMK AO2

Docket · 3

The files NTSB released with the investigation on April 30, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 41.7 MB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.