WPR26FA101

NTSB accident investigation · Sonex Onex · Caldwell, ID · February 6, 2026

Accident · FatalClass 3 · FieldPreliminary report
Date
February 6, 2026, 10:50 local (17:50 UTC)
Place
Caldwell, ID
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N362DZSonex Onex
Defining event
Initial climb: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
FAA FSDO
FAA report
20260206001249A
Case key
202403

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

On this page

Preliminary report

What NTSB knew early in the investigation. It may change in the final report.

On February 6, 2026, about 0945 mountain standard time, a Sonex Onex airplane, N362DZ, was destroyed when it was involved in an accident near Caldwell, Idaho. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. A witness reported that he observed the accident airplane depart runway 12 at Caldwell Executive Airport (EUL) Caldwell, Idaho. The airplane transitioned into an initial climb and reached an altitude of about 200–300 ft above ground level. The airplane then entered a shallow right turn followed by a left turn that suddenly steepened to a bank angle of about 90°. During this maneuver, the witness reported that the airplane rapidly rolled to the right and then descended out of his field of view. The airplane impacted a field about 850 ft southeast of the runway departure end at an elevation of about 2,435 ft mean sea level. All major structures were located at the accident site. Flight control continuity was traced from the cockpit to the elevator, aileron, and rudder flight control surfaces. The main wreckage, consisting of the fuselage, wings, engine, and empennage, was oriented to the northeast. Impact signatures were consistent with a near wings-level attitude at a shallow descent angle. The impact ground scar was confined to the immediate wreckage area. A handheld GPS unit was retained for data recovery. The wreckage was recovered and transported to a secure facility for further examination. Figure 1: Accident Site

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.

Aircraft

Registration
N362DZ
Reported as
Sonex Onex
Category
Airplane
Serial number
0039
Built
2020
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Airport
EUL · Caldwell Exec, runway 12, 5,500 × 100 ft, asphalt
Equipment
Unknown

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
7 statute miles
Lowest ceiling
None
Temperature
41 °F, dew point 34 °F
Altimeter
30.20 inHg
Observed at
EUL, 0.5 nm away
METAR
061745Z AUTO 00000KT 7SM CLR 05/01 A3020 RMK T00500010 MADISHF,M

FAA reports on this event · 1

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