WPR26LA235

NTSB accident investigation · Diamond Aircraft Ind DA20-C1 · Nephi, UT · June 25, 2026

Accident · No injuriesClass 3 · LimitedPreliminary report
Date
June 25, 2026, 09:05 local (15:05 UTC)
Place
Nephi, UT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N643DCDiamond Aircraft Ind DA20-C1
Defining event
Enroute: Loss of engine power (total)
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
FAA
Case key
203265

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 June 25, 2026, about 0905 mountain daylight time, a Diamond DA20-C1, N643DC, was substantially damaged when it was involved in an accident near Nephi, Utah. The flight instructor and the student pilot were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 141 instructional flight. The flight departed Spanish Fork Airport (SPK), Spanish Fork, Utah, about 0741. According to the flight instructor, during the training flight they elected to perform a simulated engine-out approach to a field. The flight instructor reduced the engine power to simulate the engine failure, and the student maneuvered the airplane toward the selected landing area. As the airplane approached the field, the flight instructor advanced the throttle to full power; however, the engine did not respond. The flight instructor subsequently assumed control of the airplane and performed a forced landing. During the landing rollout, the airplane struck a ditch, which resulted in substantial damage to the right wing and fuselage. The airplane was retained for further examination.

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
N643DC
Reported as
Diamond Aircraft Ind DA20-C1
Category
Airplane
Serial number
C0143
Built
2001
Airframe hours
3,984.1
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
FLT Academy, doing business as FLT Academy
Registered owner
Skywest Leasing Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 27, 2026
Departed
DTA · Delta, UT
Destination
SPK · Spanish Fork, UT
Airport
Fiel · None
Equipment
Data recorder, ADS-B, Stall warning system, Onboard weather, Electronic primary flight display, Electronic multifunction display

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

Wind
150° at 11 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 54 °F
Altimeter
30.03 inHg
Observed at
KSPK
METAR
METAR KSPK 251535Z AUTO 15011KT 10SM CLR 23/12 A3003 RMK AO2 LTG DSNT N=