# Accident 20250930016839A: Sukhoi SU-26MX, Longmont, CO, September 30, 2025

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: September 30, 2025, 13:48 local time
- Place: Longmont, CO
- Airport: Vance Brand
- Damage: Substantial damage
- Phase of flight: Takeoff: Rotation
- Operating rules: General operating rules (Part 91)
- Location: 40.1638° N, 105.1622° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=40.1638&lon=-105.1622&mi=10
- Aircraft: N25SU, registered now (https://openairdocs.org/aircraft/N25SU) (OpenAirDocs)
- Registry model: Sukhoi SU-26MX (registry code 9850102, https://openairdocs.org/model/sukhoi-su-26mx) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: SUKHOI SU-26MX
- Reported engine: AMA/EXPR UNKNOWN ENG
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Airline transport, flight instructor
- Pilot flight hours: 22,350 total, 30 in this make and model, 25 in the last 90 days
- NTSB investigation: [NTSB CEN25LA405](https://openairdocs.org/ntsb/CEN25LA405) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20250930016839A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

TAKEOFF ON RUNWAY 11. LOSS OF CONTROL OCCURRED EARLY IN THE TAKEOFF ROLL , THE AIRCRAFT VEERED LEFT AND DEPARTED THE RUNWAY. IT BECAME AIRBORNE FOR 4 SECONDS IN A VERY NOSE HIGH ATTITUDE AND STALLED FROM APPROXIMATELY 50 FEET HIGH.  ON GROUND CONTACT THE LANDING GEAR COLLAPSED, PROP STRUCK, RIGHT WING AILERON RIPPED OFF, MOTOR MOUNT AND FIREWALL DAMAGED.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN25LA405](https://openairdocs.org/ntsb/CEN25LA405), Sep 30, 2025: Sukhoi SU-26MX (N25SU), Longmont, CO, substantial damage. Probable cause: The pilot's failure to maintain directional control during takeoff.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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