# NTSB CEN26LA068: Kitfox Clasc IV-1200, N239DA, Hudson, CO, December 27, 2025 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: December 27, 2025, 09:00 local (16:00 UTC) - Place: Hudson, CO - Coordinates: 40.10106, -104.70127 - Nearby events: https://openairdocs.org/map.md?lat=40.1011&lon=-104.7013&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report March 13, 2026 - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: FAA FSDO - NTSB case key (mKey): 202216 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN26LA068 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/202216/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=202216 - Page: https://openairdocs.org/ntsb/CEN26LA068 ## Probable cause The pilot’s failure to maintain control of the airplane during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Aller Daniel L KITFOX CLASC IV-1200, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=056152G), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Aller Daniel L KITFOX CLASC IV-1200, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=056152G), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Runway/land/takeoff/taxi surface](https://openairdocs.org/ntsb-findings/03023000): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Aller Daniel L KITFOX CLASC IV-1200, 1 case](https://openairdocs.org/ntsb-findings/03023000/cases.md?model=056152G), [All aircraft, 253 cases](https://openairdocs.org/ntsb-findings/03023000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Aller Daniel L KITFOX CLASC IV-1200, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=056152G), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Aller Daniel L KITFOX CLASC IV-1200, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=056152G), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot was landing to the east on the turf runway for the third time; the previous two landings were uneventful. During the landing roll, the airplane rolled over the bumpy turf surface, the empennage came up, and the airplane’s nose moved down. The pilot attempted to correct the nose down condition with an elevator input. When the airplane traveled over the paved taxiway that intersected the runway, the pilot opined that it exacerbated the situation. The airplane subsequently nosed over and came to rest inverted. The fuselage, vertical stabilizer, and rudder sustained substantial damage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot stated that taxiway that crossed the runway was raised relative to the runway surface; however, he did not feel that the difference was the reason for the nose over. The airport facility directory noted that the turf surface was in fair condition, the runway was not maintained in winter, and that a taxiway intersected the turf runway at midfield. ## Aircraft - Registration: [N239DA](https://openairdocs.org/aircraft/N239DA), registered now, S/N C9610-0177, built 2004 (OpenAirDocs) - Reported make and model: Kitfox CLASC IV-1200 - Registry model: [Aller Daniel L KITFOX CLASC IV-1200](https://openairdocs.org/model/aller-daniel-l-kitfox-clasc-iv-1200) (registry code 056152G) (OpenAirDocs) - Registry engine: [Rotax SEE BOMBADIER](https://openairdocs.org/engine/rotax-see-bombadier) (registry code 55555, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: C9610-0177 - Year built: 2004 - Airframe hours: 919.4 - Engines: Rotax 912 ULS 100 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, December 1, 2024 - Departed: KBDU, Boulder, CO - Destination: K18V, Hudson, CO - Airport: 18V, Platte Valley Airpark, runway 09/27, 2,500 × 90 ft, grass/turf - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 39; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review January 16, 2025; seat: right; restraint: 4-point; flight hours: 548 total, 216 in this make and model, 486 as pilot in command, 45 in the last 90 days, 21 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 3 knots - Visibility: 10 statute miles - Lowest ceiling: 21,000 ft broken - Temperature: 46 °F, dew point 21 °F - Altimeter: 29.77 inHg - Observed at: KDEN, 15 nm away - METAR: METAR KDEN 271553Z 21003KT 10SM FEW080 SCT140 BKN210 08/M06 A2977 RMK AO2 SLP055 T00781061 ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20251227018679A](https://openairdocs.org/incident/20251227018679A), Dec 27, 2025: Aller Daniel L KITFOX CLASC IV-1200, Hudson, CO, Substantial damage. Aircraft landed on runway 09 at Platte Valley Airpark (18V) with a taxiway prependicular near the end of the runway. The winds were calm. Shortly after… ## Docket (4 files) The files NTSB released with the investigation on March 13, 2026, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=202216. 5.0 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 10 pages, 3.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19782181&FileExtension=pdf&FileName=NTSB%20Form%206120_1%20-%20N239DA%20-%2012-27-2025%20-%20Final_Redacted-Rel.pdf - Photos (item 2, PDF, 3 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19782269&FileExtension=pdf&FileName=Accident%20Report%20Pictures-Rel.pdf - Airport facility directory excerpt (item 3, PDF, 2 pages, 67 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19948031&FileExtension=pdf&FileName=Hudson,%20CO%20-%20AFD-Rel.pdf - Record of conversation - pilot (item 4, PDF, 1 page, 64 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=19948189&FileExtension=pdf&FileName=Pilot%20Statement-Rel.pdf 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. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.