- Date
- September 15, 2025, 19:30 local (Sep 16, 2025, 03:30 UTC)
- Place
- Tyonek, AK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N798AKDavid Hunter Danchini CUB
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 21, 2026
- Report
- Approved by Office Director
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Alaska Regional Office
- Parties
- FAA FSDO
- FAA report
- 20250916019019A
- Case key
- 201017
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot’s failure to maintain directional control of the airplane during the landing roll, in gusting crosswind conditions.
Findings · 3
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.
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
The pilot reported that, during the landing roll while performing an off-airport landing in a tailwheel-equipped airplane, the airplane encountered a wind gust from the left. The airplane ground looped to the right and subsequently nosed over, which resulted in substantial damage to the left wing lift strut, vertical stabilizer, and rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Aircraft
- Registration
- N798AK
- Reported as
- David Hunter Danchini CUB
- Category
- Airplane, amateur-built
- Serial number
- 007
- Built
- 2024
- Airframe hours
- 102.9
- Engine
- Lycoming O-320-B2B, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special); Standard, Utility
- Last inspection
- Condition · August 5, 2025
- Departed
- Tyonek, AK
- Destination
- Same as departure
- Flight plan
- VFR
- Airport
- NONE
- Equipment
- Electronic primary flight display, Electronic multifunction display, Angle of attack indicator, ADS-B, Onboard weather
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.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 60
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Without waivers/limitations
- Last flight review
- August 5, 2023
- Seat
- Front
- Restraint
- 4-point
- Flight hours
- 622.8 total · 616.2 in this make and model · 616.2 as pilot in command · 30 in the last 90 days · 15 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 10° at 10 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 10,000 ft overcast
- Temperature
- 55 °F, dew point 43 °F
- Altimeter
- 29.49 inHg
- Observed at
- PAEN, 42 nm away
- METAR
- PAEN 160253Z 01010KT 10SM OVC100 13/06 A2949 RMK AO2 SLP989 T01330056 56010
Docket · 2
The files NTSB released with the investigation on May 22, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.0 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.