- Date
- June 24, 2023, 09:00 local (16:00 UTC)
- Place
- Cave Junction, OR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N729UKitfox 2
- Defining event
- Takeoff: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20230624007889A
- Case key
- 192469
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 proper airspeed and his exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.
Findings · 2
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 stated that he was departing at the time of the accident. As the airplane became airborne, it climbed to about 30 ft above ground level and the pilot was applying left rudder to counteract the torque from the engine. The airplane entered an aerodynamic stall and began an uncommanded left turn. The pilot did not have enough altitude to recover and the airplane continued to turn left. The right wing struck a tree and the airplane impacted the ground and came to rest upright. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal operation. A postaccident examination revealed that there was no evidence of a mechanical malfunction and all control linkages were intact and operational.
Factual narrative
On June 24, 2023, about 0900 Pacific daylight time, an experimental, amateur-built Kitfox 2, N729U, was substantially damaged when it was involved in an accident near Illinois Valley Airport, Cave Junction, Oregon. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated he had flown the airplane to the departure airport the day before to practice maneuvers. He placed the airplane in a hangar overnight and planned for the flight in the following morning. On the day of the accident, after performing a preflight inspection, the pilot departed runway 36. As the airplane became airborne, it climbed to about 30 ft above ground level, with the pilot applying left rudder to counteract the torque from the engine. The airplane entered an aerodynamic stall and began an uncommanded left turn. The pilot did not have enough altitude to recover and the airplane continued to turn left. The right wing struck a tree and the airplane impacted the ground and came to rest upright. The pilot reported no preimpact mechanical malfunctions or failures that would have precluded normal operation. A Federal Aviation Administration certified mechanic examined the airplane following the accident. There was no evidence of a mechanical malfunction and all control linkages were intact and operational.
Aircraft
- Registration
- N729U
- Reported as
- Kitfox 2
- Category
- Airplane, amateur-built
- Serial number
- 729
- Built
- 1992
- Airframe hours
- 306
- Engine
- HKS 700E, 60 hp, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Condition · June 17, 2023 · 3 hours before
- Destination
- Same as departure
- Airport
- 3S4 · Illinois Valley Airport, runway 36, 4,800 × 25 ft, asphalt
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
- 74
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Sport pilot
- Last flight review
- June 7, 2023
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 141 total · 24 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 280° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 55 °F, dew point 54 °F
- Altimeter
- 30.09 inHg
- Observed at
- KBOK, 25 nm away
- METAR
- AUTO 28005KT 10SM OVC007 13/12 A3009 RMK AO2 SLP189 T01280117
Docket · 3
The files NTSB released with the investigation on November 26, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.9 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.