Amateur-built RV-10 accident near Oshkosh, Wisconsin, July 20, 2023
On July 20, 2023 at about 11:45 pm local time, a 2022 amateur-built RV-10, registered N917CM, was substantially damaged in an accident during landing (flare/touchdown) near Oshkosh, Wisconsin (Wittman Regional Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The pilot’s improper landing flare which resulted in a hard landing.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 20, 2023 · about 11:45 pm local time
- Place
- Oshkosh, Wisconsin · Wittman Regional Airport · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built RV-10, built 2022
- Registration
- N917CM · registry record · serial 41171
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
According to the pilot, he was landing on runway 27 at or beyond the green dot. The pilot reduced engine power after he reached the green dot. The airplane impacted the runway hard and both main landing gear collapsed. The airplane sustained substantial damage to the fuselage. The pilot stated that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Hard landing during landing (flare/touchdown) defining event
- Landing gear collapse during landing (flare/touchdown)
The NTSB's findings
- Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Landing flare › Not attained/maintained
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
Pilot
- Certificate: private
- Ratings: single-engine land
- Flight time: 728 hours in all; 114 in this make and model; 30 in the last 90 days; 8 in the last 30 days; 630 as pilot in command
- Last flight review: March 20, 2023
- Medical certificate: Class 3 (with waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 109.4 hours
- Last inspection: condition inspection, March 7, 2023
- Maximum gross weight: 2,700 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming IO-540-C4B5 (piston); 0 hours total
The flight
- Departed from: KDKB Dekalb IL at 10:31 pm
- Destination: KOSH Oshkosh WI
- Flight plan: none
- Runway 27, 6,179 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 310° at 12 knots, gusting 20
- Sky: clear
- Temperature: 77°F (25°C), dew point 58°F (14°C)
- Altimeter: 29.89 inHg
- Observation at 6:00 pm from KOSH
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 1 | |||
| Passengers | 1 |
Other NTSB records under N917CM the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CEN23LA323.