Amateur-built 500 accident near Oshkosh, Wisconsin, July 21, 2025
On July 21, 2025 at about 11:56 pm local time, a amateur-built 500, registered CGPDZ, was substantially damaged in an accident during landing (landing roll) near Oshkosh, Wisconsin (Wittman Rgnl 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).
The NTSB's probable cause their words, unchanged
The failure of the left main landing gear lateral pushrod end fitting which resulted in a landing gear collapse during the landing roll.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 21, 2025 · about 11:56 pm local time
- Place
- Oshkosh, Wisconsin · Wittman Rgnl · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built 500
- Registration
- CGPDZ · no longer on the register · serial 0905022
- 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, the airplane touched down on the runway and as the airplane decelerated, the left main landing gear collapsed. The left wing and the left horizontal stabilizer struck the ground during the collapse, and the airplane came to rest on the north side of the runway. The airplane sustained substantial damage to the left wing, the left horizontal stabilizer, and the fuselage. Postaccident examination of the landing gear system revealed that the left main landing gear lateral pushrod end fitting failed which allowed the left main landing gear to collapse during the landing roll.
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
- Landing gear collapse during landing (landing roll) defining event
The NTSB's findings
- Aircraft › Aircraft systems › Landing gear system › Gear extension and retract sys › Failure
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land
- Flight time: 1,000 hours in all; 5 in this make and model
- Medical certificate: None
- Seat: left
- Injury: no injuries
The aircraft
- Maximum gross weight: 3,575 lb
- Seats: 4
- Landing gear: retractable
- Engine: Lycoming IO-540 (piston); 0 hours total
The flight
- Departed from: KFKA Preston MN
- Destination: KOSH Oshkosh WI
- Flight plan: VFR
- Runway 09/2, 6,179 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 110° at 7 knots
- Visibility: 10 statute miles
- Sky: a few clouds at 12,000 ft
- Temperature: 22°F (-6°C), dew point 13°F (-11°C)
- Altimeter: 30.05 inHg
- Observation at 6:53 pm from KOSH
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
3 documents, released by the NTSB on July 15, 2026. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Accident Report Pictures | PDF, 5 pages | View Download |
| 2 | Examination Summary Statement | PDF, 2 pages | View Download |
| 3 | Memorandum of Record - Pilot | PDF, 1 page | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.