Csp Leasing LLC CAVALON accident near Ronkonkoma, New York, August 30, 2026
On August 30, 2026 at about 3:00 pm local time, a 2015 Csp Leasing LLC CAVALON (gyroplane), an amateur-built aircraft,, registered N203AG, was substantially damaged in an accident during taxi (to runway) near Ronkonkoma, New York (Long Island Mac Arthur Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 30, 2026 · about 3:00 pm local time · cases in 2026
- Place
- Ronkonkoma, New York · Long Island Mac Arthur Airport · cases near this airport · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Csp Leasing LLC CAVALON, built 2015, amateur-built · all CAVALONs on the register
- Registration
- N203AG · registry record · serial V00225
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Mast bumping during taxi (to runway) defining event
The aircraft
- Airframe total time: 750 hours
- Last inspection: annual inspection, April 10, 2026
- Maximum gross weight: 1,102 lb
- Seats: 2
- Landing gear: fixed
The flight
- Departed from: ISP Islip NY at 3:00 pm
- Flight plan: none
- Runway 06/2, 7,006 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 250° at 12 knots
- Visibility: 10 statute miles
- Sky: broken clouds at 25,000 ft
- Temperature: 77°F (25°C), dew point 57°F (14°C)
- Altimeter: 30.16 inHg
- Observation at 10:56 am from ISP
Weather report (METAR): KISP 301456Z 25012KT 10SM BKN250 25/14 A3016 RMK AO2 SLP214 T02500139 58011
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.
Connections how this case links to the rest of the register
- N203AG on the register today · the tail number may have moved to another aircraft since
- Csp Leasing Llc CAVALON 5 registered today · the model family and its accident history
- Long Island Mac Arthur Airport · nearest airport
- Accidents and incidents in New York 1,964 since 1982 · 249 in the last ten years
- New York 6,663 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/ERA26LA324.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.