Amateur-built Avid Mark 4 accident near Boulder City, Nevada, October 4, 2025
On October 4, 2025 at about 4:20 pm local time, a 2005 amateur-built Avid Mark 4, registered N90331, was substantially damaged in an accident during landing (landing roll) near Boulder City, Nevada (Boulder City Municipal 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).
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The NTSB's probable cause their words, unchanged
The pilot’s failure to maintain directional control while landing.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 4, 2025 · about 4:20 pm local time
- Place
- Boulder City, Nevada · Boulder City Municipal · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Amateur-built Avid Mark 4 NO SERIES, built 2005
- Registration
- N90331 · registry record · serial 1287D
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot of the tailwheel equipped airplane reported that while landing, he encountered a gust of wind and the airplane weathervaned violently. He attempted to correct the movement with the use of brake, but the airplane veered off the runway about 150 feet into sand and nosed over, which resulted in substantial damage to the left wing strut. The pilot reported that there were no 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
- Loss of control on ground during landing (landing roll) defining event
- Nose over/nose down during landing
The NTSB's findings
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
Pilot
- Certificate: commercial pilot
- Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane
- Flight time: 870 hours in all; 2 in this make and model; 40 in the last 90 days; 19 in the last 30 days; 712 as pilot in command; 0 on instruments
- Last flight review: July 29, 2025
- Medical certificate: Class 1
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 2.5 hours
- Last inspection: condition inspection, September 27, 2025; 1 hours since
- Maximum gross weight: 1,325 lb
- Seats: 2
- Landing gear: fixed
- Engine: Stratus/Subaru EA 81 (piston); 2 hours total
The flight
- Flight plan: none
- Runway 27, 5,103 ft by 75 ft
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 63°F (17°C), dew point 37°F (3°C)
- Altimeter: 29.88 inHg
- Observation at 8:15 am from BVU
Weather report (METAR): METAR KBVU 041515Z AUTO 00000KT 10SM CLR 17/03 A2988 RMK AO2
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
2 documents, released by the NTSB on December 4, 2025. 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 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 10 pages | View Download |
| 2 | Photos | PDF, 3 pages · our copy | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
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 documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text 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 WPR26LA003.