Remos Acft GMBH Flugzeugbau REMOS GX accident near Sacramento, California, May 9, 2021
On May 9, 2021 at about 9:20 pm local time, a 2008 Remos Acft GMBH Flugzeugbau REMOS GX, an amateur-built aircraft,, registered N104GX, was substantially damaged in an accident during landing near Sacramento, California (Sacramento Mather 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 pilot’s failure to maintain directional control during landing in gusty wind conditions which resulted in a runway excursion and collision with terrain.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 9, 2021 · about 9:20 pm local time
- Place
- Sacramento, California · Sacramento Mather · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Remos Acft GMBH Flugzeugbau REMOS GX, built 2008, amateur-built · all REMOS GXs on the register
- Registration
- N104GX · registry record · serial 288
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The student pilot reported that, he configured the airplane for landing on runway 22R and touched down on the runway centerline. Upon landing, the airplane encountered a wind gust and became airborne. The airplane drifted off the runway area and the wings oscillated with the tips making contact with the surface. As a result of the impact, the airplane sustained substantial damage to the upper fuselage skin located between the wing roots. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. An aviation routine weather report (METAR) for the airport about 25 minutes after the accident reported winds from 310o at 10 knots with gusts to 17 knots.
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 defining event
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
- Environmental issues › Conditions/weather/phenomena › Wind › Gusts › Effect on operation
Pilot
- Certificate: student
- Flight time: 45 hours in all; 44 in this make and model
- Medical certificate: Class 3 (without waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 800 hours
- Last inspection: 100-hour inspection; 100 hours since
- Maximum gross weight: 1,000 lb
- Seats: 2
- Landing gear: fixed
- Engine: Rotax 912 (piston); 800 hours total
The flight
- Departed from: RHV San Jose CA at 8:30 pm
- Flight plan: none
- Runway 04L/, 6,081 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 310° at 10 knots, gusting 17
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 84°F (29°C), dew point 34°F (1°C)
- Altimeter: 29.84 inHg
- Observation at 2:45 pm from KMHR, 1 miles away
Weather report (METAR): KMHR 092145Z 31010G17KT 10SM SKC 29/01 A2984 RMK AIRCRAFT INCIDENT
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 August 20, 2021. 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, 9 pages | View Download |
| 2 | Photographs (Source Unknown) | 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.