The U.S. aircraft register, updated daily
Accidents · NTSB SEA99LA135 · Final report

Quicksilver Aircraft MX II A-HP accident near Coram, Montana, July 20, 1999

On July 20, 1999 at about 7:00 pm local time, a Quicksilver Aircraft MX II A-HP, an amateur-built aircraft,, registered UNREG, was substantially damaged in an accident near Coram, Montana. It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries; 1 other was unhurt. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The non-rated pilot's failure to maintain clearance from trees while taking off from a gravel pit. Factors include a downdraft.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 20, 1999 · about 7:00 pm local time
Place
Coram, Montana · map
Type
Accident
Injuries
1 person had minor injuries; 1 other was unhurt.
Weather
visual conditions (good weather)
Aircraft
Quicksilver Aircraft MX II A-HP, amateur-built
Registration
UNREG · no longer on the register
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 assembled his aircraft and took off from a gravel pit in order to do some sightseeing in the local area. Upon returning to the gravel pit, an individual who weighed about 100 pounds asked if he would take them for a ride. After this passenger boarded the aircraft, the pilot again took off from the gravel pit. But, according to the pilot, just after lifting off, a sudden wind came up, resulting in a downdraft to be generated in the area where he would be climbing over some trees. When he reached the trees, the aircraft's gear contacted the tree tops and it began to slow. As it slowed, the right wing hit a tree trunk, causing the aircraft to rotate to the right and fall to the ground.

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

Pilot

  • Flight time: 217 in this make and model
  • Medical certificate: None
  • Seat: left

The aircraft

  • Last inspection: inspection type not recorded, June 1, 1999
  • Landing gear: fixed
  • Engine: Rotax 503 (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 75°F (24°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Other NTSB records under UNREG the same tail number, which may have belonged to a different aircraft at the time

2026-07-07CEN26LA246 · accident near Hooker, OK · substantial damage · minor injuries
2026-02-28CEN26LA131 · accident near Van Burensburg, IL · substantial damage · no injuries
2025-10-13ERA26LA017 · accident near Gaffney, SC · substantial damage · serious injuries
2025-09-27CEN25LA397 · accident near Harvard, IL · substantial damage · no injuries
2025-09-12CEN25LA385 · accident near Rossville, IN · substantial damage · serious injuries
2025-07-07CEN25LA242 · incident near Ingram, TX · minor damage · no injuries
2025-06-18DCA25WA305 · accident near N/A · serious injuries
2025-05-01OPS25LA034 · incident near Washington, DC
2025-04-11CEN25LA155 · accident near Brady, TX · substantial damage · serious injuries
2025-01-30DCA25MA108 · accident near Washington, DC · destroyed · fatal

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.