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Accidents · NTSB LAX87DUG05 · Preliminary: the investigation is not finished

Amateur-built QUICKSILVER MX II accident near Corona, California, July 13, 1987

On July 13, 1987, a amateur-built QUICKSILVER MX II (ultralight), registered N4628G, was substantially damaged in an accident near Corona, California (Corona Municipal airport). It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured. 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 October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 13, 1987
Place
Corona, California · Corona Municipal
Type
Accident
Injuries
1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Amateur-built QUICKSILVER MX II QUICKSILVE
Registration
N4628G · no longer on the register · serial 3450481
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

WHILE ATTEMPTING TO LAND ON RUNWAY 25 AT THE CORONA AIRPORT, CORONA, CALIFORNIA, IN GUSTING WIND CONDITIONS, THE AIRCRAFT STALLED AND COLLIDED WITH THE TERRAIN. THE PILOT SAID THAT THE 'EXTREME GUSTY WIND CONDITIONS' COMBINED WITH A VERY LIGHT AND STABLE AIRCRAFT 'CONTRIBED' (SIC) TO HIS LOSS OF CONTROL OF THE AIRCRAFT. THE PILOT FURTHER STATED THAT 'WIND BLOWING OVER TREES CAUSES ROLLING TURBULENCE'.

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

  • Certificate: student
  • Flight time: 95 hours in all; 38 in this make and model; 38 in the last 90 days; 25 as pilot in command
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: unk

The aircraft

  • Airframe total time: 162 hours
  • Last inspection: inspection type not recorded
  • Seats: 2
  • Landing gear: fixed
  • Engine: Rotax 503 (piston); 0 hours total

The flight

  • Departed from: Lake Elsinore CA at 11:30 pm
  • Destination: L66 Corona CA
  • Flight plan: none
  • Runway 25, 3,200 ft by 60 ft

Weather at the time

  • Light: daylight
  • Wind: from 285° at 12 knots, gusting 30
  • Visibility: 5 statute miles
  • Sky: clear
  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Crew1

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.

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.