The U.S. aircraft register, updated daily
Accidents · NTSB DEN85LA158 · Preliminary: the investigation is not finished

Mooney M20K accident near Lafayette, Colorado, June 8, 1985

On June 8, 1985 at about 4:10 pm local time, a Mooney M20K, registered N5764N, was substantially damaged in an accident near Lafayette, Colorado (Alexander Dawson airport). It was a business 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 October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 8, 1985 · about 4:10 pm local time
Place
Lafayette, Colorado · Alexander Dawson · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Mooney M20K · all M20Ks on the register
Registration
N5764N · no longer on the register · serial 250830
Damage
Substantial damage
Flight
Business flight · general aviation rules (Part 91)

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

ON JUNE 8, 1985, A MOONEY M20K, IMPACTED THE GROUND OFF THE RWY WHILE LANDING AT ALEXANDER DAWSON ARPT, LAFAYETTE, O. THE PLT SAID HE WAS ATTEMPTING TO MAKE A SHORT FIELD APCHTO THE PLT, THE APCH WAS HIGH AND FAST. THE ACFT LANDED, PORPOISED, AND DEPARTED THE END OF THE RWY. THE PLT WAS NOT INJURED.

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: private
  • Ratings: single-engine land
  • Flight time: 420 hours in all; 43 in this make and model; 10 in the last 90 days; 348 as pilot in command
  • Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 90 hours
  • Last inspection: 100-hour inspection, July 19, 1984; 90 hours since
  • Maximum gross weight: 2,740 lb
  • Seats: 4
  • Landing gear: retractable
  • Engine: Continental TSIO-360 LB (piston); 0 hours total

The flight

  • Departed from: BJC Broomfield CO at 3:55 pm
  • Flight plan: none
  • Runway 0, 2,000 ft by 50 ft

Weather at the time

  • Light: daylight
  • Visibility: 50 statute miles
  • Sky: clear
  • Temperature: 75°F (24°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.