The U.S. aircraft register, updated daily
Accidents · NTSB DEN85LA223 · Preliminary: the investigation is not finished

Cessna 120 accident near Erie, Colorado, August 17, 1985

On August 17, 1985 at about 9:50 pm local time, a Cessna 120, registered N4113N, was substantially damaged in an accident near Erie, Colorado (Tri County 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 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
August 17, 1985 · about 9:50 pm local time
Place
Erie, Colorado · Tri County · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 120 · all 120s on the register
Registration
N4113N · no longer on the register · serial 13571
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT STATED AFTER THE ACCIDENT THAT SHE HAD LANDED AND THE ACFT ROLLED APRX 600 FT WHEN SHE ATTEMPTED TO TURN OFF ONTO THE TAXIWAY WHILE THE ACFT WAS TRAVELING AT A MODERATE SPEED. A WITNESS STATED THAT HE SAW THE TREES 'LOCK UP' AS THE ACFT APPROACHED THE TAXIWAY AND THE ACFT NOSED OVER.

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: 400 hours in all
  • Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
  • Seat: left

The aircraft

  • Last inspection: annual inspection, April 27, 1985
  • Maximum gross weight: 1,450 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental C-85-12 (piston); 0 hours total

The flight

  • Departed from: BJC Broomfield CO at 5:00 pm
  • Destination: 48V Erie CO
  • Flight plan: none
  • Runway 33, 5,400 ft by 65 ft

Weather at the time

  • Light: daylight
  • Sky: not recorded; not recorded
  • 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.