Cessna TU-206A accident near Loveland, Colorado, October 23, 1983
On October 23, 1983 at about 9:00 pm local time, a Cessna TU-206A, registered N4831F, was substantially damaged in an accident near Loveland, Colorado (Loveland airport). It was a flight of an unrecorded kind under general aviation rules (Part 91). No one was hurt; 6 people were 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
- October 23, 1983 · about 9:00 pm local time
- Place
- Loveland, Colorado · Loveland · map
- Type
- Accident
- Injuries
- No one was hurt; 6 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna TU-206A · all TU-206As on the register
- Registration
- N4831F · registry record
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE ACFT LOST PART OF ONE BLADE OF THE PROPELLER DURING THE CLIMB TO CRUISE PHASE OF OPERATION. THE PASSENGERS WERE SKYDIVERS SO THEY USED THEIR PARACHUTES IN AN EXIT OF THE ACFT AS THE AIRFRAME STARTED TO VIBRATE. THE PLT MADE A SUCCESSFUL LANDING ON THE ARPT WITHOUT POWER. ALL THE JUMPERS LANDED SAFETY. VISUAL EXAMINATION OF THE PROPELLER SHOWED THAT THE BLADE HAD SEPARATED 10 TO 12 INCHES OUTBOARD FROM THE BLADE ROOT. THE FRACTURE EXHIBITED EVIDENCE TYPICAL OF HIGH CYCLE FATIGUE AND OVERLOAD STRESS.
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: commercial pilot
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 1,106 hours in all; 210 in this make and model; 33 in the last 90 days
- Medical certificate: Unknown (valid medical--no waivers/lim.)
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 3,600 lb
- Seats: 6
- Landing gear: fixed
- Engine: Continental TSIO-520-C (piston); 0 hours total
The flight
- Departed from: FNL Loveland CO
- Flight plan: VFR then IFR
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 50 statute miles
- Sky: clear
- Temperature: 70°F (21°C), dew point 0°F (-18°C)
- Observation at 3:00 pm
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 5 |
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.