Cessna 310-L incident near Hugo, Colorado, April 12, 1992
On April 12, 1992 at about 5:00 pm local time, a Cessna 310-L, registered N331BX, was involved in an incident near Hugo, Colorado. 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
FAILURE OF THE LEFT VOLTAGE REGULATOR. FACTORS WERE: FAILURE OF THE PILOT/MECHANIC TO PROPERLY MAINTAIN THE AIRCRAFT, AND FAILURE OF THE RIGHT ALTERNATOR CIRCUIT BREAKER.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- April 12, 1992 · about 5:00 pm local time
- Place
- Hugo, Colorado
- Type
- Incident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 310-L · all 310-Ls on the register
- Registration
- N331BX · registry record · serial 0168
- Damage
- Not recorded
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
WHILE IN CRUISE FLIGHT, ON AN IFR FLIGHT PLAN, WITH THE RIGHT ALTERNATOR INOPERATIVE, THE LEFT VOLTAGE REGULATOR FAILED CAUSING AN OVER VOLTAGE AND SUBSEQUENT ELECTRICAL FIRE. THE FIRE WAS EXTINGUISHED AND THE FLIGHT CONTINUED WITHOUT COMMUNICATIONS OR NAVIGATION EQUIPMENT TO THE PLANNED DESTINATION WHERE REPAIRS WERE CONDUCTED.
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: 1,108 hours in all; 60 in this make and model; 71 in the last 90 days; 20 in the last 30 days; 1,054 as pilot in command
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Last inspection: inspection type not recorded, January 2, 2000
- Maximum gross weight: 3,100 lb
- Seats: 6
- Landing gear: retractable
- Engine: Continental IO-470 (piston); 0 hours total
The flight
- Departed from: HQZ Mesquite TX at 2:00 pm
- Destination: APA Englewood CO
- Flight plan: IFR
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 20 statute miles
- Sky: clear
- Temperature: 70°F (21°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
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.