Cessna 210 accident near Bulverde, Texas, December 21, 1999
On December 21, 1999 at about 9:45 pm local time, a Cessna 210, registered N6561X, was substantially damaged in an accident near Bulverde, Texas (Monahan Airfield). It was a flight of an unrecorded kind under general aviation rules (Part 91). 2 people were seriously injured. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The total loss of engine power for an undetermined reason.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- December 21, 1999 · about 9:45 pm local time
- Place
- Bulverde, Texas · Monahan Airfield · map
- Type
- Accident
- Injuries
- 2 people were seriously injured.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 210 · all 210s on the register
- Registration
- N6561X · no longer on the register · serial 57561
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
During the final approach, the airplane struck trees and terrain following a total loss of engine power. The local maintenance test flight was performed following the annual inspection with an overhaul of the engine cylinders. During a post-accident engine ground run at maximum power, no anomalies were found that would have precluded in-flight operation of the engine. Continuity was confirmed at all ignition switch positions. The fuel selector valve was selected on the right tank. When air pressure was applied to the right fuel line at the right wing root, a stream of blue colored fuel was observed as it was ejected from the engine pump inlet line. Both auxiliary tank transfer pumps activated when electrical power was applied. No open discrepancies were found in the maintenance records.
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; rotorcraft: helicopter
- Flight time: 5,517 hours in all; 150 in this make and model; 75 in the last 90 days; 20 in the last 30 days; 5,490 as pilot in command
- Medical certificate: Class 3 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 3,967 hours
- Last inspection: 100-hour inspection, October 20, 1999; 1 hours since
- Maximum gross weight: 2,900 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental IO-470-E (piston); 0 hours total
- Operator: Lonesome Dove Aviation, INC.
The flight
- Flight plan: none
- Runway 35, 2,300 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 360° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 61°F (16°C), dew point 0°F (-18°C)
- Altimeter: 29.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 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.