Beech D35 accident near Guymon, Oklahoma, September 1, 2010
On September 1, 2010 at about 5:30 pm local time, a Beech D35, registered N3446B, was substantially damaged in an accident during approach near Guymon, Oklahoma (Guymon Municipal Airport). It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The loss of engine power for undetermined reasons.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- September 1, 2010 · about 5:30 pm local time
- Place
- Guymon, Oklahoma · Guymon Municipal Airport · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Beech D35 · all D35s on the register
- Registration
- N3446B · no longer on the register · serial D-3684
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The pilot reported that he departed on a cross-country flight with 49 gallons of fuel on-board the airplane. About 3 hours later, as he approached his destination airport, the airplane’s engine surged followed by a total loss of power. The pilot suspected that the engine had experienced vapor lock/fuel blockage and attempted to resolve the problem by selecting each of the airplane’s three fuel tanks and affirming that the mixture control was in the full rich position. The airplane continued to descend and the pilot elected to conduct a forced landing at his destination airport. The airplane did not have sufficient altitude and the pilot made a hard landing diagonally across the runway. During the landing, the airplane’s nose gear collapsed and the right wing was substantially damaged. A Federal Aviation Administration inspector examined the airplane on-site and reported that it appeared the underside of the fuselage had blue stains on it akin to the coloration of fuel; he noted that the fuel caps had duct tape on them. The inspector was unable to determine if the airplane’s fuel tanks contained fuel. The reason for the loss of engine power was not determined.
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
What happened, in order
- Unknown or undetermined during approach
- Loss of engine power (total) during approach defining event
- Off-field or emergency landing during approach
- Hard landing during landing
- Landing gear collapse during landing
- Nose over/nose down during landing
The NTSB's findings
- cause Not determined › Not determined › (general) › (general) › Unknown/Not determined
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land; instrument: airplane
- Flight time: 1,388 hours in all; 767 in this make and model; 1,347 as pilot in command
- Last flight review: November 4, 2009
- Medical certificate: Class 3 (without waivers/limitations)
The aircraft
- Airframe total time: 4,836 hours
- Last inspection: annual inspection, September 10, 2009
- Seats: 4
- Landing gear: retractable
- Engine: Cont Motor E185 SERIES (piston); 0 hours total
The flight
- Departed from: 52F Roanoke TX
- Destination: GUY Guymon OK
- Flight plan: VFR
- Runway 18, 5,900 ft by 100 ft
Weather at the time
- Light: daylight
- Wind: from 340° at 9 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 82°F (28°C), dew point 61°F (16°C)
- Altimeter: 29.94 inHg
- Observation at 5:53 pm from KGUY
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 1 |
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CEN10CA517.