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Accidents · NTSB WPR11LA369 · Final report

Cessna 140 accident near Wilkeson, Washington, August 4, 2011

On August 4, 2011 at about 3:30 pm local time, a Cessna 140, registered N2199N, was substantially damaged in an accident during takeoff near Wilkeson, Washington (Burnett Landing Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

A partial loss of engine power during takeoff due to water contamination in the fuel system.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
August 4, 2011 · about 3:30 pm local time · cases in 2011
Place
Wilkeson, Washington · Burnett Landing Airport · cases near this airport · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 140 · all 140s on the register
Registration
N2199N · registry record · serial 12435
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 had washed the airplane the day prior to the accident. On the day of the accident he determined during the preflight inspection that the fuel and induction systems were not contaminated with water. The engine run-up was uneventful; however, when the airplane was about halfway down the runway during takeoff, the engine began to sputter. The pilot verified the positions of the fuel selector handle and carburetor heat control and pumped the throttle, which sustained engine power momentarily. The airplane could not sustain flight and the pilot subsequently force-landed it in nearby trees. During the postaccident engine inspection, no operational anomalies were noted. The pilot further reported that on previous occasions after washing the airplane the engine experienced similar instances of momentary power loss. It is likely that, although the pilot conducted an extensive preflight inspection, undetected water contamination in the fuel system resulted in a reduction of power during takeoff.

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

  1. Fuel contamination during takeoff defining event
  2. Loss of engine power (partial) during takeoff
  3. Off-field or emergency landing during emergency descent
  4. Collision with terrain or object (not controlled flight into terrain) during landing

The NTSB's findings

Pilot

  • Certificate: private
  • Ratings: single-engine land; instrument: airplane
  • Flight time: 917 hours in all; 189 in this make and model
  • Last flight review: June 15, 2011
  • Medical certificate: Class 3 (without waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 5,793 hours
  • Last inspection: annual inspection, April 1, 2011; 5 hours since
  • Maximum gross weight: 1,450 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental Motors, Inc. O-200A (piston); 0 hours total

The flight

  • Departed from: WN15 Wilkeson WA at 3:20 pm
  • Destination: WN15 Wilkeson WA
  • Flight plan: none
  • Runway 13, 2,500 ft by 110 ft

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 63°F (17°C), dew point 55°F (13°C)
  • Altimeter: 30.02 inHg
  • Observation at 3:35 pm from KPLU, 10 miles away

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

4 documents, released by the NTSB on October 21, 2011. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/WPR11LA369.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.