Johnson Coot accident near Deer Park, WA
On October 2, 2015, a Johnson Coot (airplane) was involved in an accident near Deer Park, WA. 1 person died. Damage to the aircraft: destroyed.
- Date
- October 2, 2015
- Place
- Deer Park, WA
- Aircraft
- Johnson Coot · Airplane
- Injuries
- 1 fatal, 0 serious, 0 minor
- Damage
- Destroyed
- Position
- 47.990°N, 117.421°W
- NTSB ID
- 20151002X53723
Official records · WPR16FA001
- Public docket: reports, statements and exhibits from the investigation
NTSB summary
HISTORY OF FLIGHTOn October 2, 2015, about 1112 Pacific daylight time, an experimental amateur-built Coot A experimental amateur-built airplane, N69BD, was destroyed when it impacted terrain about 1 mile north of Deer Park Airport (DEW), Deer Park, Washington. The private pilot was fatally injured. The amphibious airplane was registered to and operated by the pilot as a 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions were reported near the accident site about the time of the accident, and no flight plan was filed. The local flight originated from DEW about 1110. Another pilot reported that he had spoken to the accident pilot before the accident and that his crew had helped the pilot get the accident airplane out of the hangar. He noted that the accident pilot told him that he had been having fuel system problems and that there had been an airworthiness directive (AD) for the carburetor installed on the Franklin engine. The accident pilot said that he had purchased a fuel pump that had been installed on a Bell 47 helicopter with a Franklin engine and had a mechanic help him install it on the accident airplane. The accident pilot also stated that the challenge was that the accident airplane's fuel tanks were below the engine and that he had been having problems with carburetor priming, so he had installed an electric boost pump to prime the carburetor and hoped that the engine-driven fuel pump would maintain engine operation. The accident pilot added that, during engine ground runs with the electric boost pump on, the engine ran too "r
Probable cause
The pilot's failure to maintain sufficient airspeed and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and subsequent spin. Contributing to the accident was the pilot's diverted attention due to the rough running engine, which resulted from a rich fuel/air mixture, and the pilot's decision to conduct the flight in the airplane in which he had litt
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Browse: Washington
Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
