Aviation Accident Summaries

Aviation Accident Summary ATL95LA123

WHITEVILLE, NC, USA

Aircraft #1

N74RK

KNOSP CORBIN JR. ACE-E

Analysis

WHILE EN ROUTE TO ROCKINGHAM, NORTH CAROLINA, THE AIRCRAFT EXPERIENCED A GRADUAL LOSS OF ENGINE POWER. THE CONDITION DETERIORATED TO THE POINT WHERE THE PILOT WAS FORCED TO EXECUTE AN EMERGENCY LANDING IN A FIELD. THE AIRCRAFT TOUCHED DOWN IN SOFT DIRT AND NOSED OVER. AN EXAMINATION OF THE FUEL SYSTEM FOUND RUST CONTAMINATION IN THE FUEL TANKS, FUEL LINES AND GASOLATOR. THE PILOT HAD PURCHASED THE AIRCRAFT JUST PRIOR TO THE FLIGHT. HE HAD FLOWN THE AIRCRAFT ONCE BEFORE HE PURCHASED IT, AND HAD EXPERIENCED NO PROBLEMS WITH THE AIRCRAFT. THE PREVIOUS OWNER STATED THAT THE AIRCRAFT HAD BEEN SITTING FOR A LONG PERIOD OF TIME WITH A MINIMAL AMOUNT OF FUEL IN THE TANKS. THE PILOT REFUELED THE AIRCRAFT AFTER PURCHASE, AND FOUND NO CONTAMINATION WHEN THE FUEL TANK SUMPS WERE DRAINED BEFORE THE ACCIDENT FLIGHT.

Factual Information

On July 1, 1995, at 1340 eastern daylight time, a Knosp Corbin Jr. Ace-E, N74RK, nosed over in a soft field during an emergency landing, after a loss of engine power, near Whiteville, North Carolina. The personal flight operated under the provisions of 14 CFR Part 91, with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane sustained substantial damage, and the pilot received minor injuries. The flight departed Southport, North Carolina, at 1300 hours. The pilot purchased the aircraft just prior to the flight. He had flown the aircraft before purchasing it, and had not experienced any problems with the aircraft. According to the pilot, the airplane was refueled, after he purchased it, with 10 gallons of 100 low lead fuel. He sumped the fuel during preflight, and found no fuel contamination. About 30 minutes into the flight, the pilot noticed a gradual loss of engine power. The condition deteriorated to the point where the pilot was forced to land. The pilot selected an open field for the emergency landing. The airplane touched down in the soft dirt and nosed over. An examination of the aircraft fuel system revealed rust particles in the fuel. The gasolator bowl was removed. Sludge and rust was found at the bottom of the bowl. After cleaning the fuel system and lines of rust, an engine run was performed. All systems operated normally. No mechanical malfunction was found. According to the previous owner of the aircraft, he allowed it to sit for a long period of time with a low amount of fuel in the tanks, prior to the current owner's purchase of the aircraft. The aircraft was within its annual inspection.

Probable Cause and Findings

CONTAMINATION OF THE FUEL SYSTEM WHICH RESULTED IN FUEL STARVATION AND A TOTAL LOSS OF ENGINE POWER. .

 

Source: NTSB Aviation Accident Database

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