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N441L accident description

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Crash location 37.633333°N, 85.238333°W
Reported location is a long distance from the NTSB's reported nearest city. This often means that the location has a typo, or is incorrect.
Nearest city Springfield, KY
37.685341°N, 85.222182°W
3.7 miles away

Tail number N441L
Accident date 18 Jun 2008
Aircraft type Yates Lancair IV-P
Additional details: None

NTSB description


On June 18, 2008, at 1310 eastern daylight time, an amateur-built Lancair IV-P, N441L, impacted terrain adjacent to runway 11 at Lebanon-Springfield Airport (6I2), Springfield, Kentucky, during an emergency landing. The airplane was substantially damaged and the certificated commercial pilot was killed. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed. The flight was operated under the provisions of Title 14 Code of Federal Regulations Part 91.

Personnel at the Indiana Air Route Traffic Control Center (ARTCC) reported that the pilot departed from Blue Grass Airport (LEX), Lexington, Kentucky, at 1300. Soon after departing, the pilot contacted a controller to advise that he was losing engine oil pressure. At 1305, he requested radar vectors to the nearest airport and was advised that 6I2 was the closest airport. He was also advised that the airport was 8 miles at his 12 o'clock position. At 1306, he notified ARTCC that his windscreen was covered with oil. The controller then advised him that he was 4 miles from 6I2. The pilot responded that he did not have visual contact with the airport, and at 1308, ARTCC lost radar and communications with the airplane.

A witness stated that he saw an airplane flying overhead and heard it "backfire." The witness further stated that shortly thereafter, he saw smoke coming from underneath the airplane. He said that the engine appeared to be running at full power, while continuing to backfire and emit smoke until it disappeared from sight.


The pilot, age 54, held a commercial pilot certificate, with ratings for airplane single-engine land, airplane multiengine land, helicopter, and instrument airplane, which was issued on November 12, 1998. The pilot's last medical examination was on November 8, 2007, for a second-class medical certificate with no limitations or waivers. Review of the pilot's logbook revealed that he had accumulated 6,209 total flight hours, of which 196.5 hours were in the Lancair IV-P. He had logged 30 flight hours, which were flown within the last 90 days prior to the accident.


The four-seat, low-wing, retractable-gear airplane, serial number LIV-177, was manufactured in 1997. It was powered by a Teledyne Continental Motor (TCM)TSIO-550-B, 350-horsepower engine and was equipped with a three-bladed Hartzell constant-speed propeller, model F7693 DF. Review of the maintenance logbook records showed that a conditional inspection was completed on February 29, 2008, at a Hobbs reading of 313 hours, and an airframe total time of 313 hours. The airplane's logbooks revealed that on May 6, 2008, the engine and airframe total time was 351.1 hours. The pilot's personal logbook indicated that he flew the airplane approximately 18.5 hours since the last recorded inspection.


The reported weather at Stuart Powell Field, located about 15 miles east of the accident site, at 1259, was: wind from 290 degrees at 10 knots, gusting to 14 knots; visibility 10 miles; sky clear; temperature 23 degrees Celsius; dew point 9 degrees Celsius; altimeter 29.98 inches of mercury.


Examination of the accident site revealed that the wreckage was located at the approach end of runway 11. The crash debris line was approximately 200 feet in length on a 150-degree magnetic heading. A postcrash fire consumed the composite airframe. All flight control surfaces were located at the wreckage site, and flight control continuity was confirmed. Examination of the airframe and flight control system components revealed no evidence of preimpact mechanical malfunction. The engine and its accessories were separated from the firewall and airframe. Examination of the propeller and system components revealed no evidence of preimpact mechanical malfunction.

Visual examination of the engine revealed that the No. 1, 2 and 5 connecting rods were broken, and that the No. 2 connecting rod penetrated through the top of the aft section of the engine case. Examination of the accessory case revealed that a Supplemental Type Certificate (STC) SE5743NM Aviation Development Corporation (ADC) oil filter adapter was attached to the TCM accessory oil filter adapter fitting. A visual inspection of the ADC oil filter adapter revealed that the O-ring seal between the mating surfaces was extruding 3/4 inch. Further examination revealed that the O-ring was leaking oil for an undetermined amount of time, was dry-rotted, and brittle. Review of the ADC STC revealed that the current installed O-ring was incorrect. A review of the engine, and airframe logbooks did not reveal when the installation of the improper O-ring was performed.


An autopsy was performed on the pilot on June 18, 2008, by the Office of the Chief Medical Examiner, Commonwealth of Kentucky, Louisville, Kentucky, as authorized by the Coroner of Washington, Kentucky. The cause of death was reported as "Generalized Blunt-force Trauma."

Forensic toxicology was performed on specimens from the pilot by the FAA Bioaeronautical Sciences Research Laboratory, Oklahoma City, Oklahoma. The toxicology report revealed that no ethanol was detected in the liver or muscle. Quinine was detected in the urine.

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