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N4577T accident description

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Tail numberN4577T
Accident dateAugust 05, 2003
Aircraft typePiper PA-28-180
LocationClarkfield, MN
Near 44.86 N, -95.792777 W
Additional details: None

NTSB description

HISTORY OF FLIGHT

On August 5, 2003, about 1645 central daylight time, a Piper PA-28-180, piloted by a private pilot, was destroyed on impact with terrain near Clarkfield, Minnesota. The personal flight was operating under 14 CFR Part 91. Visual to instrument meteorological conditions (IMC) prevailed in the area. A visual flight rules (VFR) flight plan was on file. The pilot was fatally injured. The flight departed from Karl Stefan Memorial Airport, near Norfolk, Nebraska, about 1430 and was enroute to Montevideo-Chippewa County Airport (MVE), near Montevideo, Minnesota at the time of the accident.

A witness stated: That afternoon around 4:35 P.M. the airplane was heading north over my grass strip runway. The cloud cover was low 100' to 150'. Then the plane came around and flew right over my farm site. At that point the plane was in [and] out of the clouds, going in a northern direction. That's the last sound of that airplane I heard that day.

A pilot stated: Enroute from Bismark, ND to Granite Falls, MN, I was on top at 11,000. After [receiving] a cruise clearance into Granite Falls I was IMC until I descended to 1000 ft above the ground. Conditions at Granite Falls were variable 1000 to 1200 at landing. There were a few jagged clouds passing through the area that may have been lower by a hundred feet.

An agricultural spray pilot in the Benson, Minnesota, area delayed his takeoff because he thought the weather was too low. He stated: The weather just south of Monti Airport, I estimate just of few miles appeared to be IFR weather. It was much better at Montivedio and north.

The pilot did not arrive at MVE at the time his filed flight plan indicated. The Princeton Automated Flight Service Station issued an ALNOT (Alert Notice) for the missing airplane. The United States Air Force Rescue Coordination Center (AFRCC) reviewed radar data and advised the Yellow Medicine County Sheriff's Department of an area to search for the airplane. The Sheriff's Department found the wreckage on August 6, 2003, about 0010 near the area the AFRCC advised.

PERSONNEL INFORMATION

The pilot held a private pilot certificate with a single engine land rating issued on July 20, 1984. The pilot held a third class medical certificate with limitations, "Holder shall wear corrective lenses", dated June 17, 2002. According to Federal Aviation Administration (FAA) Aeromedical records, the pilot reported having 1,660 total flying hours at that physical examination. The pilot also reported having flown 13 hours in the six months prior to the examination. Examination of the pilot's logbooks revealed a total of 1,728.22 hours of flight time logged.

AIRCRAFT INFORMATION

The accident airplane, N4577T, was a Piper PA-28-180, Cherokee, serial number 28-7205187, single-engine, low-wing airplane. Its engine was a 180 horsepower Lycoming O-360-A4A, serial number L-16444-36A. Its propeller was a fixed pitch, metal, two-bladed, Sensenich 76EM855-0-60 propeller, with serial number 22950K. A registration certificate dated September 10, 1998, was found in the wreckage. A review of the aircraft logbooks revealed a 100-hour and annual inspection was completed on May 28, 2003. The airframe logbook entry on that date indicated that the airplane had accumulated a total time of 4,303 hours. The engine logbook entry for that date revealed that the engine had accumulated 1,399 hours since major overhaul.

METEOROLOGICAL INFORMATION

At 1616, the recorded MVE weather was: Wind 120 degrees at 6 knots; visibility 5 statute miles; present weather mist; sky condition overcast 1,000 feet; temperature 19 degrees C; dew point 17 degrees C; altimeter 29.96 inches of mercury.

At 1636, the recorded MVE weather was: Wind 120 degrees at 7 knots; visibility 2 and one half statute miles; present weather mist; sky condition overcast 1,200 feet; temperature 19 degrees C; dew point 17 degrees C; altimeter 29.97 inches of mercury.

At 1656, the recorded MVE weather was: Wind 120 degrees at 5 knots; visibility 7 statute miles; sky condition scattered 1,000 feet, overcast 1,400 feet; temperature 19 degrees C; dew point 17 degrees C; altimeter 29.97 inches of mercury.

WRECKAGE AND IMPACT INFORMATION

The aircraft was found in a bean field. Areas of beans along a linear path were found deformed. The location of the start of the path was latitude 44 degrees 51.645 minutes N and longitude 95 degrees 47.523 minutes W. The path had a downward slope and its heading was about 215 degrees magnetic. The end of the path was located at latitude 44 degrees 51.600 minutes N and 95 degrees 47.570 minutes W. The path was about 337 feet in length. The propeller was found embedded in terrain about 57 feet from the start of the path. The propeller exhibited "S" shaped bends, leading edge gouges, and chordwise abrasion. Left wing was found detached from the fuselage about 257 feet from the start of the path. The left main landing gear was found separated from its wing. The right wing, fuselage, and empennage were found about 275 feet from the start of the path. The engine and nose landing gear were found at the end of the path

An on-scene investigation was performed. Control continuity was traced from the controls to all flight control surfaces. Engine control continuity was traced from the engine controls to the engine. The fuel tanks were found ruptured. Blight was observed in the areas of vegetation under the tanks. Drops of liquid that smelled like fuel were found to exit the carburetor when it was tilted. The number 2 cylinder intake push rod was bent. The engine produced a thumb compression on all cylinders and valve train operation was observed when the crankshaft was rotated by hand. No anomalies were found.

MEDICAL AND PATHOLOGICAL INFORMATION

An autopsy was performed on the pilot by the Ramsey County Office of the Medical Examiner on August 7, 2003.

The FAA Civil Aeromedical Institute prepared a Final Forensic Toxicology Accident Report. The report stated:

18 (mg/dL, mg/hg) ETHANOL detected in Muscle NO ETHANOL detected in Liver

Notes: - The ethanol found in this case is from postmortem ethanol formation and not from the ingestion of ethanol.

ADDITIONAL INFORMATION

The parties to the investigation included the FAA, Textron Lycoming, and The New Piper Aircraft, Inc.

The aircraft wreckage was released to a representative of the insurance company.

(c) 2009-2011 Lee C. Baker. For informational purposes only.