Sunday, October 25, 2015

Piper PA-28-235 Pathfinder, N3979X: Accident occurred October 24, 2015 at Courtney Plummer Airport (9WN1) Winneconne, Winnebago County, Wisconsin

http://registry.faa.gov/N3979X

NTSB Identification: CEN16LA021
14 CFR Part 91: General Aviation
Accident occurred Saturday, October 24, 2015 in Winneconne, WI
Probable Cause Approval Date: 08/01/2016
Aircraft: PIPER PA 28-235, registration: N3979X
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The private pilot was conducting a cross-country flight. He reported that he could tell something was wrong as he started the descent for landing. He added that the engine was running “rough” and that it “quit” as the airplane touched down. He then observed black smoke and fire exiting out of the cowling. 
An examination of the wreckage revealed that the airplane sustained discoloration, deformation, and extensive thermal damage to the right side of the fuselage forward of the empennage, the cockpit, and the engine cowling. The fuel line going to the carburetor was separated. A detailed examination of the fuel line revealed that it had separated due to bending overstress with evidence of exposure to high temperature. However, the on-scene and detailed examinations could not determine the source of the ignition.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
An engine compartment fire during landing, which resulted in extensive fire damage, for reasons that could not be determined during examinations of the remaining wreckage.

On October 24, 2015, about 1515 central daylight time, a Piper PA 28-235 airplane, N3979X, emitted smoke from under its cowling during touch down on runway 36 at the Courtney Plummer Airport (9WN1), near Winneconne, Wisconsin. The airplane landed and subsequently sustained substantial damage when it caught on fire. The pilot and passenger were uninjured. The airplane was registered to and operated by the pilot as a 14 Code of Federal Regulations Part 91 personal flight. Day visual meteorological conditions prevailed along the route of flight about the time of the accident and the flight did not operated on a flight plan. The flight originated from the Aurora Municipal Airport, near Aurora, Illinois, about 1330 and was destined for 9WN1.

According to pilot's accident report, he reported that he could tell something was wrong as he started the descent. The engine was running "rough." The engine "quit" as he touched down. Black smoke and fire exited out of the cowling. He and his passenger opened the door and exited the airplane.

The pilot, age 62, held a Federal Aviation Administration (FAA) private pilot certificate with airplane single-engine land and instrument airplane ratings. He also held a FAA third-class airman medical certificate, with a limitation for corrective lenses. The pilot reported on his accident report that he had accumulated 2,800 hours of total flight time in single engine airplanes, of which 10.3 hours were flown in the last 90 days. According to information he provided to the FAA, the pilot indicated he had accumulated 2,900 hours of total flight time, of which 2,000 hours were flown in the same make and model as the accident airplane.

N3979X, was a 1975 model Piper PA 28-235 single-engine, low wing, four-place, fixed tricycle landing gear airplane with serial number 28-7610002. The airplane was powered by a 235-horsepower Lycoming O-540, six-cylinder, normally aspirated, reciprocating engine. According to the airplane's type certificate data sheet, the airplane had a fuel capacity 84 gallons, of which 50 gallons were contained within 2 wing tanks and 34 gallons were contained within 2 tip tanks. The airplane's last annual inspection was completed on January 7, 2015. According to copies of airplane airworthiness records and logbook endorsements supplied by a repair station, on April 1, 2015, the airplane had some of its airframe skin repaired, the airplane was repainted, and its tip tanks were leak checked and reinstalled.

FAA inspectors examined the wreckage and documented the damage. According to the inspectors and review of images of the wreckage, the airplane sustained discoloration, deformation, and thermal damage that consumed a section of the right side of the fuselage forward of the empennage, the cockpit, and the engine cowling. There was an observed separation in the fuel line going to the carburetor. The fuel line and its fittings were sent to the National Transportation Safety Board (NTSB) Material Laboratory for examination.


An NTSB chemist conducted a detailed examination of the fuel line. The examination revealed the separation of the fuel line was consistent with bending overstress with evidence of exposure to high temperature. The chemist's examination did not identify a source of ignition in reference to the fuel line and the investigation did not identify a source of ignition in the remaining wreckage.


NTSB Identification: CEN16LA021
14 CFR Part 91: General Aviation
Accident occurred Saturday, October 24, 2015 in Winneconne, WI
Aircraft: PIPER PA 28-235, registration: N3979X
Injuries: 2 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On October 24, 2015, about 1515 central daylight time, a Piper PA 28-235 airplane, N3979X, emitted smoke from under its cowling during final approach to the Courtney Plummer Airport (9WN1), near Winneconne, Wisconsin. The airplane landed and subsequently sustained substantial damage when it caught on fire. The pilot and passenger were uninjured. The airplane was registered to and operated by the pilot as a 14 Code of Federal Regulations Part 91 personal flight. Day visual meteorological conditions prevailed along the route of flight about the time of the accident and the flight did not operated on a flight plan. The flight originated from the Aurora Municipal Airport, near Aurora, Illinois, at time unknown and was destined for 9WN1.

According to preliminary information given to the Federal Aviation Administration, the pilot reported the smoke started on final approach. He landed the airplane and a ground fire started. The pilot reported that the fire caused extensive damage to the nose of the airplane.

FAA Flight Standards District Office: FAA Milwaukee FSDO-13

A pilot and passenger escaped injury after their single-engine airplane caught fire on a town of Winneconne airstrip on Saturday.

According to a news release, the Winnebago County Sheriff’s Office responded to a call of a fire at 3:15 p.m. at 5691 Courtney Plummer Road, which is a private airstrip in the town of Winneconne.

A Piper PA-28-235 Pathfinder landed on the airstrip after experiencing engine trouble.

The pilot, a 62-year-old male from Aurora, Illinois, and his 50-year-old female passenger exited the plane without injury before the engine caught on fire because of a mechanical issue, according to the news release.

Courtney Plummer Road was closed for about one hour while members of the Town of Winneconne/Poygan Fire Department extinguished the fire.

Story and photos: http://www.thenorthwestern.com





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