NTSB Factual Report

HISTORY OF THE FLIGHT

On January 19, 1996, about 1235 eastern standard time, a Piper PA-28-161, N114AV, collided with the ground during an uncontrolled descent at Fort Pierce, Florida. The airplane was operated by the pilot under the provisions of Title 14 CFR Part 91, and visual flight rules. A flight plan was not filed for the personal flight. Visual meteorological conditions prevailed. The private pilot and one passenger were seriously injured while a second passenger was fatally injured; the airplane was substantially damaged. The flight was originating at the time of the accident.

The airplane departed runway 27 at St. Lucie County International Airport, Fort Pierce, Florida. Three witnesses stated that the time between the boarding of the airplane and the takeoff roll was very quick. According to air traffic controllers the airplane had a takeoff roll of approximately 5000 feet. The witnesses also stated that the airplane was at approximately 200 - 300 feet when it began a right hand turn, and then appeared to stall, resulting in a descending spin. According to witnesses, the airplane collided with the ground right wing first.

PERSONNEL INFORMATION

According to the operator, the individual listed as the first pilot rented the airplane. Additionally, he was listed as the pilot on the form used by the operator to record flight time. He was also the only occupant of the airplane who possessed a pilot certificate issued by the Federal Aviation Administration (FAA). The pilot was issued a FAA private pilot certificate on February 13, 1995, based on his Austrian pilot license, number 9793.

In his report of the accident, on NTSB Form 6120.1/2, the pilot listed his total flight hours as 320, with 40 hours in the same make and model airplane he was operating at the time of the accident. According to the report he had a total of ten hours within the 90 days prior to the accident, and five total hours within the 30 days prior to the accident. The flight hours within the last 30 and 90 days respectively, were not listed as having been flown in the accident make and model airplane.

The pilot's report indicated that his last medical examination was conducted on July 5, 1995. There was no record of a FAA medical certificate. The pilot did not provide any information regarding any flight checks within the previous 24 months. In his report, the pilot indicated that he had no recollection of the flight.

The right seat belt and shoulder harness where the fatally injured passenger sat showed no signs of impact strain, or use during flight prior to the accident.

AIRCRAFT INFORMATION

Information on the airplane is included in this report under the data field labeled "Aircraft Information".

WRECKAGE AND IMPACT INFORMATION

During wreckage examination, the intake system sponge filter was found in, and blocking the carburetor intake throat. The inner carburetor air filter retainer was found to be absent, thus allowing the sponge to enter the intake throat. The mechanic who last worked on the system and replaced the filter, stated he must have improperly installed the wire screen. Service Letter, number 891, dated March 4, 1981 suggests an air induction filter retainer improvement; re-installing a one-piece retainer screen which would replace two separate retainers, one for each side of the sponge filter. This one-piece filter screen prevents the improper re-installation of air filter assemblies. This Service Letter pertains to both PA-28-151 and PA-28-161 models.

MEDICAL AND PATHOLOGICAL INFORMATION

A toxicological test was performed on the pilot detecting Naproxen in the system, with no traces of ethanol or other drugs. Naprosyn (naproxen) is indicated for the treatment of rheumatoid arthritis, osteoarthritis, juvenile arthritis, ankylosing spondylitis, tendinitis and bursitis, and acute gout. It is also indicated in the relief of mild to moderate pain and for the treatment of primary dysmenorrhea. There are no side effects issued from the use of this drug which would alter the pilots ability to operate the airplane. Information on this drug was found in The Physicians' Desk Reference, published by Edward R. Barnhart, 1990.

ADDITIONAL INFORMATION

The aircraft wreckage and logbooks were released to: Florida Flyers USA 3131 Jet Center Terr. 7N Ft. Pierce, Florida 34946

NTSB Probable Cause

improper re-assembly of the engine induction air filter by maintenance personnel, during an annual inspection, which resulted in a loss of engine power during takeoff; failure of the pilot to abort the takeoff before lift-off; and failure of the pilot to obtain and/or maintain sufficient airspeed, which resulted in a stall.