Casualties unknown

Aircraft Damaged After Dual Engine Failure Following Annual Inspection (N14260)

Torrance, CA, US

On March 29, 1996, a Piper PA-23-250 (registration N14260) operated by Carl J. Congdon was involved in an aviation accident near Torrance, CA. Investigators recorded the probable cause as: inadequate maintenance and inspection of the airplane; rust and water contamination in the aircraft fuel system; a worn shaft and cracked coupling in the left engine's left magneto, a malfunctioning left magneto on the right engine, and contamination (oil and… This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

An aircraft, inactive since 1989 and recently purchased, experienced dual engine failure on its first post-inspection flight, resulting in a short-field landing and damage.

Synopsis

On March 29, 1996, a pilot and a flight instructor (CFI) conducted the first flight of an aircraft following its annual inspection. The aircraft had been stored outdoors since early 1989 before being purchased by the pilot. Shortly after takeoff, one engine began to run rough and lose power. The pilots turned back toward the airport, but before reaching the runway, the second engine ceased operating. On short final approach, the first engine, which had been running rough, also stopped. With insufficient altitude to reach the runway, the aircraft touched down short of the runway and sustained damage.

Inspection History

An annual inspection had been completed on March 28, 1996. Maintenance records indicated that new fuel lines were installed during the inspection, and both gascolators were cleaned and inspected. The recorded entry for the annual inspection noted, "All fuel and oil lines checked, all accessories inspected."

Postaccident Examination

Following the accident, an inspection of the aircraft revealed the following:

  • Both gascolators contained rust-colored deposits, and the left gascolator bowl had water present. Both gascolator screens appeared dark with water corrosion.
  • Dark colored contamination was found in the left and right fuel servo inlet screens.
  • The shaft of the left engine's left magneto exhibited a wobble, and its drive coupling was cracked.
  • The right engine's left magneto did not produce a spark when tested.
  • Contamination, including oil and corrosion, was found inside the right engine's right magneto housing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X05438. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.