Casualties unknown

Landing Gear Collapses During Taxi at Unspecified Airport (N5829X)

Phoenix, AZ, US

On December 17, 2006, a Piper PA 23-235 (registration N5829X) operated by ON File was involved in an aviation accident near Phoenix, AZ. Investigators recorded the probable cause as: The landing gear collapsed for undetermined reasons while the aircraft was standing on the taxiway with the engines operating. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

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

During taxi, the right main landing gear of an airplane collapsed. Post-accident examination revealed all landing gear were not in the down-and-locked position, but no mechanical anomalies were found.

Event Description

As the pilot began to taxi the airplane toward the runway, the right main landing gear collapsed. The pilot had already completed the run-up and was preparing for departure. The collapse occurred as the aircraft initiated taxi.

Post-Accident Examination

Following the incident, an examination of the landing gear system showed that none of the landing gear were in the down-and-locked position. Aircraft recovery personnel subsequently cycled the landing gear, after which they were able to secure a down-and-locked position. No mechanical anomalies were noted in the landing gear system.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070123X00084. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.