New Gear Problem w/ Q400

A new landing gear problem emerged with the Bombardier Q400 after a Tyrolean aircraft an made an emergency landing on February 25 at approximately 10:20 am, Vienna time. “We believe the Tyrolean Q400 declared an emergency landing in Vienna due to conflicting indicators concerning the deployment of the landing gear,” Bombardier Spokesperson John Arnone told Regional Aviation News. “The aircraft landed with all landing gear down and safely locked, confirming that the three green signals in the alternate landing gear indication system were accurate.” The problem seems to be unique to that aircraft.
He noted that evidence suggests that faulty landing gear sensors were the cause of the conflicting indicators and said the problem did not constitute a safety hazard for the 67 passengers and crew on board. After over two hours in a holding pattern, and positive displays, the aircraft touched down at Vienna. The incident follows landing gear problems at SAS and airworthiness directives after three SAS aircraft crashed on landing owing to landing gear problems. Investigations found those problems were unique to SAS, the aircraft’s launch customer, after fleet-wide inspections. SAS has since announced it is spinning the aircraft out of its fleet, leaving 27 on the market. “There is no relationship whatsoever to the main landing gear incidents in September and November,” concluded Arnone. Related Story