Grounding
EASA grounded the Falcon 7X fleet after a report from Dassault Aviation regarding “an uncontrolled pitch trim runaway during descent” in one of its jets in May 2011. "This condition, if occurring again, could lead to loss of control of the aeroplane," the EASA notice said. Initial results of investigation showed that there was a production defect in the Horizontal Stabilizer Electronic Control Unit which could have contributed to the cause of the event. Dassault Aviation developed modifications in June 2011 to allow a return to flight.
Read more about this topic: Dassault Falcon 7X