Falcon 50 Hydraulic Lines Must Be Inspected

Four separate reports of interference and consequent chafing of hydraulic lines in the No. 1 and No. 3 engine pylons of Falcon 50s have led to an AD requiring detailed inspections of the entire length of the lines to ensure proper clearance. AD 2003-10-04 is applicable to aircraft with S/N 2 two through 329. Inspections and corrective action are required by June 11.