The F-35 joint program office has grounded its fleet of F-35B short-takeoff, vertical-landing (STOVL) variants of the Joint Strike Fighter as a precautionary measure after discovering a problem with the propulsion "fueldraulic" line in one of the aircraft at Eglin Air Force Base in Florida. On Jan. 16, an aircraft experienced a problem -- before takeoff -- with the propulsion system "fueldraulic" line, which enables actuator movement for the STOVL vectoring exhaust system, according to a statement provided by JSF...
