An external panel was found to be missing from a Boeing United Airlines flight after it landed in southern Oregon on Friday. United Flight 433‚ which departed from San Francisco at 10:20 a.m.‚ landed in Medford‚ Ore.‚ just before noon. The external panel was determined to be missing from the underside of the Boeing 737-800 aircraft after it was parked at the gate at Rogue Valley International-Medford Airport‚ according to United Airlines. The aircraft‚ which was carrying 139 passengers...