Aerospace company Melrose Industries has paused its share buybacks as it waits for potential legal and regulatory action over a leaking chemical tank in California . The companys GKN Aerospace business said the tank at its Garden Grove facility was leaking methyl methacrylate, a flammable chemical used in the acrylic for windows for the F 35 fighter jet and passenger cabin windows on commercial aircraft, because it was overheating. The local area had to be evacuated in case the tank exploded...