Back in the Mediterranean on 4 September, she resumed normal 6th Fleet operations—multiship exercises and port visits. In mid-October she joined a contingency force off the northern coast of Egypt in the wake of the assassination of President Anwar Sadat. The destroyer relieved her on 23 October and, after a stop at Rota from 27 to 29 October, "Biddle" headed home. She arrived back in Norfolk on 8 November and, except for two brief periods at sea early in December, remained in port for the rest of the year.