Investigators determined that a part with a history of 10 prior fractures caused an engine to detach from a UPS MD-11 cargo plane, leading to the aircraft's fatal crash last year. The repeated failures before the catastrophic incident raise questions about maintenance oversight and inspection procedures.

NATIONAL HARBOR, MD — L3Harris is pushing forward with production of its Iver4 900 autonomous undersea vehicle (AUV) under a previously unknown Defense Innovation Unit effort that is looking to deliver a torpedo tube launch and recovery (TTL&R) autonomous drone to the U.S. Navy’s attack submarine fleet. The AUV will be delivered across multiple classes ...