The Air Force announces that its program to replace the B-52H Stratofortress’s 1960s-era engines has cleared a critical design review, according to a May 4 service statement. The critical design review is a key milestone in the acquisition process that assesses whether the proposed design is ready to move forward with engineering and production work. All reporting focuses on the same milestone outcome and timing. The Air Force also states that the first modifications tied to the engine replacement effort are planned to begin this year. The information provided in the sources is limited to the program’s design review clearance and the start of initial modification work, without additional details on contractors, schedules beyond “this year,” specific engine types, or the scope of changes to individual B-52H aircraft. Overall, the outlets report a consistent update: the program successfully passes the critical design review stage and is moving into the next phase where aircraft modifications will begin.