The Government Accountability Office has identified serious concerns surrounding the US Air Force’s ambitious B-52 Stratofortress modernization program, valued at approximately $21 billion. The assessment found that ten of thirteen ongoing modernization initiatives are encountering budget overruns, timeline extensions, and technical uncertainties. The most significant issue involves the Commercial Engine Replacement Program, which has expanded to $15.4 billion after a $3 billion increase and has slipped by 15 months compared to previous projections. Continued delays are placing additional pressure on maintenance depots already experiencing shortages of components for the legacy Pratt & Whitney TF33 engines. The watchdog warned that extended setbacks could reduce operational availability among the Air Force’s 76 active B-52 bombers, potentially creating temporary capability shortfalls. Despite these concerns, the Air Force plans to initiate engine production before developmental flight testing concludes, a strategy the GAO believes could lead to additional costs if modifications become necessary later. The agency recommended postponing production until technical risks are fully assessed. While officials accepted most of the GAO’s recommendations, they expressed only partial agreement regarding the proposed production delay.
