The US Air Force's aerial refueling tanker fleet has not met readiness benchmarks from 2019 through 2025, according to a recent Government Accountability Office (GAO) report. The findings highlight critical sustainment risks, including parts shortages, maintenance staffing gaps, and infrastructure limitations.
The KC-135 Stratotanker and newer KC-46A Pegasus fleets have struggled with availability and mission-capable rates, though specific figures remain classified due to sensitivity. Despite ongoing operational challenges, the Air Force has yet to develop a comprehensive mitigation plan.
'The Air Force has not comprehensively assessed these risks or developed a plan to mitigate them,' the GAO report stated.
Tankers serve as vital 'flying gas stations,' extending the range of fighter jets and bombers during extended missions. Recent operations, including strikes on Iranian nuclear facilities, have underscored their importance. However, the fleet faces aging infrastructure and technical issues. The KC-135, in service since the 1950s, is increasingly prone to breakdowns, while the KC-46A, produced by Boeing, has been plagued by delays and operational defects, including refueling boom malfunctions and faulty sensors.
The report notes that the Air Force tracks aircraft readiness but lacks detailed metrics to assess whether tankers can perform their primary refueling function. Experts warn that these deficiencies could compromise American airpower in critical missions.