- Two significant upgrades to the B-52 bombers are facing issues and delays, per a new watchdog report.
- The re-engined bombers, for instance, won't be operational until 2033, three years later than expected.
- The upgrades are part of a plan to keep the B-52s in service until at least 2050.
Some significant upgrades to the US Air Force's 70-year-old strategic bombers are facing notable issues.