But it’s not as bad as that makes it appear to be.
The (Air Force) Magazine provides a statement from senator stating that of the 61 heavy bombers, 15 are in depot maintenance and 39 aircraft are down for inspections or other issues.
They’ve been around since the 80s and get almost as much work as the even older BUFF.
More @ Only six U.S. Air Force B-1 heavy bombers ready for combat – Defence Blog