UPS never required detailed inspection of part that failed before engine flew off plane that crashed UPS never required the detailed inspections needed to spot the problem that allowed an engine to fly off one of its planes before it crashed and killed 15 people last fall even after Boeing recommended it years earlier

The UPS plane that crashed after losing its engine had flown 21,043 cycles, so it should have been thoroughly inspected under the original schedule. There has been only one other crash, decades earlier, involving a similar plane model losing an engine, but that one was blamed on improper maintenance and not the same flaw.