Reuters
NTSB: Boeing flagged MD‑11 pylon bearing flaw in 2011 service bulletin before UPS engine separation
The NTSB says fractures in an MD‑11 pylon‑mount spherical bearing — the part that failed on a UPS freighter whose engine separated during takeoff — match a flaw Boeing warned operators about in a 2011 service bulletin. Investigators say similar fractures occurred at least four other times before the crash.
