NTSB probes UPS MD-11F Louisville crash cracks as investigator weighs Boeing 2011 service letter
The NTSB is reviewing reports of cracks in a key component during a two-day hearing into the Nov. UPS MD-11F crash near Louisville, Kentucky that killed 15 people. In parallel, a US safety investigator says UPS determined it needed no further action after reviewing a 2011 Boeing service letter.