As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MX AND ENGINEERING SERVICES REPORTED THE NR 1 ENGINE OTBD THRUST REVERSER INNER HINGE FITTING WAS FOUND TO BE CRACKED. MX AND ENGINEERING SERVICES PERFORMED A HFEC INSPECTION OF THE DAMAGED HINGE TO DETERMINE THE EXACT LENGTH OF THE CRACK IAW NDT MANUAL STOP DRILLED THE CRACK AND SURFACE WELDED THE CRACK ON BOTH SIDES OF THE HINGE LUG USING 17-4PH WELDING ROD IAW ATI EO 78-757-4950, REV 1, APPROVED ON FORM 8110-3.