As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSP, MX FOUND THE NR1 ENGINE LT THRUST REVERSER CORE COWL INNER SKIN DAMAGED/DELAMINATED. REF FIG 1. DISPOSITION IS TO REPAIR THE SIDEWALL DAMAGE ON THE THRUST REVERSER IAW AMM 78-31-01, AND REPLACEMENT OF THE THRUST REVERSER AT THE NEXT "A" CHECK. CLASSIFIED AS MAJOR.