As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED MAINTENANCE EVENT, FOUND GOUGING AND CHAFING PRESENT ON LT THRUST REVERSER DOOR SKIN. DAMAGE WAS MAPPED AND SENT TO MFG ENGINEERING FOR EVALUATION. MFG ENGINEERING DETERMINED DAMAGE IS NOT ACCEPTABLE, AND GRANTED EXTENSION FOR SERVICE PENDING AVAILABILITY OF SPARE PARTS OR A REPAIR DRAWING. A VISUAL INSPECTION PROGRAM WAS DEVELOPED BY MFG REQUIRING THE AFFECTED SKIN AREA BE INSPECTED EVERY 10 FLIGHTS UNTIL REPLACEMENT & REPAIR WAS ACCOMPLISHED.