As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 2C+12A+150M CHECK, MECHANIC FOUND CENTER ACCESSORY COMPARTMENT LWR SKIN SPLICE SURFACE CORRODED AT STA Y=1165, LONGERON 51L LEFT SIDE. BLEND OUT CORRODED AREA PER MD-11F SRM VOL.II 51-21-01 REV.38. MEASURE REWORK AREA STILL WITHIN ALLOWABLE DAMAGE LIMITATION PER MD-11F SRM VOL.1 53-00-01 FIG 4 REV.38. APPLY PROTECTIVE COATING, CONDITION CHECK NORMAL. (EGAT NRC NO. U5065).