As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUSELAGE EXTERNAL SKIN AT AFT LAV SERVICING POINT IS CORRODED BETWEEN FS559+80 AND FS559+112 BETWEEN STGR20R AND STGR24R. REPAIRED EXTERNAL SKIN AT AFT LAV SERVICING POINT BETWEEN FS559+80 AND FS559+112 BETWEEN STGR20R AND STGR24R IAW MHIRJ REO 601R-53-51-729 REV -- DATED 2026-01-27. COMPLETED TASK CARD 51-900-1003-SKY.