As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER FUSELAGE III AFT WATER PAN RETAINER CORRODED AT 21263.0 - 21675.0, STRINGER 27L - 29L. ACCOMPLISHED THE MODIFICATION OF THE WATER BOX RETAINING DOUBLERS PN 170-86656-001 & 170-86657-001 IAW THE EO E17X-5300-004 REV IR WO 694221 & 19451311E3.