As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON INTERCOSTAL FWD OF HOT DRAIN MAST INTERNAL SIDE OF FUSELAGE FROM FR 86 - 87 STGR 26R - 25R. REMOVED AND REPLACED INTERCOSTAL BETWEEN FRAME 86-87 BETWEEN STRINGER 26R-25R REF SRM 51-40-08. SEE WIPS AND TASKS FOR WORK PERFORMED