As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AC WAS IN FOR HVY CK FOUND CENTER FUSELAGE 3 CORROSION FOUND ON RH IB SEAT TRACK FWD OF FR 76 FR 78 FR80 FR82 FR83 FR84. REPLACED SEAT TRACK PN 170-86082-005 IAW SRM 51-43-01, 51-43-02. SEE AAR NRC# 4500940-2000-0080 FOR WORK PERFORMED. AC RTS'ED.