As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CHECK, CORROSION WAS FOUND OUT OF LIMITS ON SEAT TRACK AT STA 1064 RBL 44, FLANGE BROKEN. REMOVED SEAT TRACK IAW SRM 513002. FABRICATED NEW SEAT TRACK PER SAMPLE FROM BAC 1520792. TREATED AND PRIMED IAW SRM 511002, MM 512002. INSTALLED IAW SRM 513002.