As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTION NOTED THAT THE MAIN CABIN SEAT TRACK HAS ELONGATED SLOTS AT BS. 720B-740 LBL 45.0. REMOVED 2 EA SEAT TRACK AT LBL 45 BS. 640-740 DISPLACED SPLICE PER DWS 2902 INSTALLED NEW SEAT TRACK IAW SRM 51-30-2, 53-10-5. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.