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 HOLES AT BS. 720A -720D LBL 24.75. REMOVED AND REPLACED SEAT TRACK IAW SRM 51-30-2, 53-10-5. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.