What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTIONS IT WAS NOTED THAT THE MAIN CABIN SEAT TRACK LOCATED AT BS. 760-850, LBL 45.5 HAD CORROSION. REMOVED SEAT TRACK FROM STATION 760-850, FABRICATED NEW SEAT TRACK, INSTALLED NEW SEAT TRACK IAW SRM 53-10-2, 53-10-5 & 51-10-2. NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.