What was found
DURING HEAVY CHECK RT INBD SEAT TRACK BEAM BETWEEN FRAMES 24-25 IS CORRODED. MAINTENANCE R & R RT INBD SEAT TRACK BEAM BETWEEN FRAMES 24-25 IAW SRM 51-43-01. REF CARDS C1-C2 IN VP 016005-2015/205 FOR WORK DETAILS, PN 170-67861-005, SEAT TRACK. ACFT REMAINS UNTIL HEAVY CHECK IS COMPLETED.