What was found
AFT CARGO COMPARTMENT; DUMMY SEAT TRACK; OVERHEAD MAIN CABIN FLOOR STRUCTURE IS CRACKED IN THE RADIUS AT FRAME 60. STR 30R. REMOVED DUMMY SEAT TRACK IAW AMM 51-40-21, PG 7. LOCATED AND DRILLED HOLES IN THE NEW SEAT TRACK PN A5327828820300, PO NR 592553.5 IAW SRM 51-40-44. INSTALLED NEW DUMMY SEAT TRACK IAW AMM 51-40-21, PG 7.