What was found
UPPER CARGO COMPARTMENT BL100R TRACK RAIL, F.S. 745 TO 765 HAS 3 EACH CHAFE MARKS. SEAT TRACK CHAFING MARKS OUT OF LIMITS IAW SRM 53-70-00 FIG.5 MATL LOSS 0.10 AFTER CLEAN-UP. REMOVED SEAT TRACK AND 4EA. FLOOR SUPPORTS FROM STATION 635 TO FS 795, RBL 100 IAW SRM 51-31-01. FABRICATED NEW SEAT TRACK PN TMS60-19943, LOCATED AND DRILLED IAW SRM 53-70-00 AND SRM 51-31-01. INSTALLED NEW SEAT TRACK AND 4 EA FLOOR SUPPORTS IAW SRM 53-70-00 AND SRM 51-31-01. REPAIR CLASSIFIED AS MAJOR REPAIR.