What was found
DURING C-CHECK, FOUND SEAT TRACK FROM BS 727B THROUGH 927, RBL 46, IS CORRODED AT THE FASTENERS AND CHIPPED AND GOUGED AT THE SCALLOPS. TRIMMED AND DRILLED NEW SEAT TRACKS 81.5 INCH BY 3.25 INCH BY 142.25 INCH BY 3.25 INCH FROM BAC 1520-792. INSTALLED IAW 53-10-5, 51-10-2 AND MM 51-21-0. (M)