What was found
DURING B-2 CHECK, FOUND MAIN CABIN SEAT TRACK CORRODED AT BS 360 TO BS 344, RBL 25.5. REF FASI N/R 50402, FABRICATED REPAIR FROM BAC 1520-792 MATERIAL. LENGTH 140 INCHES REPAIRED IAW B727 SRM 53-10-5, FIGURE 7 AND 53-10-2, FIGURE 7. (M)