What was found
MCI - DURING OP 16 MAINTENANCE CHECK, FOUND FS 917 ABOVE LONGERON 27L, FORMER HAS .50 INCH EYEBROW CRACK ON FORWARD SIDE. WELDED FLOOR SUPPORT AND STRESS RELIEVED. REINSTALLED REPAIRED PER SSRM 53-00-106. ACFT TT: 70,506 HOURS. ACFT TC: 66,322. (X)