What was found
FLOOR WEB PLATE HAS CORROSION SPOTS BETWEEN STA 986 THRU STA 992 AND RBL 33 THRU RBL 44, IN THE AFT CABIN. GROUNDED - YES. LOCATED AND DRILLED REPLACEMENT WEB IAW 737-800 SRM 51-40-05-0G-0. CORROISON REMOVAL WAS 100% MATL LOSS AND IS OUT OF LIMITS IAW 737-800 SRM 53-70-51-1A-1. PART WAS REMOVED ON MIG5 OK273681. NEW WEB WAS LOCATED AND DRILLED ON WORK BENCH IAW 737-800 SRM 51-40-05-0G-0 NEW PART TO BE INSTALLED ON MIG5 OK273681 AAR W/O 1019442 2000-0109W=2" O=.040 R=0 L=2" D=.040.