What was found
MCI - DURING OP 16 MAINTENANCE CHECK, IN TAIL COMPARTMENT FOUND THE LOWER AFT SIDE OF PRESS BULKHEAD HAD BULGE AND CORROSION ON A Y-CHORD RBL, 4 INCHES. REMOVED CORROSION PER SRM 51-10-3, REPAIRED BULKHEAD PER SRM 53-03, FIG 9 SHT 2, AND SRM 51-00-0 PAGE 15 ITEM E. (M)