What was found
FORWARD CARGO PIT STATION 500L FLOOR STRUCTURE HAS CORROSION FROM S26L TO S26R UPPER SURFACE (MARKED IN RED). GROUNDED - YES. REMOVED CORROSION FROM FWD PIT STA. 500 LWR BULKHEAD SUPPORT. ORIG. THICKNESS IS .071. AFTER CORROSION REMOVAL, MIN. REMAINING THICKNESS IS .053. MAT'L LOSS IS .018. OUT OF LIMITS IAW B737-900ER SRM 53-30-08-1A-1. RECIEVED NEW SUPPORT. PO: 1046830.1 AND LOCATED AND DRILLED IAW SRM 51-40-05. INSTALLED SUPPORT IAW SRM 51-40-02 AND IPC 53-11-01-42.