What was found
FWD CARGO COMPT STA 500L, LOWER BULKHEAD ATTACH ANGLE CORRODED. S 25R - S 25L. GROUNDED - YES. REMOVED CORROSION FROM FWD PIT LOWER BULKHEAD ANGLE AT STA 500L IAW B737-900ER SRM 53-30-08-1A-1. MINIMUM ALLOWABLE REMAINING THICKNESS IS .056". REMAINING THICKNESS IS .020" AND IS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-30-08-1A-1. REMOVED & INSTALLED NEW FWD PIT AFT LOWER BULKHEAD ANGLE AT STA 500L PN: 143A9485-35 IAW B737-900ER SRM 51-40-02- & SRM 51-40-05