What was found
FWD CARGO COMPARTMENT RH TRANSITION PANELS HAVE CORROSION AREAS MARKED WITH RED. GROUNDED - YES. EVALUATED DAMAGE/CORROSION FROM FWD PIT R/H TRANSITION PANEL FROM STA 500A-STA 500L IAW B737-900ER SRM 53-00-53-1A-2. ORIG THICKNESS : .040 IAW B737-900ER SRM 53-60-53-OI-2, REMOVED : .006 REMAINING: .034 & IS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2. TOOL#T8224V DUE: 27/MAR/25. REMOVED & REPAIRED TRANSITION PANEL FROM FWD PIT R/H TRANSITION PANEL FROM STA 500A-500L IAW B737-900ER SRM 53-00-53-2R-5. INSTALLED TRANSITION PANEL IAW B737-900ER SRM 53-00-53-2R-5.