As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CARGO R/H TRANSITION PANEL CORRODED BETWEEN STA 480 TO STA 500A GROUNDED - YES. REMOVED CORROSION AND FOUND TO BE BEYON LIMITS IAW B737-900 SRM 53-30-15-01-1 / 53-30-15-1A-1 REMOVED DAMAGED PANEL (SHIELD ASSY) AND INSTALLED NEW SHIELD ASSY IAW B737-900 SRM 51-40-02-0G-0 PARA 4 AND 7 W=1.0" O=.032" R=.022" L=1.5" D=.010"