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 RBL-21 CORRODED BETWEEN STA 500G TO STA 500F. GROUNDED - YES. BLENDED CORROSION ON TRANSITION PANEL REMAINING MATERIAL FOUND OUT OF LIMITS IAW B737-900ER SRM 53-00-53-1A-2, REPAIRED TRANSITION PANEL SECTION FROM STA 500E + 10.5 TO 500H +12 RH IAW B737-900ER SRM 53-00-53-2R-5 REPAIR 5.W = 1" O = 0.040" R = 0.030" L = 0.5 D = 0.010".