As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO R/H TRANSITION HAS MULTIPLE AREAS OF CORROSION BETWEEN STA 727+4" TO STA 727I+8". GROUNDED - YES. REMOVED DAMAGE ON AFT CARGO RH TRANSITION. BETWEEN STR 727 TO 7271. MAX MAT LOSS 0,005. FOUND TO BE OUT LIMITS, REPAIRED RH TRANSITION ON AFT CARGO COMPT BETWEEN STA 727 TO 727I. IAW B737-900 SRM 53-00-53-2R-5 AND SRM 51-40-02-OG-O W:1.5 O:0.040 R:0,035 L:2 D:0,005.