As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO PIT L/H TRANS PNL STA 727C TO STA 847 UPPER AND LOWER CORRODED. GROUNDED - YES. REMOVED CORROSION FOUND TO BE OUT OF LIMITS IAW B737-900 ER SRM 53-00-53-1A-2 FIG 103, FABRICATED REPAIR PARTS IAW B737-900ER SRN 53-00-53-2R-5 PARA 4L AND INSTALLED REPAIR PARTS AND TRANSITION PANEL IAW B737-900ER SRM 53-00-53-2R4-5. W=.5 O=.040 R=.017 L=1.8 D=.023.