As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO LH SIDE TRANSITION PANELS HAVE VARIOUS SPOTS OF CORROSION FROM BULKHEAD STA 727 TO 847. GROUNDED - YES. EVALUATED AFT CARGO LH TRANSITION PANELS. REMOVED CORROSION. REMOVED .040 ORIGINAL .040 REMAINING .000 FOUND TO BE OUT OF LIMITS. REMOVED LH TRANSITION, FABRICATED NEW AND REINSTALLED IAW B737-900 SRM 53-00-53-1A-2 AND SRM 53-00-53-2R-5.