As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO BAY, FWD DOOR CUTOUT SIDE PLATE CHANNEL CORRODED. GROUNDED - YES. REMOVED CORROSION AND CHECKED LIMITS FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1 REMOVED AND REPLACED SIDE PLATE (SHIELDS) IAW B737-900SR SRM 51-40-02-0G-0.