As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO DOOR CUTOUT FWD SHIELD PANEL HAS CORROSION ON UPPER AND LOWER SURFACES. GROUNDED - YES. DAMAGE FOUND TO BE OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1 REMOVED AND REPLACED SHIELD PANEL IAW B737-900ER SRM 51-40-02-0G-0 W=.4 O=.050 R=.040 L=8 D=.010