As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIELD AT STA 767-787 RBL 21 CORRODED ON UPPER AND LOWER SURFACES. GROUNDED - YES. REMOVED COROSION AND CHECKED LIMITS FOUND SHIELD OUT OF LIMITS IAW B737-900ER SRM 53-60-15-1A-1. REMOVED AND REPLACED SHIELD IAW B737-900ER SRM 51-40-02-0G-0W.5 O .050 R .037 L 1.1 D .013.