As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN AT L2 DOOR, DOOR SILL SUPPORT ANGLE IS CORRODED AT FASTENER HOLES AND AT EDGE MARKED. GROUNDED - YES. REMOVED CORROSION AS REQUIRED,ORIG THICKNESS 0.080" PER B737-900ER SRM 53-70-15-01-1.REMOVED 0.004" WITH 0.076" REMAINING FOUND WITHIN LIMITS IAW B737-900ER SRM 53-70-15-1A-1.RESTORED FINISH AS REQD IAW B737-900ER SRM 53-70-15-1A-1.