As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
C-CHECK. FRAME 49.500 TOP FLANGE IS CORRODED BY THE STANTION AT STR 31R. REMOVED TCAS PROCESSOR FOR ACCESS TO THE AREA. REMOVED STANTION FOR ACCESS. REMOVED CORROSION FROM TOP FLANGE AND STA MATING SURFACE OF FRAME IAW SRM 51-21-00-00-02 REV 7. REMOVED MATERIAL WITHIN LIMITS AND NDT PERFORMED WITH NO CRACKS NOTED. ALODINE AND PRIMED AND TREATED AREAS AS REQUIRED. INSTALLED STANTION AND INSTALLED TCAS PROCESSOR.