As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SURFACE CORROSION ON AC SKIN AT LOWER TCAS ANTENNA STA 450, RBL 2 AND RBL 4 AREA 2 INCHES X 4 INCHES APPROX. BLENDED SURFACE CORROSION ON SKIN DOUBLER LOWER TCAS ANTENNA STA 450, RBL 2 AND 4 MATERIAL REMOVED RANGED FROM .001 TO .003 MEASURES THICKNESS FOUND TO BE WITHIN LIMITS IAW SRM. TREATED AREA IAW SRM. (K)