As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TCAS OMNIDIRECTIONAL ANTENNA DOUBLER AT STGR 27 IS CORRODED AT THE CONNECTOR HOLE. C-CHECK RO 1/5/2021. INSTALLED NEW TCAS DOUBLER AT STR 27 BETWEEN FS 295 AND FS 310, REF CRJ-700 SRM AND DWG. OPERATIONAL TEST GOOD OF THE TCAS SYSTEM, REF CRJ 700 AMM.