As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN AVIONICS BAY TCAS ANTENNA DOUBLER CORRODED BETWEEN FS 295.00 AND FS 310.00. C-CHECK RO 10/22/2020. REMOVED CORRODED TCAS ANTENNA DOUBLER BETWEEN FS 295 TO FS 310 AND INSTALLED NEW, REF CRJ700 SRM AND DWG. NO LEAKS NOTED. COMPLIED WITH TASK CARD. COMPLETED SKYWEST FORM M-337.