As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND TCAS OMNI-DIRECTIONAL ANTENNA CORRODED WHEN REMOVING FOR SHEETMETAL. THIS REPAIR IS CLASSIFIED AS A REPAIR IAW ASA SOP 5702. REMOVED TCAS OMNI-DIRECTIONAL ANTENNA IAW AMM 34-43-07-000-801. INSTALLED SERVICABLE TCAS OMNI-DIRECTIONAL ANTENNA IAW AMM 34-43-07-000-801 AND IPC CRJ 900, 34-43-07 FIG 1, ITEM 5. PERFORMED OPS TEST OF TCAS IAW AMM 34-43-00-710-801. OPS TEST GOOD.