As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: TCAS AURAL ALERT "TCAS SYSTEM TEST OK" CONTINUES IN FLIGHT EVERY 15-30 SECONDS, BURNING ELECTRICAL ODOR FROM TCAS BOX PULLED CB K10. MAINTENANCE REPLACED ATC/TCAS CONTROL PANEL (AALA202310025988) PER AMM 34-52-10 AND TCAS PROCESSOR PER AMM 34-43-10. (AALA202310027239) A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.