As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TCAS FAIL FLAG SHOWS ON ND CAPTAIN'S. PERFORMED WIRING CHECK FOR TCAS TOP & BOTTOM ANTENNA & CHECKED TCAS COMPUTER UNIT IAW FIM 34-45 TASK 803, & WDM 34-45-21-10. WIRING CHKD GOOD, BUT FOUND TCAS COMPUTER UNIT FAILED. R & R THE TCAS COMPUTER UNIT IAW AMM 34-45-01/401. OPS CHKD GOOD.