As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED, INFLIGHT AFT AVIONICS RACK SMOKE INDICATION. INSPECTED AND VERIFIED LIVE TV SYSTEM AT FAULT IAW 23-39-00-810-801. PERFORMED TSM 24-00-00-810-823. THERE WERE NO EVIDENCE OF ACTUAL SMOKE. ACTIVATED LTV SYS, VISUALLY INSPECTED AVIONICS RACK AREA. MONITORED FOR 2 HOURS WITH NO DEFECT. R & R AFT RACK FAN AND FAN VACUUM SENSOR. OPS CHECKED NORMAL IAW 23-39-00.