As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER T/O, RECEIVED LEVEL ONE "TAT PROBE HEAT" ALERT. RETURNED TO ELP PER GOCC REQUEST. PERFORMED RTS ON MSC. RTS PASSED NO FAULTS IN FAULT HISTORY OR CURRENT FAULTS. PERFORMED ADJ TEST PER AMM 30-30-02-5 PROBE HEATER WORKS, BUT WHEN BREAKER IS PULLED TAT PROBE HEAT ALERT DOES NOT SHOW. CHECKED WIRING PER WDM 30-30-01 MSC RACK TO PROBE BACK TO RACK WIRING CHECKED GOOD. CK CONTINUITY ON PROBE (23 OHMS). CHECKED PROBE TO ACFT GROUND CK GOOD. SUSPECT BAD MSC.