As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED THAT DURING TAKEOFF ROLL, BOTH FLIGHT DIRECTORS BLANKED, THRUST HOLD MODE WAS ENGAGED WITH LNAV AND VNAV MODE BLANK. SELECTED HDG SEL AND LVL CHG AND BOTH MODES REAPPEARED, AND FLIGHT DIRECTOR REAPPEARED. MAINTENANCE CARRIED OUT AN ADIRS BITE TEST. L/H SIDE, TAT PROBE FAULT WAS FOUND. TAT PROBE WAS REPLACED AS PER AMM 34-21-06 AND CHECKS SERVICEABLE (TC# 20190626007)