As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING T/C 05-020-01. FOUND ENG FAULT 73-43850 ENG FAN INLET (T12) TEMP SENSOR AND CALCULATED ADIRU AIR TEMP SIGNALS DO NOT AGREE ON ENG 1. GROUNDED - YES. PERFORMED B737-9 IFIM TASK G73-21-00-810-937. ENG FAULT NOT ACTIVE AND IS A INTERMITTENT FAULT.