As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 3396, LT INTAKE HEAT INOP. LEFT ENGINE INTAKE WARNING LIGHT ON C/B POPPED. RESET TWO TIMES. AIR RETURN TO DTW. MAINTENANCE REMOVED AND REPLACED LT DE-ICE MODULE IAW SF340 AMM CHAPTER 30 SN/ON A00201, SN/OFF A00221 PN/ON & OFF 44730-501. PERFORMED REQUIRED GROUND OPS CHECKS RAN A/C FOR 30 MINUTES, NO FAULTS NOTED. ALL CHECKS GOOD AT THIS TIME.