As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA - FLT 4562 - AFTER TAKEOFF, THE LEFT ENGINE OVERTEMP WARNING ILLUMINATED FOLLOWED BY A POWER SURGE. THE OVERTEMP WARNING REMAINED ILLUMINATED FOR 4 SECONDS THEN EXTINGUISHED. AIRCRAFT RETURNED TO LGA AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE LEFT ENGINE DUE TO EXCESS OVERTEMP. (X)