As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED THAT PASSENGER HEARD ELECTRICAL ARCING NOISE FROM FLOOR AT ROW 27 WHEN GEAR RETRACTED, FOLLOWED BY ELECTRICAL BURNING SMELL. UPON LANDING FOUND RECIRCULATION FAN BREAKERS POPPED. MAINTENANCE REMOVED AND REPLACED RECIRCULATION FAN PER AMM. OPERATION AND LEAK CHECKS GOOD.