As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS EN ROUTE TO ABR FROM MSP AND THE CREW NOTICED NO LANDING LIGHTS WORKING. DISPATCH DECIDED TO TURN THEM AROUND, BECAUSE OF THE LOADS FROM ABR TO PIR. MAINTENANCE RELAMPED RT AND LT LANDING LIGHTS (P/N Q4681), OPS CHECK GOOD.