As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, THE NR 1 AND NR 2 RADIOS FAILED TO TRANSMIT AND HAD INTERMITTENT RECEPTION. AIRCRAFT RETURNED TO MSP AFTER A BRIEF RECEPTION FROM THE TOWER CLEARING THE FLIGHT TO LAND. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED BOTH VHF CONTROL PANELS AND AUDIO CONTROL PANELS. OPERATIONAL CHECK GOOD.