As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) RECEIVED REPORT FROM ATC, THEY LOST COMMUNICATION FOR 61 MINUTES. THEY TRIED ELCAL & EMER FREQUENCY BUT NO RESPONSE FROM FLIGHT. ATC REQUEST FOLLOW UP & REPORT FROM FLIGHT CREW. RESOLUTION MX TESTED ALL THE RADIOS & FOUND NO FAULT WITH THEIR OPERATION. NO DEFECT WAS WRITTEN UP BY FLIGHT CREW. NO REPEAT SINCE THIS EVENT.