What was found
DURING FLIGHT SQUAWK FROM PILOT WAS AS FOLLOWS MARINE RADIO INOP, COMM 1 RADIO INOP, COMM 2 RADIO INOPERATIVE, MFD FLICKERING & INOPERATIVE, COMPLETE ELECTRICAL FAILURE. REPLACED THE ENGINE. REPLACING THE ENGINE DID FIX THE CONDITION. NO TEARDOWN REPORT OF OFF UNIT ENGINE AVAILABLE TO REPORT.