C414 SNGL PLT ON TRANS--ATLANTIC FERRY FLT LOSES RADIO CONTACT AND DEVELOPS POWER LOSS ON RIGHT ENGINE. DECLARES EMERGENCY AND LANDS AT NEAREST SUITABLE ARPT.

Narrative

AT THE TIME OF THE EVENT I WAS THE PIC IN A SINGLE PLT OP FROM ZZZZ TO ZZZZ1. THE PURPOSE OF THE FLT WAS FERRYING THE ACFT FROM ZZZZ TO ZZZZ1. AT THE RELEVANT TIME I WAS CRUISING AT FL190 WHEN I NOTICED THAT I HEARD NO COM FOR SEVERAL MINS AND I SUSPECTED RADIO COM FAILURE. I ATTEMPTED TO ESTABLISH RADIO COM BY CALLING ON THE LAST ASSIGNED FREQ; THE PREVIOUS ASSIGNED FREQ; 121.5 MHZ AND 123.45 MHZ WITH NO SUCCESS. WHILE I WAS ATTEMPTING TO FIND THE CAUSE OF THE RADIO PROB I NOTICED THE R ENG OPERATING ROUGH AND RAPIDLY LOSING PWR. AFTER GOING THROUGH THE EMER PROCS CHKING FUEL SITUATION AND ENSURING THAT THE FUEL PUMPS ARE ON; TESTING THE MAGNETOS FOR CORRECT OP AND SWITCHING TO ALTERNATE AIR SOURCE WITH NO IMPROVEMENT I CONCLUDED I HAD FUEL ICING CONDITION. I WAS IN VMC AND FEARING A TOTAL LOSS OF THE R ENG WITH A VERY HIGH POSSIBILITY THAT THE L ENG WILL SOON DEVELOP A SIMILAR PROB I DECLARED AN EMER ON 121.5 AND COMMENCED DSND TO FL170. DURING THE DSCNT I FURTHER ATTEMPTED TO RESTORE RADIO COM AND EVENTUALLY AFTER RESETTING BOTH COM AND AUDIO PANEL THE RADIOS CAME BACK ALIVE AND I MANAGED TO MAINTAIN 2 WAY COM WITH NO FURTHER PROB.