Narrative:

At the time of the event I was the PIC in a single pilot operation from ZZZZ to ZZZZ1. The purpose of the flight was ferrying the aircraft from ZZZZ to ZZZZ1. At the relevant time I was cruising at FL190 when I noticed that I heard no communication for several mins and I suspected radio communication failure. I attempted to establish radio communication by calling on the last assigned frequency; the previous assigned frequency; 121.5 MHZ and 123.45 MHZ with no success. While I was attempting to find the cause of the radio problem I noticed the right engine operating rough and rapidly losing power. After going through the emergency procedures checking fuel situation and ensuring that the fuel pumps are on; testing the magnetos for correct operation 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 right engine with a very high possibility that the left engine will soon develop a similar problem I declared an emergency on 121.5 and commenced descend to FL170. During the descent I further attempted to restore radio communication and eventually after resetting both communication and audio panel the radios came back alive and I managed to maintain 2 way communication with no further problem.

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Original NASA ASRS Text

Title: 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.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.