A PEGASUS 912 TRIKE IN CRUISE AT 1500 FT EXPERIENCES A ROUGH RUNNING ENG WITH LOW PWR.

Narrative

I TOOK OFF FROM THE ZZZ ARPT AT XA00 HRS. I FLEW W TOWARDS ZZZ1 SIGHTSEEING. I HEADED BACK TOWARDS THE ZZZ ARPT AT XB00 HRS WHEN I EXPERIENCED A ROUGH ENG. SURVEYING MY ALTERNATIVES; I SPOTTED A ROAD RUNNING N AND S. I WAS FLYING DUE E AND DECIDED TO LAND ON THE ROAD; RATHER THAN EXPERIENCE AN ENG OUT OVER THE CORN. AS I DSNDED TO BUILD UP AIRSPEED; I NOTICED A PWR LINE. I HAD 2 CHOICES: 1)TRY TO GO OVER IT WITH NO REAL ENG PWR; OR 2) GO UNDER IT. I DECIDED TO GO UNDER THE PWR LINES WHEN MY TOP KING POST ON THE GLIDER STRUCK THE LOWER PWR LINE SEVERING IT. BECAUSE OF THE DAMAGE; I DECIDED NOT TO TURN R AND LAND ON THE ROAD; BUT TO PROCEED DUE E AND STAY 4 FT OFF THE GND AND LAND AT THE ARPT IF I COULD MAKE IT; WHICH I DID. DAMAGE TO ACFT WAS MINIMAL. POSSIBLE CAUSE OF ENG ROUGHNESS WAS CARB ICE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THAT WHEN THE ENG STARTED TO RUN ROUGH AND LOSE PWR THE DECISION WAS MADE TO LAND ON A ROAD. THE RPTR SAID ON APCH TO THE ROAD THE KING POST ON THE WING STRUCK AND SEVERED A PWR LINE. THE RPTR STATED THE ALT WAS ABOUT 4 FT AND THE ENG WAS ABLE TO MAINTAIN THIS ALT AND REACH AN ARPT. THE RPTR SAID THE KING POST INCURRED SLIGHT DAMAGE. THE RPTR STATED THE PWR COMPANY WAS ADVISED OF THE PWR LINE DAMAGE. THE RPTR SAID THIS INCIDENT WAS NOT RPTED TO THE FAA.