Narrative:

After landing and pulling onto the ramp the right engine died. The mixture was rich and all the fuel pumps were on. I attempted to restart right engine because it was difficult to taxi on left engine only. While cranking the right engine backfired and caught on fire. I shut down fuel and electrical and evacuated the aircraft, and extinguished the fire. The manifold drain line was found to be blocked by a piece of rubber baffling, allowing fuel to pool up inside of cowling rather than to drain through bottom of cowling. No damage occurred, but with an extreme overprime condition the situation could have been explosive.

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Original NASA ASRS Text

Title: ENGINE FAILURE AFTER LNDG, FIRE ON START UP.

Narrative: AFTER LNDG AND PULLING ONTO THE RAMP THE RIGHT ENG DIED. THE MIXTURE WAS RICH AND ALL THE FUEL PUMPS WERE ON. I ATTEMPTED TO RESTART RIGHT ENG BECAUSE IT WAS DIFFICULT TO TAXI ON LEFT ENG ONLY. WHILE CRANKING THE RIGHT ENG BACKFIRED AND CAUGHT ON FIRE. I SHUT DOWN FUEL AND ELECTRICAL AND EVACUATED THE ACFT, AND EXTINGUISHED THE FIRE. THE MANIFOLD DRAIN LINE WAS FOUND TO BE BLOCKED BY A PIECE OF RUBBER BAFFLING, ALLOWING FUEL TO POOL UP INSIDE OF COWLING RATHER THAN TO DRAIN THROUGH BOTTOM OF COWLING. NO DAMAGE OCCURRED, BUT WITH AN EXTREME OVERPRIME CONDITION THE SITUATION COULD HAVE BEEN EXPLOSIVE.

Data retrieved from NASA's ASRS site as of August 2007 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.