Narrative:

I was captain of a flight from cmh to cvg. The aircraft was landed on runway 36R at cvg by the first officer, and as I attempted to exit the runway on to taxiway T6, the aircraft encountered a snow bank and became stuck. The aircraft was under complete control at all times. There were no injuries to crew or passenger. There appeared to be no damage to the aircraft. In hindsight it is apparent that my attempt to enter taxiway T6 (it is a highspd taxiway) was premature. The environment and runway conditions at this time were not good. It was dark, it was snowing and runway lighting was not optimal due to extensive snow cover. I believed I knew where I was, but I wasn't there. I am quite familiar with the airport, but that was also part of my mistake. I recalled passing taxiway T5, a reverse high speed for runway 36R, and I thought taxiway T6 was practically adjacent to it, but it is not. The only lighting I recall seeing was the blue edge lights of what I thought were taxiway T6, I did not see any runway edge lights as I began my exit. I also felt under a perceived pressure to get off the runway. Departures were being delayed because of the snow and arriving traffic. I also believe fatigue played a part. I was into my 10TH hour on duty, 5TH leg of the day, and 10TH leg in 2 days. So my level of alertness was not optimum. I followed visual cues that were incomplete and situational awareness that was incorrect. CRM could have been better also, I should have asked my first officer for help in finding the taxiway and of course, he could have spoken up also if he was uncomfortable. He did, but it was too late. Supplemental information from acn 325443: as the landing and taxi lights began to reflect off the snow berm created by the plowing of the runway (runway edge), it became apparent to me that the captain had miscalculated the taxiway T6 centerline and was committing himself to a left turn. We taxied off the runway edge into a snow berm short of taxiway T6. Passenger and crew were not injured. Tower was advised of situation as well as the flight attendant and passenger. Company maintenance control was notified. Aircraft was secured and engines shut down per checklists. Passenger were unloaded into a company shuttle bus and transported to terminal.

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Original NASA ASRS Text

Title: A COMMUTER TURBOPROP EXITED THE RWY SHORT OF A TXWY DURING LIMITED VISIBILITY. ONLY THE S ROW OF THE TXWY LIGHTS WERE VISIBLE AND THE CAPT COULD NOT SEE ANY RWY LIGHTS. THE ACFT BECAME STUCK IN A BERM AND THE PAX HAD TO BE DEPLANED AND TRANSPORTED TO THE TERMINAL.

Narrative: I WAS CAPT OF A FLT FROM CMH TO CVG. THE ACFT WAS LANDED ON RWY 36R AT CVG BY THE FO, AND AS I ATTEMPTED TO EXIT THE RWY ON TO TXWY T6, THE ACFT ENCOUNTERED A SNOW BANK AND BECAME STUCK. THE ACFT WAS UNDER COMPLETE CTL AT ALL TIMES. THERE WERE NO INJURIES TO CREW OR PAX. THERE APPEARED TO BE NO DAMAGE TO THE ACFT. IN HINDSIGHT IT IS APPARENT THAT MY ATTEMPT TO ENTER TXWY T6 (IT IS A HIGHSPD TXWY) WAS PREMATURE. THE ENVIRONMENT AND RWY CONDITIONS AT THIS TIME WERE NOT GOOD. IT WAS DARK, IT WAS SNOWING AND RWY LIGHTING WAS NOT OPTIMAL DUE TO EXTENSIVE SNOW COVER. I BELIEVED I KNEW WHERE I WAS, BUT I WASN'T THERE. I AM QUITE FAMILIAR WITH THE ARPT, BUT THAT WAS ALSO PART OF MY MISTAKE. I RECALLED PASSING TXWY T5, A REVERSE HIGH SPD FOR RWY 36R, AND I THOUGHT TXWY T6 WAS PRACTICALLY ADJACENT TO IT, BUT IT IS NOT. THE ONLY LIGHTING I RECALL SEEING WAS THE BLUE EDGE LIGHTS OF WHAT I THOUGHT WERE TXWY T6, I DID NOT SEE ANY RWY EDGE LIGHTS AS I BEGAN MY EXIT. I ALSO FELT UNDER A PERCEIVED PRESSURE TO GET OFF THE RWY. DEPS WERE BEING DELAYED BECAUSE OF THE SNOW AND ARRIVING TFC. I ALSO BELIEVE FATIGUE PLAYED A PART. I WAS INTO MY 10TH HR ON DUTY, 5TH LEG OF THE DAY, AND 10TH LEG IN 2 DAYS. SO MY LEVEL OF ALERTNESS WAS NOT OPTIMUM. I FOLLOWED VISUAL CUES THAT WERE INCOMPLETE AND SITUATIONAL AWARENESS THAT WAS INCORRECT. CRM COULD HAVE BEEN BETTER ALSO, I SHOULD HAVE ASKED MY FO FOR HELP IN FINDING THE TXWY AND OF COURSE, HE COULD HAVE SPOKEN UP ALSO IF HE WAS UNCOMFORTABLE. HE DID, BUT IT WAS TOO LATE. SUPPLEMENTAL INFO FROM ACN 325443: AS THE LNDG AND TAXI LIGHTS BEGAN TO REFLECT OFF THE SNOW BERM CREATED BY THE PLOWING OF THE RWY (RWY EDGE), IT BECAME APPARENT TO ME THAT THE CAPT HAD MISCALCULATED THE TXWY T6 CTRLINE AND WAS COMMITTING HIMSELF TO A L TURN. WE TAXIED OFF THE RWY EDGE INTO A SNOW BERM SHORT OF TXWY T6. PAX AND CREW WERE NOT INJURED. TWR WAS ADVISED OF SIT AS WELL AS THE FLT ATTENDANT AND PAX. COMPANY MAINT CTL WAS NOTIFIED. ACFT WAS SECURED AND ENGS SHUT DOWN PER CHKLISTS. PAX WERE UNLOADED INTO A COMPANY SHUTTLE BUS AND TRANSPORTED TO TERMINAL.

Data retrieved from NASA's ASRS site as of July 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.