Narrative:

After landing on runway 6R and exiting the runway on taxiway G. I was advised to taxi on G, cross runway 6L to taxiway east, and taxi on the terminal ramp to customs. After I crossed runway 6L on a well-plowed runway and taxiway area I encountered a completely white out area on the intersection of runway 6L, taxiway G, and taxiway east. The taxiway signage was unreadable due to snow cover on them. I inadvertently cut the corner short between taxiway G and taxiway east, taxied through about four to five inches of light snow on a frozen surface. I ended up on taxiway E1 and taxied to the customs ramp. No damage was noted to the airport lighting or aircraft. Anchorage snow removal does a great job for the most part, but perhaps should take a look at giving more attention to the intersection mentioned. With large aircraft such as B747 and DC10 taxiing out for departure on runway 32, they taxi up taxiway east and as they turn the corner they tend to drift the snow and cause the whiteout condition at taxiway G and taxiway east intersection, also blowing snow on the signage making it illegible. Contributing factors: 1) fatigue due to a nine-day international trip. 2) poor visibility due to ice fog.

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Original NASA ASRS Text

Title: A FLT CREW INADVERTENTLY TAXI OFF OF A TXWY DUE TO SNOW BUILD UP ON THE TXWY AND SIGNS.

Narrative: AFTER LNDG ON RWY 6R AND EXITING THE RWY ON TXWY G. I WAS ADVISED TO TAXI ON G, CROSS RWY 6L TO TXWY E, AND TAXI ON THE TERMINAL RAMP TO CUSTOMS. AFTER I CROSSED RWY 6L ON A WELL-PLOWED RWY AND TXWY AREA I ENCOUNTERED A COMPLETELY WHITE OUT AREA ON THE INTERSECTION OF RWY 6L, TXWY G, AND TXWY E. THE TXWY SIGNAGE WAS UNREADABLE DUE TO SNOW COVER ON THEM. I INADVERTENTLY CUT THE CORNER SHORT BETWEEN TXWY G AND TXWY E, TAXIED THROUGH ABOUT FOUR TO FIVE INCHES OF LIGHT SNOW ON A FROZEN SURFACE. I ENDED UP ON TXWY E1 AND TAXIED TO THE CUSTOMS RAMP. NO DAMAGE WAS NOTED TO THE ARPT LIGHTING OR ACFT. ANCHORAGE SNOW REMOVAL DOES A GREAT JOB FOR THE MOST PART, BUT PERHAPS SHOULD TAKE A LOOK AT GIVING MORE ATTENTION TO THE INTERSECTION MENTIONED. WITH LARGE ACFT SUCH AS B747 AND DC10 TAXIING OUT FOR DEP ON RWY 32, THEY TAXI UP TXWY E AND AS THEY TURN THE CORNER THEY TEND TO DRIFT THE SNOW AND CAUSE THE WHITEOUT CONDITION AT TXWY G AND TXWY E INTERSECTION, ALSO BLOWING SNOW ON THE SIGNAGE MAKING IT ILLEGIBLE. CONTRIBUTING FACTORS: 1) FATIGUE DUE TO A NINE-DAY INTERNATIONAL TRIP. 2) POOR VISIBILITY DUE TO ICE FOG.

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.