Narrative:

Inadvertent taxi onto a dead-end taxiway, requiring us to be tugged backwards by ground personnel. A very short taxi involving 2 90 degree turns immediately following the previous turn. By the time I was rolling out of the first turn, my vision was focused down the taxiway for reference and missed the turn 90 degrees to my right. Dead-end taxiway not marked very well, other than 2 small dead-end signs almost invisible from a B-757 cockpit. Dusk was a factor as the dead-end taxiway ahead looked normal. No harm done, other than the inconvenience of needing to be pushed back. Callback conversation with reporter revealed the following information: the reporter states that the turn from the ramp area (G4) onto taxiway G is fairly tight for a B-757-200 and the turn from taxiway G on to taxiway H is even more drastic (though it is a wider area) because it is more than 90 degrees. The visual presentation as one completes the first turn (from ramp area G-4 to taxiway G) is that you should taxi straight ahead a bit. This is misleading, instead you must make an immediate hard right turn. There are 2 small signs (about automobile level) that are very difficult to see at dusk (maybe unlighted, but he is not sure. He did not see any lights during this excursion). The taxiway also narrows if one misses the turn to taxiway H.

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Original NASA ASRS Text

Title: DEV FROM CLRNC. ACR CREW TAXIES PAST THEIR TURN POINT AND HAS TO BE PUSHED BACK FROM A DEAD-END TXWY.

Narrative: INADVERTENT TAXI ONTO A DEAD-END TXWY, REQUIRING US TO BE TUGGED BACKWARDS BY GND PERSONNEL. A VERY SHORT TAXI INVOLVING 2 90 DEG TURNS IMMEDIATELY FOLLOWING THE PREVIOUS TURN. BY THE TIME I WAS ROLLING OUT OF THE FIRST TURN, MY VISION WAS FOCUSED DOWN THE TXWY FOR REF AND MISSED THE TURN 90 DEGS TO MY R. DEAD-END TXWY NOT MARKED VERY WELL, OTHER THAN 2 SMALL DEAD-END SIGNS ALMOST INVISIBLE FROM A B-757 COCKPIT. DUSK WAS A FACTOR AS THE DEAD-END TXWY AHEAD LOOKED NORMAL. NO HARM DONE, OTHER THAN THE INCONVENIENCE OF NEEDING TO BE PUSHED BACK. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATES THAT THE TURN FROM THE RAMP AREA (G4) ONTO TXWY G IS FAIRLY TIGHT FOR A B-757-200 AND THE TURN FROM TXWY G ON TO TXWY H IS EVEN MORE DRASTIC (THOUGH IT IS A WIDER AREA) BECAUSE IT IS MORE THAN 90 DEGS. THE VISUAL PRESENTATION AS ONE COMPLETES THE FIRST TURN (FROM RAMP AREA G-4 TO TXWY G) IS THAT YOU SHOULD TAXI STRAIGHT AHEAD A BIT. THIS IS MISLEADING, INSTEAD YOU MUST MAKE AN IMMEDIATE HARD R TURN. THERE ARE 2 SMALL SIGNS (ABOUT AUTOMOBILE LEVEL) THAT ARE VERY DIFFICULT TO SEE AT DUSK (MAYBE UNLIGHTED, BUT HE IS NOT SURE. HE DID NOT SEE ANY LIGHTS DURING THIS EXCURSION). THE TXWY ALSO NARROWS IF ONE MISSES THE TURN TO TXWY H.

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.