Narrative:

We were receiving parking guidance from ground marshallers. As it is not possible to view the wingtip from the cockpit, we rely on the marshallers to give proper guidance to avoid ground obstructions. As we were given a hard right turn command, and began our turn, the 'wing walker' gave the 'stop' command. The left wingtip had contacted a blast fence. This would be a difficult situation to prevent from the cockpit, aside from just stopping the aircraft and refusing to follow the signals given by ground marshallers. When it gets that close, the aircraft should be stopped and parking re-evaluated.

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Original NASA ASRS Text

Title: B757 WINGTIP STRIKE ON BLAST FENCE IN RAMP OP ACFT PARKING PROC. ACFT DAMAGED. GND CREW FLC COORD PROB. CROWDED RAMP.

Narrative: WE WERE RECEIVING PARKING GUIDANCE FROM GND MARSHALLERS. AS IT IS NOT POSSIBLE TO VIEW THE WINGTIP FROM THE COCKPIT, WE RELY ON THE MARSHALLERS TO GIVE PROPER GUIDANCE TO AVOID GND OBSTRUCTIONS. AS WE WERE GIVEN A HARD R TURN COMMAND, AND BEGAN OUR TURN, THE 'WING WALKER' GAVE THE 'STOP' COMMAND. THE L WINGTIP HAD CONTACTED A BLAST FENCE. THIS WOULD BE A DIFFICULT SIT TO PREVENT FROM THE COCKPIT, ASIDE FROM JUST STOPPING THE ACFT AND REFUSING TO FOLLOW THE SIGNALS GIVEN BY GND MARSHALLERS. WHEN IT GETS THAT CLOSE, THE ACFT SHOULD BE STOPPED AND PARKING RE-EVALUATED.

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.