Narrative:

During pushback; the wing walker did not stay at the wingtip station but walked next to the tug. We brought this to their attention; and the driver apologized. The wing walkers have to stay at their stations during push until brake is set. It's hard to see a stop signal and relay to the driver when the wing walker is under/covered by the nose area of the aircraft.

Google
 

Original NASA ASRS Text

Title: B737-400 FLT CREW RPTS WING WALKERS ON PUSHBACK ARE NOT STATIONED AT WINGTIPS AS REQUIRED.

Narrative: DURING PUSHBACK; THE WING WALKER DID NOT STAY AT THE WINGTIP STATION BUT WALKED NEXT TO THE TUG. WE BROUGHT THIS TO THEIR ATTN; AND THE DRIVER APOLOGIZED. THE WING WALKERS HAVE TO STAY AT THEIR STATIONS DURING PUSH UNTIL BRAKE IS SET. IT'S HARD TO SEE A STOP SIGNAL AND RELAY TO THE DRIVER WHEN THE WING WALKER IS UNDER/COVERED BY THE NOSE AREA OF THE ACFT.

Data retrieved from NASA's ASRS site as of January 2009 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.