Line Crew lessons learned

Most glider ports have a standardized procedure for 'the one right way' for line crew to operate in normal and abnormal launch situations.

It would be useful to catalog the minor and major mistakes that people make in glider ground operations, the incorrect deviations from the standardized procedure that people make. Many of these mistakes are easily avoidable (and the potential accidents preventable).

Here's an example to get the ball rolling:

The wing runner provides a supplementary scan for traffic in the pattern prior to lifting the wing tip. Sometimes a wing runner will only look where the traffic is 'supposed to be'. They look at normal pattern height and they do not look below normal pattern altitude. They do not look for a glider that is low and flying the 'wrong way' on the upwind leg of the normal pattern. None of these pattern aberrations should happen, but they do and it is easy for a wing runner to make a 360 degree scan for traffic.

If anyone cares to comment on or link to their 'one right way' of launching and ground handling gliders, that would be welcome, but I'm mostly interested in the hearing about the mistakes that people slip into making.