Just looking TKs
It was the Ice mech who signed .....the sameone who placed the chock...he was present when we pushed back and witnessed the start up of the #4eng....whilst starting #3 he ran out onto the pan trying to stop the start, and when we shut down he immediately held his hand up and said he was responsible.....incidently all indications on the flight deck were completely normal nor was there any vibration felt at any time. The idea of using a chock was totally non standard and a similar incident happened a few years ago....so they never learn.