Comparing ranges to see if duplicate values occur

Hi guys,

I've attached file. I've two sheets, each with panels from new and old aicraft type. In the new panels there are values such as '151EZ' that is not in the old panels sheet.

I need a list of all the new panels and was wondering if there is a quicker way of doing this as there are 950 old panels to check.

Regards,

FP