Our last revision of the QRH was in Sep 2010. The Elevator Tab Vibrations [Pg 9.6] Checklist was introduced as part of that revision.
I also have a copy of an older version of the QRH [Yellow pages] dated Sep 2003. In it there is a Memory Item checklist called Elevator Tab Limit Cycle Oscillation [Pg 9.3]
The contents of the two are very similar except that the Elevator Tab Limit Cycle Oscillation checklist has a speed limit of 270 KIAS.
Hope this helps