Think GeeRams comment of 24th is quite relavant, some of TFC aircraft have been signed off by the CAA for years - then very shortly after a 'dispute' suddenly all these same aircraft are all grounded due to "paperwork" issues. Hmmmmm.
Ive seen many times over the years whilst working in large organisations that one can be never surprised how petty\vindictive people can be and are for the most part generally supported by their Superiors untill it reaches a point where the Superiors are beging to feel embarrased themselves - only then does it tend to get resolved.
Again I wish TFC all the very best in getting this resolved, it will be interesting to see if the same CAA methodology is applied to other Vintage aircraft organisations eg Shuttleworth, ARC etc