The termination amount (CAA01/S70YG) depends on the
situation.
The lessor has not been entitled to plant or machinery
allowances on the asset because the lease is a long funding lease.
However
In that case the termination amount is the disposal value (see
CA23250)
that would have been brought to account by the lessor if the lessor
had been entitled to plant or machinery allowances and had claimed
all allowances available.
If there is no disposal event (and as the lease is a long
funding operating lease) the termination amount is the market value
of the asset immediately after the termination of the lease.