Radman,
This has been a struggle with the manufacturer as well.
With the introduction of the T2(D2) and the phasing out of the BK117 EASA and AHD have looked a little closer at the whole thing and came up with the result that they wanted 145(BK117 C2, C2e, D2) in the same pot.
I think you might agree that what they are trying to preclude is BK117 covering the D2 as it may be stretching the point.
EASA Draft OEB Report
here.
The problem is when you want to convert an ICAO licence and type rating you need 350 on type.
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