zalt,
One of the (many) reasons the Bristow 212s went was that in line with NCAA regulations they had reached (and in some cases passed) their sell by date. So they were sold. Simple as that. Of course there was a business reason too, one that many of the BHNL guys didn't agree with. The revenue gained made the 2006 EOY figures look good.
The 212s were perfect ad hoc machines, not to mention "spare" airframes in the event of unserviceability etc. Their departure has left BHNL without a single pool aircraft, so clients are being disappointed with long term downtime, mainly due to an appalling Supply Chain system that is "massaged" by their SCMs up the line so as to make things look hunky dory to the powers that be. But Hey, it's the same all over, right ??
So I can't see this ACN 212 being an ex BHNL machine.
Cheers,
NEO