573 - DHC-6-300 ex-N573SA
Since follow up comments below can be easy to miss, I'm pleased to say that we have located the above aircraft questioned in the "Information Required" entry on 28-Jun-2012. The aircraft, which was cancelled to Papua New Guinea (P2-) in November 2010 is currently hangared in Cairns, QLD at Hevilift, undergoing a rebuild which is expected to be completed by November 2012. Thanks to Robert for the update.
851 - DHC-6-400 HB-LPY Zimex Aviation, Glattbrugg
Catching up on the delivery routing --- 30-Jun-2012 flew Iqaluit, NU (CYFB) to Nuuk, Greenland (BGGH), Kulusuk, Greenland (BGGK) and then Akureyri, Iceland (BIAR); 01-Jul-2012 from Akureyri, Iceland (BIAY) to Wick, Scotland (EGPC), today 02-Jul-2012 it flew down to Farnborough (EGLF). Given the destination, and date I'd expect that it will be Viking's display aircraft at the upcoming Farnborough Air Show.