nor are the other two leased examples even on the horizon
The first aircraft has returned to Portugal for heavy maintenance as previously reported. The second is in Denmark being refitted and (last heard) awaiting a new engine, delivery of which has been substantially delayed.
The monumental moment will be the moment of the Tris's last flight, which is to be suitably commemorated regardless of what precedes or follows - we just don't have a date yet because of endless delays that are mostly beyond Aurigny's control -
Blame the management for not choosing the Twin Otter if you wish (and consider the number of days lost in Ald to crosswinds compared), but I think it's a little harder to pin the rest of the problems on them. Meanwhile Alderney now generally has a good service (espc compared to last winter) - so in spite of expectations the delays aren't really having a knock-on impact anymore.