It was created at Stans in Switzerland and registered as HB-FHO to Pilatus Flugzeugwerk A.B on 19-08-1980 and used as a demonstrator [I am sure you will all remember seeing it at the 1980 Farnborough Air Show with its red underwing fuel tanks] until it was cancelled on 22-01-1982. This was the day it arrived at Christchurch from Lord Howe Island. It entered the NZ register on 26-01-1982
Below are three photographs taken at Mount Cook in December of 1982.
Note the "Swiss Cross" still faintly visible on the tail, partly covered by the smallish Mt Cook Lilly.
(It is off course not a lilly but the Ranunculus lyalli - the worlds largest buttercup).
Some four years later it was upgraded to PC-6 B2-H4 standard - first flying as such on 29-11-1986.
Below is a shot taken on 14-09-1989 showing the vertical tail now all red with a larger "Lilly", and with white wing tips, plus fleet number 34, and red end plates on the horizontal tailplane.
Below are three views of ZK-MCK on the Tasman Glacier on 13-12-1996.
With the downturn in tourist numbers this aircraft went over the hill in about early 2011 and was used for a while from the late Alex Miller's Waiho airstrip at Franz Josef in the parachute dropping role. It was sold to Skydive Franz Josef Ltd on 30-04-2012 and now operates out of the Franz Josef airfield.
It has lost all of its THL/Aoraki Mount Cook markings - except for the red band around the outer wings and the white wing tips. Is it my imagination - or is the nose section and tailplane now more orange than red ?