Again, as I expected before the flight, the weak nose retract oleo strut could not withstand the vibrations of the engine and broke off it's trunion hole during the flight.
There were no major problems with the fuselage due to the narrow belly landing, but it seems that some repairs and replacement of the retract systm are necessary.
The problems so far with Phoenix Pilatus PC-21 Mk-II are
01. The durability of the fuselage is insufficient, and additional
FRP(Composite)work is required to increase the durabillity.
02. A complete replacement of the existing retract system is required to
the other products (ex. JP Hobby or Robart something)
03. The angle of attack of the main wing, which is a chronic problem of
the Phoenix Products, is different and needs to be corrected.
The above 3 things are modifications and supplements of the Phoenix Pilatus PC-21 Mk-II that I have flown so far.