last couple days flew 6-7 times with my PC21 and K100TP , every flight one pisco connector broken, first the one close to turbine, and two times on below gearbox and at the end white Teflon tube broken, I really don't know if I m the only unlucky one with turbo props ….. two k100tp turbines and pisco connectors broken same , Kingtech dealer send me 5 spare of those changed and now they look ok.

and at the end I found that same time switch off turbine need to close manual fuel valve inside from plane too. this way hot oil inside gearbox not returning back and not burn and broke that white Teflon tube, besides transparent tube I bought doing better than one came with turbine .

I believe changing those pisco plastic connectors into festo plastic or metal same as jetcat will be great.

all the bests and good luck with turboprops...