I have been flying on atr since 99 , 5500 hrs.PEC only.Generally speaking a good machine,but, any improvement is welcome,as regard SOP.However, any operator may modify its sop, because of independent reasons, I mean, a northern operator will not have the same normal procedure like an african or southasian one.NowI will give you some examples of modifications or differences:
1.you start time when pressing start pushbutton, or after 10% and CL in feather....
2.after landing, when you are taxiing to stand,normally #1 engine is shutdown.So,after 1 min cooling time CL feather.You wait 20 or 30 sec , then fuel shutoff.#1 electrical fuelpump off, or after NH is bellow 10% off.....
3.when you are performing power back you switch on taxi &to lights or not.....
and so on...
Best rgds!