Pop-off valve check - how is it done?
I am doing my first 100 hrs maintenace actions on my 915iS, the line maintenance manual refers to
"Check the pop-off valve for 700 mbar / 10.15 PSI low-pressure and its full opening."
Further reference is heavy maintenance manual chapter 73-10-00 however there is no further info on how to do the test.
Could anybody give any clues how to make this maintenance check ?