Build9A
Well Known Member
My DAR sent me his inspection checklist and one item says " fuel gauge each tank has been calibrated and calibration is in records showing unusable fuel". What experience have others had with this issue? How did you calculate unusable fuel? I read that some have completely run the tanks dry during the flight test. I'm not sure I want to do it that way. Also, the DAR appears to want it before 1st flight. Any comments would be appreaciated. thanks, jack