80. The fuel vent system keeps the pressure of the fuel tanks near the ambient pressure. Too large a pressure difference can cause damage to the wing structure.

1125、Close valve A when you get the same indications on gauges X ANDY

1124 、 CALTION:WHEN YOU REMOVE THE PROBES, DO NOT LET THEM TOUCH EACH OTHER.

1123、 Carefully put the valve assembly in its position and install the spacers and the bolts.

1122 、 CAP usually consist of two pages: one text page and one illustration page.

1121、calculate the quantity of fuel necessary for the flight.

1120、Calculate the pressure with the applicable formula

1119、Braking system is used to decrease run-down time or stop propeller rotation during engine power-off conditions.

1118、Bleed the system before you disconnect the components

1117 、 Because airplanes are intended to have long lives, their flight safety must be assured.

1116、 Basic control and operation information describing how the airplane components are controlled and how they operate, including any special procedures, and limitations that apply.