>>1867584>how to start a 737exchange the bleed air valve to the left waste gate, the left waste gate only is capable of spinning the N1/N2 due to the presence of the high-pressure override switch, which controls the flow of high-pressure air to the bleed air waste gate valve override (figure 3a). due to the flow of gravity the AD/AHARS will calibrate itself automatically once you are parked in the designated area.
