# Before Takeoff

<table data-header-hidden data-full-width="true"><thead><tr><th width="695"></th><th></th></tr></thead><tbody><tr><td><strong>01 - ICING CONSIDERATIONS</strong></td><td><strong>CHECKED</strong></td></tr><tr><td><em>Within 5 minutes of takeoff, evaluate anti-ice requirements. Conduct a Pretakeoff Check or Pretakeoff Contamination Check as needed.</em><br><br><em>Conduct engine runups as required for use of engine anti-ice prior to takeoff.</em></td><td></td></tr><tr><td><strong>02 -</strong> <strong>IGNITION</strong></td><td><strong>ON</strong></td></tr><tr><td><em>Use continuous ignition for takeoff, and if there is standing water, slush, or wet snow on the runway, place the engine start control switches to FLIGHT.</em></td><td></td></tr><tr><td><strong>03 - ANTI-SKID</strong></td><td><strong>ON &#x26; CHECKED</strong></td></tr><tr><td><strong>04 - STROBE LIGHTS</strong></td><td><strong>ON</strong></td></tr><tr><td><strong>05 - TRANSPONDER</strong></td><td><strong>ON</strong></td></tr><tr><td><strong>06 - APU LIGHT</strong></td><td><strong>OUT</strong></td></tr><tr><td><strong>07 - BOOST PUMPS &#x26; CROSSFEED VALVES</strong></td><td><strong>ON &#x26; CHECKED</strong></td></tr><tr><td><em>Check all boost pumps on.</em><br><br><em>Close number 1 and 3 crossfeed valves and open number 2 crossfeed valve.</em></td><td></td></tr><tr><td><strong>08 - OIL COOLER</strong></td><td><strong>CHECKED</strong></td></tr><tr><td><em>Place switch to GROUND OFF at beginning of takeoff roll. Switch trips back to NORMAL after liftoff.</em><br><br><em>Do not leave switch in ground off position for mor than 30 seconds if takeoff is delayed or rejected.</em></td><td></td></tr><tr><td><strong>09 - AIR CONDITIONING PANEL</strong></td><td><strong>CHECKED &#x26; SET</strong></td></tr><tr><td><em>Place the number 2 bleed switches to CLOSE and observe a decrease in manifold pressure.</em><br><em>Place pack switches to OPEN one at a time and check electrical power meters for each fan starting load.</em><br><em>Place pressure indicator selector to PACK and note normal pressures.</em><br><em>Return the engine bleed valves to the takeoff configuration in sufficient time to allow the APU to run for approximately two minutes with no air load before shutdown.</em></td><td></td></tr><tr><td><strong>10 - AUTO PACK TRIP</strong></td><td><strong>___</strong></td></tr><tr><td><em>The auto pack trip control switch must be in NORMAL for takeoff when the actual aircraft weight is within 2,900 pounds of the maximum takeoff weight.</em><br><br><em>As the thrust of all engines is increased above approximately 1.50 EPR, check the green ARMED light on.</em></td><td></td></tr></tbody></table>


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