Let's now continue to program the rest of our flight information into the FMC. The APU has now taken over the job of power source from the battery, which we must leave switched on! As soon as AVAIL is displayed on the APU GEN witches, set them to ON (once again this will take a while). The switch will rotate back to ON and the APU will be started (this will take several seconds). Rotate the APU switch to START (click twice). Wing anti-ice should only be enabled after takeoff. Nacelle anti-ice should only be enabled after the engines are started. This will distribute fuel between the main fuel tanks (there are four of them on a 747).ĭisable NACELLE and WING ANTI-ICE. Set all fuel XFEED (crossfeed) switches to ON. Press the CLR button in the lower right of the FMC to clear any messages that may be currently displayed. The POS INIT page of the FMC allows you to determine and input your aircraft's current position. Ensure that the FMC is reporting accurate information about your current aircraft. Click the FMC button located at LSK (Line Select Key) 1L (this means the first button down on the left). We now move over to the FMC/ CDU (you will find three of those at the pedestal, pick the one that is the easiest to control from your position).
Meaning flaps are UP, gear handle in DOWN position. Logo and wing lights are optional, but prefered at night.Įnsure that all flight controls are centered and/or in their idle positions.
So turn ON the NAV LIGHTS, which can be found in the lower right part of the overhead panel. It can take a couple of seconds till the EXT PWR switches to ON.Īny time the aircraft is powered, nav lights should be enabled, to alert the groundcrew that the aircraft is powered and under control. External power is only available when you are on the ground and the parking brake is set. You will find the switches on the electrical panel on the overhead. Turn ON EXT PWR 1 and, if available, EXT PWR 2. Using external power is "cheap", as it does not require the aircraft to burn any fuel. Without any engine or APU running, the best way of obtaining longterm power is through external power sources, usually provided by the groundstaff at the airport. It is perfectly normal for the OFF lights to be lit at thi time, it just indicates that the generators are not being used at the moment (engines are off), but that they will be used once the engines are started. Set the GEN CONT switches to ON, to allow our engines' generators to provide power to the systems. This will allow power to flow propertly through all electrical systems. The battery should remain on at all time, as it acts as a backup for some vital avionics, so let us close it after setting it to ON. You will notice that it has a protective cover, click it to open/close it. With the battery alone, we will be provided with basic power for about 30 minutes, which should be enough for us to set up a better power source. As we will need some extra time to get confident with the flightdeck, we will use the battery. In order to start our preflight checks, we need some power.
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