Boeing 777-200 Preflight Part 4 | Flight Deck Overhead Panel Checks and Setup

Sharing buttons:

I will set our position on the FMC (flight management computer) using the data from our

GPS (global positioning system). Select position initialization and the prompt displays indicating

position data is required in those boxes. Move to the previous page to display the GPS

position. By using the LSK (line select key) I am able to select the GPS data and move

it to the clipboard at the bottom of the screen. Go back to position initialization page and

press the LSK at the position input and the GPS data from the bottom of the page is moved

into position. Now our navigation systems are aligned and know their position in the

world. We will look at the overhead panel and make sure it is setup for the flight.

This is the air conditioning panel. Equipment cooling, recirculation fans, trim air valves,

temperature selectors for cabin and flight deck. It is set a bit cool right now. These

are the pack switches that turn the packs on and off. These are the trim air switches.

Bleed isolation switches. When we are in normal flight you feed from the right engine to the

right pack and trim and from the left engine to the left pack and trim. If a problem occurs

and causes one side to loose pneumatic pressure then the isolation valves will automatically

open to allow pneumatic pressure from the operating engine to supply air to both the

left and right systems. This is the pressurization panel. Outflow valve switches. Manual landing

altitude select knob if required. Right windshield wiper. The windshield is too dirty to turn

it on for demonstration. These are runway lights, red beacon lights for belly and crown,

navigation lights on the wing tips red, green, and white. Logo lights that shine from the

top of the horizontal stabilizer to the vertical to illuminate the tail. These are wing lights

that shine on the engine inlets. Strobes, runway turnoff, taxi, landing lights. Flight

deck instrument lights dimmers. Anti-ice panel normally operated in auto position. This microphone

is for recording voice and sounds in the flight deck onto the Cockpit Voice Recorder to be

used in the event of an accident investigation. It is on a loop and records that last few

minutes. Passenger signs put them in auto then at specific configurations like gear

down and flaps down they will illuminate the fasten seatbelt signs. Fuel panel. We are

supplying fuel from the left main using the forward fuel pump to the APU. I am going to

display the fuel system status on the monitor. The green box is the fuel pump and the green line indicates where the fuel

is flowing to. When we have fuel in the center tank it will feed first because the center

pumps put out a high pressure than the main tank pumps. This is done for weight and balance.

Fuel jettison panel. Lift these two protected switches to activate the fuel dump through the fuel dump nozzles that I pointed out earlier

in the preflight on the outboard trailing edge of each wing. This is the engine start

panel. Turn this switch to the start position to begin the engine start sequence. If we

are in bad weather they will put the switch into continuous so the ignitors fire and keep

the engine from having a flameout. This is the cargo fire control panel. Select the target

zone then lift up the cover and press the switch to discharge the fire bottle into that

area. Flight information data and pre-recorded passenger briefings. This panel is unique

to only this airplane. We have an interior door monitoring system. Electrical controls

for our passenger inflight entertainment and passenger emergency oxygen. Service interphone

switch for maintenance functions. Ram air turbine. Lift the cover and press the button

and the ram air turbine will drop out and begin to generate electricity and hydraulic

power from the air flow passed using a windmill type of head. Our hydraulic panel. on the

right engine we have one electric pump and one gear driven pump turned by the engine

gearbox. Center system we have two electric pumps and two pumps that are driven by pneumatic

pressure taken from the compressor section of each engine or APU. Left engine same as

the right. Our cabin smoke detection system. Has 14 zones. If smoke is detected then it

will display a warning and also indicate the reporting zone so we can go and check it out.

The ARIRU (air data inertial reference unit) part of our navigation system. Thrust asymmetry

computer. Electrical panel with main battery switch, APU on/off switch, APU generator switch,

bus tie switches, external power switches, backup generator switches. Left windshield

wiper switch.