Taxiing

GATE DEPARTURE

PUSHBACK

Pushback is the preferred method of gate departure.

BEFORE MOVING

Complete the Before Start checklist.

WHEN READY TO MOVE

Verify ground interconnect is closed and hydraulic system A is not pressurized. The captain confirms, that all doors are closed, brake pressure is normal, turns on the beacon lights and releases the brakes.

POWERBACK

Powerback may be used as authorized in the Operations Specifications provided:

• All enginesare started.

• All thrust reversers and all reverse thrust indicator lights are operating.

• There is no moderate or heavy precipitation.

Leave the air conditioning packs off until powerback is completed

To start powerback, place all reverse levers to reverse idle position with brakes set. When all engines indicate reverse thrust and release brakes.

Use reverse thrust up to 1.4 EPR. Control speed with the reverse levers, and do not apply brakes while the aircraft is powering back.Control excessive rearward speed by returning one engine to forward thrust.

PRIOR TO TAXI

Complete the AFTER START checklist.

LEAVING RAMP

If possible, keep nosewheel centered until aircraft starts rolling. Normally, gate departure can be accomplished by initially rolling straight forward and then initiating turn out.

Use equal thrust on all operating engines to start aircraft rolling. Keep engine thrust as low as possible when maneuvering in the ramp area. Maximum thrust is 1.1 EPR / 45% N1.

Make large radius turns whenever possible. For sharp turns, use minimum speed at start of turn to avoid nose tire scrubbing.

If traction is reduced by ice, compacted snow, or standing water on ramps or taxiways, use minimum taxi speed.

ANTI-ICING

If all engines are operating, reverse idle thrust may be used on the number 2 engine to assist in maintaining normal taxi speed.

When using reverse idle thrust to control taxi speed, smoothly move number 2 engine reverse lever to reverse idle.

FUEL HEAT

When fuel temperature is 0C or below, turn fuel heators on for one minute. Oil temperature increases while fuel is being heated. Turn heaters off and check valve in-transit lights to indicate valves closed before setting takeoff thrust.

PRESSURIZATION

Place FLT/GRD switch to FLT. After approximately 12 seconds observe outflow valve moves toward closed, cabin rate of climb deflects down monetarily, cabin altitude descends to approximately 200 feet below field elevation, and differential pressure increase to approximately .1 psi.