ATP QUESTIONS Flashcards
Min fuel required?
Trip + most distant alternate + 45 mins reserve + 2000lbs taxi
Take off alternate needs to be?
1 hour still air @ single engine speed
At or above CAT 1 minima
Engine bleed switches OFF light illuminates?
Engine not running Overheat Valve failed closed Eng Fire Switch has been pulled Switch pushed off
Engine bleed air valves auto close when?
During start Bleed source loss Over temperature Over pressure Duct leak Engine fire switch pulled Ground cart supplying air
APU bleed air available? What stops reverse flow?
22,000ft. Check valve.
How many Packs? Cool bleed air from?
2 identical packs
Cool air from: engines / APU / ground pneumatic cart.
If a pack controller fails
Shuts down automatically when fault detected.
Can automatically switch to other controller.
1 pack can supply the whole AC
Pack outlet air temp controlled by?
The zone requesting the coldest air
Loss of one trim air system effects?
Tries to maintain all zones at average temperature.
Flight deck may become uncomfortably warm.
Equipment and electronics compartment modes? How is it cooled?
2 modes: normal & override.
Uses cabin air drawn over equipment then heated air drawn to either forward outflow valve or cargo heat.
E & E override mode “EQUIP COOLING OVRD” displays when
Switch is off Both Supply fans fail Low airflow Smoke detected FWD CARGO FIRE ARM switch is armed
How is ice detected?
2 detector probes. When either Probe detects ice a SECOND time engine anti ice valves open automatically.
After “several” cycles the system commands the wing anti ice on
Wing anti ice works? Inhibited when?
Engine bleed air warms 3 mid wing slats.
Inhibited on ground and for 5 mins after take off
Wing anti ice isolation valves open automatically?
If a bleed source is unavailable
Bleed duct isolation has not occurred
Wing anti ice automatic operation?
WAI set to auto
Valves open when ice detected
IF ONE VALVE STUCK CLOSED THE OTHER WILL AUTOMATICALLY SHUT OFF.
Integrated drive generator IDG automatically powers?
Respective main bus if switched on
IDG DRIVE light illuminates when? Eicas message “ELEC GEN DRIVE L or R”
Low oil pressure (lower light only)
High drive temperature (higher & lower lights on)
IDG can be electrically disconnected from busses by?
Pushing GEN CTRL switch to off:
Opens generator breaker
De energises field
Selecting an external power source before eng shutdown
How many BUGs? When do they automatically power TRANSFER bus?
2 BUGS 1 per side.
1 generator fails & APU not available
Or
Either main bus fails
How many BUGs provide power
Only 1 at any time, enough to power BOTH transfer busses
PMGs are? And provide power to?
Permanent magnetic generators. DC generator permanently connected to back up generator drive shaft. Provide power to LRC flight controls
If PMGs not available backup power sources to DC flight control busses are?
Respective main DC busses
Hot battery bus (L & C only)
Individual batteries
RAT AUTO DEPLOYS
Loss of power to both AC transfer busses
Both engines fail and C system hydraulic pressure is low
Loss of pressure in all 3 hydraulic systems
APU auto starts?
Loss of power on both AC transfer busses
Backup AC electrical system automatically powers one or both transfer busses when?
Only one main generator available.
Power to 1 or both main AC busses lost.
Approach mode selected.
System automatically selected after start.
Back up AC electrical system transfers power
Without interruption & automatically powers selected systems
DC electrical system is the primary source of DC power and consists of? And powers?
4 TRUs (powered by AC transfer busses)
Powers: L & R Main DC bus
Capt Flt instrument bus
FO Flt instrument bus
Auto start system aborts for
Stall Hung start EGT fails to raise Hot start Air pressure insufficient Starter (duty cycle exceeded or failure)
On the ground AUTOSTART won’t attempt a second start for
Shaft failure
Air pressure insufficient
No N1
Duty cycle exceeded
If no AC power how does the APU get fuel
The DC fuel pump in the left main tank
Fwd left AC fuel pump provides fuel regardless of switch power. How?
Pump energises when APU start switch moved to start.
PRESS light out even with switch in OFF position.
When APU running will kick off external power and?
Secondary external power becomes AVLBE
Primary external powers right main bus.
APU powers left main bus
APU status display shows?
RPM EGT OIL PRESSURE Oil Temperature Oil quantity
APU Off selector
Closes APU BAI valve
Initiates normal shutdown
Resets auto shutdown logic
APU on selector
Opens APU fuel valve & inlet door
Activates AC or DC fuel pump
Powers the APU controller
APU fault light indicates
Fault or fire detected
APU shutdown due to above
Momentarily illuminates on self test
Cargo fire detection?
Fwd & aft each have one smoke detector Each divided into 3 zones 1 zone = an alert If one zone fails the others still work. Two smoke detector fans in each compartment move air around.
Pressing cargo fire ARM switches
Arms all 5 fire extinguishing bottles.
Arms selected compartment flow valve.
Turns off fans.
Commands packs to provide minimum airflow.
Pulling an engine fire handle? 3-2-1-o
Closes 3 valves: engine fuel Engine bleed air & hyrdraulic fluid Depowers 2: reverser isolation valve & depressurises hydraulic pump Arms 1: fire extinguisher O pens generator fields
Autopilot is only available in which mode?
Normal
In normal Mode what envelope protections do you have?
Works Autopilot on or off
Stall protection
Over speed protection
Bank angle protection
In normal Mode PFCs automatically compensate for:
Thrust changes
Configuration changes
Turbulence
Turns
Primary pitch trim control switches are inhibited when?
The autopilot is engaged.
Pitch trim does not move the control column.
Pitch trim moves what? On ground and in air?
On ground stabiliser is directly positioned.
In flight PFC moves stab trim.
Autoslats deploy? Armed?
Auto deploy to full when approaching stick shaker.
Armed when flaps 1-20 (full at 25/30)
Only available in primary mode.
Flap/slat load relief in primary mode?
Flaps only.
Auto retract to a position that matches speed
Will not extend beyond 5/15/20 until airspeed reduced
Fuel jettison nozzle switches when armed do?
Opens jettison nozzle valve
Opens both Center tank jettison isolation valves
When fuel jettisons TO REMAIN quantity
Main tank jettison pumps shut off.
Center Tank jettison valves close.
Standpipe at 11,500lbs in each main tank (23,000lbs MIN!)
Center hydraulics pumps are?
Primary electric
Demand air driven
Center demand hyrdraulic pumps cannot?
Operate simultaneously in ON
If both in AUTO both can operate to meet demand.
C1 demand pump is dedicated for?
Reserve brake system
C2 may be shed
LNAV CAPTURES
Min 50ft AGL
Within 2.5nm of course
Prior to engine start the EICAS displays what messages
5 HYD PRESS SYS L R C ENG SHUTDOWN FUEL PRESS ENG L R BRAKE SOURCE AUTO SPEEDBRAKE
The PFD & NDs primary source for air data and attitude is?
ADIRU
The descent path calculated by the FMC is based on?
Airspeed & Altitude constraints and the EOD (end of descent point)
First constraint on the descent based on?
Idle thrust Speed brakes retracted FMC cruise wind Wind entries on DES FORECAST target speed Anti ice if required
Airplane transitions out of approach mode ?
TOGA selected
The airplane lands
Flies beyond the last waypoint of the approach
Acceleration height what happens
VNAV commands VREF +80
Automatic change from TO thrust to CON thrust
If the RAT has been deployed
It cannot be stowed during flight
Can the RAT be deployed on the ground?
YES
How many air conditioning zones?
7 including F/D
Fuel imbalance white pointer displays
When main tank differs more than 1,000lb
