Cockpit Flow-Systems and Procedures Flashcards
What is the APU exhaust danger area
15 feet
How many PBEs are required for dispatch?
3, one for each fire extinguisher
How are the cockpit circuit breaker panels numbered?
CBP1 Behind Capt., CBP2 Bhind FO, CBP3 Capt side console, CBP4 FO side console, CBP5 Aft Equipment Bay
What test requires coordination betweent the Flight Attendant and Cockpit Crew during the interior inspectiong?
The testing of the lavatory smoke detector requires verificcation by a cockpit crewmember that the “SMOKE TOILET” EICAS message is displayed
What precaution must be taken before turning the NWS switch ON during the After Start Checklist?
Be sure that the towbar and/or chocks have been removed
If one of the STALL PTCT PUSHER switches is selected OFF will the stall pusher be operational?
No
How can the stick pusher be stopped?
By pressing and holding the AP/SP DISC switch on the pilot or copilot control wheel, or by selecting either of the STALL PTCT PUSHER switches OFF
May you depart with one of the STALL PTCT PUSHER switches off?
No
Can cross side NAV data be displayed on the PFD and MFD?
Yes, by rotating the NAV SOURCE knob on the DCP
How is TCAS information displayed on the MFD?
Press the TFC switch on the DCP
How is EGPWS terrain information displayed on the MFD?
Automatically if encountered, or overlaid if selected.
How is the EGPWS display removed from the MFD?
Pushing the TERR/WX pushbutton on the DCP
When the RA TEST button is presssed what should the radar altitude read?
50 feet
What is the function of the EICAS position on the Display Reversionary Panel?
To display ED2 information on the MFD
To what figure should the MDB be set with a DA of 512 feet on a precision approach?
520 feet. MDAs are in 10-foot increments
What are the primary sources of AC power?
Two engine and one APU driven generators
What is the normal source of DC power?
Five Transformer Rectifier Units (TRUs)
How many batteries are installed and where are they located?
Two nicad batteries located in the aft equipment bay
What are the individual components that make up an IDG (integrated rive generator)?
A 30-KVA AC generator and a constant speed drive
Under what conditiosn should an IDG automatically disconnent from the engine?
If an over-temperature or over-torque condition occurs
Under what conditions will a GCU remove itself from the bus system?
Over or under voltage, over or under frequency or generator or bus over current
One disconnected, can the IDG be reconnected in flight?
No
What does a green AVAIL light illuminated on the AC External switchlight indicate?
Power is connected and is of correct phase, voltage, and frequency
What is the function of the AC ESS XFER switchlight?
To manually transer, or indicate automatic transfer of the AC ESS Bus to AC Bus 2
When will power to the AC Essential Bus automatically switch from AC Bus 1 to AC Bus 2?
When AC Bus 1 is not powered
Is it normal for the AC Essential Bus switch/light to be illuminated while on battery power only, such as when at the gate prior to APU start?
Yes, the bus logic is working correctly, but because there is no AC power on AC Bus 1, the bus attempts to transfer to the alternate
In the above scenario is the AC Essential Bus being powered?
No
What does the FAIL light illuminated in an AUTO XFER switchlight along with the amber EICAS message AUTO XFER FAIL indicate?
A bus fault or generator overcurrent condition
What is the power source priority for AC Bus 1, AC Bus?
AC Bus 1 - IDG 1, APU, IDG 2, External power. AC Bus 2 - IDG 2, APU, IDG 1, External Power
How can AUTO XFER be manually inhibited?
By pushing the AUTO XFER switchlight on the electrical services panel
Which DC BUS TIE will not operatore automatically?
DC ESS TIE
What does a white closed light illumniated on the DC BUS TIE 1 or 2 switchlights indicate?
The correspondign DC Bus has been automatically tied to the Service TRU or another available source
What is the ExpressJet Policy on crewmembers resetting cockpit electrical Circuit Breakers in flight?
A circuit breaker must not be reset or cycled unless doing so is consistent with explicity procedures specified in the OM/QRH or unless, in the judgement of the PIC that resetting or cycling of the circuit breaker is necessary for the safe completion of the flight
What is the function of the DC Service switch?
It controls power to the DC Service Bus
If AC external power is to be utilized, explain how AC power is properly established?
If the green AVAIL light is illuminated, press the external AC switchlight to supply the electrical system
What areas are monitored by the fire and overheat protection system?
Engines, jetpipe, pylon, APU and main landing gear
What are the benefits of the dual detection loop system?
Redundancy and Dispatchability
How many Firex bottle are provided for engine fire extinguishing?
2 Halon bottles
How many Firex bottles are provided for APU fire extinguishing?
1 Halon bottle
When will APU fire extinguishing activate normally?
On the ground in the event of an APU fire
What does the FAIL position of the TEST toggle switch simulate?
A “false fire” condition
What are the aural and visual indications of a successful APU Fire Warning test prior to APU start?
Select FIRE DETECTION TEST swtich to WARN: Triple Chime, Master Warning, Fire bell sounds, L(R) ENG FIRE, APU FIRE, AND L(R) JETPIPE OVHT warngin messages appear (5), “JETPIPE OVERHEAT” aural warning sounds, FIRE PUSH and BOTTLE ARMED PUSH TO DISCH lights illuminate. Release switch, and ensure all test messages go out. Select APU BOTTLE toggle switch to TEST and hold. APU SQUIB 1(2) advisory messages appear. After 10 seconds both disappear and fire horn sounds. Release switch and APU SQUIB 1(2) advisory messages reappear and disappear after 5 seconds.
What powers the fuel system ejector pumps (transfer, scavenge, main)?
Motive Flow
What does selecting both of the fuel boost pump switch lights on cause?
Arms both boost pumps, and if a low fuel feed pressure is detected, both pumps turn on
How can fuel be manually transferred from the left wing tank to the right wing tank?
Normal crossflow is automatic, but manual crossflow is accomplishsed by selecting the XFLOW AUTO OVERRIDE to MAN, then selecting the wing you wish to sned fuel to (R XFLOW). Fuel can aslo be balanced using the GRAVITY XFLOW valve.
When is automatic fuel transfer initiated (wing tank to wing tank)?
When a 200 lb imbalance exists
How is fuel heated?
Engine oil to fuel heat exchangers
In flight, if low pressure is detected in the left engine feed line, which boost pump ON light will illuminate?
The boost pump detecting low pressure will activate itself, and thee cross-side boost pump
On the ground, if low pressure is detected in the left engine feed line, which boost pump ON light with illuminate?
Both, if selected ON.
How is fuel transferred from the center tank to the wing tanks?
Through motive flow (transfer ejectors)
Why are both fuel boost pumps selected off to single engine taxi?
To preven to fuel imbalance
An Amber FUEL IMBALANCE cauting message is displayyed when?
When the fuel imbalance reaches 800 lbs
Where is engine fuel feed temperature displayed?
On the FUEL synoptic page
Where is bulk fuel temperature dispalyed?
On the FUEL synoptic page
Can fuel be transferred from the center tank to the wing tanks with the engines shut down?
No, needs motive flow
Are the fuel check valves that are check during the first flgiht of the day checks depicted on the FUEL synoptic page?
No
What does 10th stage bleed air supply?
Engine starting, air conditioning, avionics cooling and pressurization
What does 14th stage bleed air supply?
Wing and cowl anti-ice systems and thrust reversers
Describe the function of the TEST position of the DUCT MONITOR SELECTOR switch?
Simulates an overheat in both the 10th and 14th stage manifolds and the wing anti-ice duct
Describe the function of the LOOP A/B posittions?
Test the individual loops of the 10th stage leak detection system for shorts or failure
What does a red DUCT FAIL in the 10th or 14th stage switchlight indicate?
A leak (duct failure) in the associated duct section
What does the amber FAIL light in the LCV switchlight indicate?
The APU LCV is stuck in the open position when commanded closed by the interlock protection or pilot
Will the APU LCV open when the left 10th stage bleed switchlight is OPEN?
No
Will the APU LCV open if the right 10th stage bleed switch light is pressed OPEN with the ISOL valve CLOSED?
Yes
What prevents backflow of high pressure bleed air from the manifold?
A check valve and APU LCV interloock (switch position logic)
What is the primary function of the APU?
To provide AC electrical power
What is the secondary function of the APU?
To provide pneumatic power to the 10th stage manifold system
What DC voltage is required to start the APU from battery power?
22 volts
How is the APU feal feed SOV opened?
When the APU PWR FUEL switchlight is pressed in (on) and BITE test is completed
Under what conditions will the APU SOV
Automatically with a fire detected and manually when either PWR FUEL or APU FIRE PUSH switch is pressed
What does the amber PUMP FAIL light illuminating in the APU PWR FUEL switchlight indicate?
Crossflow/APU pump has failed
What does the white START light illuminating in the APU PWR FUEL switchlight indicate?
APU starter motor is engaged
What does the green AVAIL light illuminating in the APU PWR FUEL switchlight indicate?
APU is available for bleed air extraction
What indications are you looking for when the START/STOP switch is pressed for APU start?
Amber START light in switch illuminates, APU START status message appears, and at 50% RPM, START light and status message go out
What 4 indications are you looking for when the APU PWR FUEL switch is pushed?
APU IN BITE status message, APU SOV OPEN status message, APU gauges appear and APU door opens