Air Line Pilots Association, International EMB 145 Oral Questions Overhead “C” Select “Slide Show” Use the space bar on your computer to advance the presentation and challenge your systems knowledge This is a tool to assist in study of EMB145 systems, but does not constitute a replacement for reading the actual AOM VOL 1 or 2, nor does it contain ALL information contained therein. The actual AOM Volumes are subject to changes and updates.

Air Line Pilots Association, International What is the first flight of the day test for the FIRE system?

Air Line Pilots Association, International Press the FIRE TEST button and observe: FIRE handle illumination FIRE bell – aural warning BAGG EXTG button illumination Master WARNING/CAUTION lights flashing EICAS Messages: APU FIRE ENG 1(2) FIRE BAGG SMOKE APU FIRE DET FAIL ENG 1(2) FIRE DET FAIL

Air Line Pilots Association, International What would happen to the APU if the TEST button on the FIRE panel was pressed for more than 10 seconds?

Air Line Pilots Association, International The APU would shut down.

Air Line Pilots Association, International How many fire extinguishing bottles protect the cargo compartment?

Air Line Pilots Association, International 2 -- The High Rate bottle and the Metered Discharge bottle.

Air Line Pilots Association, International How many minutes will the cargo compartment fire extinguisher bottles distribute extinguishing agent?

Air Line Pilots Association, International 50 minutes.

Air Line Pilots Association, International What happens when the BAGG EXTG button is pressed?

Air Line Pilots Association, International The cargo compartment fire extinguishing bottles are discharged and the baggage compartment fans are de- energized.

Air Line Pilots Association, International What type of APU is installed on the EMB?

Air Line Pilots Association, International Sunstrand C-14.

Air Line Pilots Association, International How many different ways can the APU be started?

Air Line Pilots Association, International - GPU - Battery #2 - Battery #2 and generators

Air Line Pilots Association, International What controls the APU?

Air Line Pilots Association, International The APU FADEC.

Air Line Pilots Association, International What does battery #1 provide during an APU start?

Air Line Pilots Association, International It provides stable power to sensitive electrical equipment.

Air Line Pilots Association, International If an APU fire is detected in flight, will the APU shutdown?

Air Line Pilots Association, International No.

Air Line Pilots Association, International What would cause the APU to shut down at any time?

Air Line Pilots Association, International - FADEC Failure - Overspeed - Underspeed - Loss of speed data - Start abnormality - External short

Air Line Pilots Association, International Additionally, what will cause the APU to shut down on the ground? (30 seconds after landing)

Air Line Pilots Association, International - High oil temperature - EGT overtemp - Loss of EGT - Low oil pressure - Oil pressure switch short - Fire

Air Line Pilots Association, International How do you normally shut-down the APU?

Air Line Pilots Association, International By pressing the STOP button on the APU panel.

Air Line Pilots Association, International What happens when the APU STOP button is pressed?

Air Line Pilots Association, International -STOP signal sent to APU FADEC -APU fuel solenoid valve closes

Air Line Pilots Association, International What happens when the guarded FUEL SHUTOFF button on the APU panel is pressed?

Air Line Pilots Association, International -STOP signal sent to APU FADEC -APU fuel solenoid valve closes -APU FUEL SOV closes

Air Line Pilots Association, International What happens when the APU MASTER knob is selected to the ON position?

Air Line Pilots Association, International - APU FADEC energized - APU fuel solenoid valve opens - APU FUEL SOV opens - APU self test begins - APU indications and alarms are enabled

Air Line Pilots Association, International What happens when the APU MASTER knob is selected to the OFF position?

Air Line Pilots Association, International - APU FADEC de-energized - APU fuel solenoid valve closes - APU FUEL SOV closes - APU indications and alarms are disabled

Air Line Pilots Association, International What happens when the APU EXTG button is pressed on the FIRE panel?

Air Line Pilots Association, International - APU FADEC de-energized - APU fuel solenoid valve closes - APU FUEL SOV closes - APU fire bottle discharged

Air Line Pilots Association, International How long can the APU be left running unattended?

Air Line Pilots Association, International 30 minutes. NOTE: The battery switches should be placed in the OFF position. This prevents battery discharge in the event the GPU should fail.

Air Line Pilots Association, International What type of engines are installed on the EMB 145?

Air Line Pilots Association, International Rolls-Royce (Allison) AE3007-A1.

Air Line Pilots Association, International How much thrust does each engine produce?

Air Line Pilots Association, International Approximately 7,500 pounds of thrust (at sea level) up to 30 o C.

Air Line Pilots Association, International Describe the basic design of the Allison AE3007-A1.

Air Line Pilots Association, International Two Spool, Axial Flow, High Bypass Turbofan High Pressure Spool: -14 stage compressor -2 stage turbine Low Pressure Spool: -1 high bypass fan section -3 stage turbine

Air Line Pilots Association, International What is Compressor Variable Geometry?

Air Line Pilots Association, International Inlet guide vanes are digitally controlled to change position and maximize compressor efficiency.

Air Line Pilots Association, International What moves the inlet guide vanes?

Air Line Pilots Association, International High pressure fuel, commanded by the FADEC.

Air Line Pilots Association, International How many compressor stages are movable?

Air Line Pilots Association, International The first 5 stages.

Air Line Pilots Association, International What components are driven by the engine accessory gearbox?

Air Line Pilots Association, International - Hydraulic Pump - Electrical Generators (2) - Air Turbine Starter (ATS) - Primary Magnetic Alternator (PMA) - Oil Pump - Fuel Pump Metering Unit (FPMU)

Air Line Pilots Association, International What does the Permanent Magnet Alternator (PMA) power?

Air Line Pilots Association, International Ignition and FADECs.

Air Line Pilots Association, International What happens when the IGNITION knob is selected to AUTO?

Air Line Pilots Association, International - Ignition for air 10% N2 - Ignition for ground 14% N2 - Auto 53% N2

Air Line Pilots Association, International When would you select the IGNITION switches to ON?

Air Line Pilots Association, International - First Start of the Day - External Air Start - Crossbleed Start - Cold Start - Taxi on contaminated surface in icing - Takeoff on contaminated runway - Moderate turbulence - Heavy precipitation

Air Line Pilots Association, International What is the maximum oil capacity of the engine?

Air Line Pilots Association, International 12 quarts.

Air Line Pilots Association, International What is the minimum oil quantity for dispatch?

Air Line Pilots Association, International - 8 quarts prior to engine start - 7 quarts after engine start

Air Line Pilots Association, International What happens if the IGNITION knob is selected to OFF on the ground?

Air Line Pilots Association, International - Ignition is disabled (when the engine is running) - Ignition and fuel are disabled (during a motoring run)

Air Line Pilots Association, International What happens if the IGNITION knob is selected to OFF in flight?

Air Line Pilots Association, International Auto re-light is disabled.

Air Line Pilots Association, International What does the FADEC provide?

Air Line Pilots Association, International Fully Authority Digital Engine Control (FADEC): - Schedules fuel and air metering, - Calculates engine thrust - Controls compressor variable geometry - Monitors engine performance

Air Line Pilots Association, International Where does the FADEC get its power?

Air Line Pilots Association, International - Below 50% N2: From the Essential Bus - Above 50% N2: Permanent Magnet Alternator (PMA)

Air Line Pilots Association, International When do the FADECs automatically alternate?

Air Line Pilots Association, International At the beginning of an engine start cycle.

Air Line Pilots Association, International When do we manually alternate the FADECs?

Air Line Pilots Association, International After each engine start.

Air Line Pilots Association, International What happens when you select RESET on the FADEC knob?

Air Line Pilots Association, International RESET clears any recorded faults in the FADEC.

Air Line Pilots Association, International When will the FADEC NOT protect the engine from excessive ITT?

Air Line Pilots Association, International During engine start.

Air Line Pilots Association, International What are the possible thrust modes available from the thrust management system?

Air Line Pilots Association, International T/O-1 or T/O- Thrust levers past thrust set; OR - Button on control pedestal ALT T/O-1- Takeoff data setting procedure CON - Button on control pedestal CLB- Button on control pedestal CRZ- Button on control pedestal

Air Line Pilots Association, International When will the FADEC command T/O-1 thrust?

Air Line Pilots Association, International - Thrust lever moved beyond the thrust set position - Gear down and locked below 15,000 feet - T/O button is pressed (not an AOM procedure) - Takeoff Data Set procedure (on the ground) - FADEC power interruption - Disagreement on thrust between engines

Air Line Pilots Association, International What is ATTCS?

Air Line Pilots Association, International Automatic Takeoff Thrust Control System. If an engine fails during takeoff the ATTCS automatically resets thrust on the good engine to maximum takeoff thrust.

Air Line Pilots Association, International When is the ATTCS considered to be “capable”?

Air Line Pilots Association, International Embraer 145: - ALT T/O – 1 is selected Embraer 135/140: - T/O is selected - ALT T/O – 1 is selected

Air Line Pilots Association, International What conditions must be met for the ATTCS to arm?

Air Line Pilots Association, International - Aircraft must be on the ground; and - Thrust lever must be advanced; and - Engine must be ATTCS capable

Air Line Pilots Association, International How is ATTCS disarmed?

Air Line Pilots Association, International - Thrust levers retarded (rejected takeoff) - ATTCS is activated (engine failure on takeoff) - ATTCS capable mode is deselected (climb flow)

Air Line Pilots Association, International How is ATTCS activated?

Air Line Pilots Association, International - FADEC receives an engine inoperative signal; or - Opposite engine thrust lever is retarded; or - Opposite engine does not arm within two seconds

Air Line Pilots Association, International When should T/O - 1 thrust be used for takeoff?

Air Line Pilots Association, International - Windshear - ATTCS inoperative - Runway is contaminated - Performance requires it - Discretion of the Captain

Air Line Pilots Association, International What would happen if you forgot to input the take-off data?

Air Line Pilots Association, International An ENG NO DATA advisory message would present on the EICAS.

Air Line Pilots Association, International Describe the events which take place at various N 2 indications when the START/STOP selector is set to the START position.

Air Line Pilots Association, International 10% N 2 - PMA powers ignition 14% N 2 - FADEC enables ignition 28% N 2 - FADEC enables fuel flow % N 2 - Possible hung start range 50% N 2 - The PMA powers the FADEC 57% N 2 - FADEC declares a good start. - Start control valve closes. - Ignition off - Generators online 60-64% N 2 - Ground Idle (varies with temp)

Air Line Pilots Association, International What happens if the START/STOP selector knob is held in the START position for more than 3 seconds?

Air Line Pilots Association, International The switch would be disabled.

Air Line Pilots Association, International How would you fix a disabled START/STOP Selector?

Air Line Pilots Association, International Reset the FADEC.

Air Line Pilots Association, International In flight, if you set the START/STOP selector to the STOP position would the engine shut down?

Air Line Pilots Association, International Only if the thrust lever was in the IDLE position.

Air Line Pilots Association, International At what N 1 speed will the engine shut down?

Air Line Pilots Association, International 100% N 1

Air Line Pilots Association, International At what N 2 speed will the engine shut down?

Air Line Pilots Association, International 102.5% N 2

Air Line Pilots Association, International When will you want to select Reference Anti-Ice to ON?

Air Line Pilots Association, International When OAT is 10 ⁰ C or less and icing conditions are anticipated anywhere from the ground to 1500 feet.

Air Line Pilots Association, International What temperature should be used to set the REF TO temperuture?

Air Line Pilots Association, International ATIS or indicated SAT.

Air Line Pilots Association, International How does the engine tip cone keep from icing?

Air Line Pilots Association, International A harmonic rubber nosecone tip.

Air Line Pilots Association, International What would happen if the thrust levers were set in reverse in flight?

Air Line Pilots Association, International The engines would revert to flight idle thrust.

Air Line Pilots Association, International How are the thrust reversers locked into position?

Air Line Pilots Association, International Mechanically.

Air Line Pilots Association, International What kind of thrust reverser locks are installed in each engine?

Air Line Pilots Association, International Primary and Secondary Locks: - Hydraulic Third Lock: - Electric