Overhead Panel Overhead Panel (Pictorial) Flashcards
Electrical Power Panel - What does the DC service switch power
Electrical Power Panel - What does the DC service switch power
Connects DC service to the APU battery direct bus
- Lights (NAV, beacon, service, boarding, toilet and galley dome)
- Boarding announcement
- Cabin lighting, upward and downward
- Service Bus feed
- Power sensing (Service Bus and TRU)
- Chart holder
- Water and waste control
Electrical Power Panel - What lights will illuminate with the Battery Master on? (No AC power established)
Electrical Power Panel - What lights will illuminate with the Battery Master on? (No AC power established)
- The AC ESS XFER switch light
- The INOP portion of L and R boost pump switch lights
- The fault portion of the PRESS CONT switch light
- The OFF portion of the L and R PACK switch lights
- MACH TRIM switch light ED1 and ED2 Screens on ISI Backup RTU
Electrical Power Panel - Regarding the AC switch light, what does the illumination of the AVAIL portion indicate
Electrical Power Panel - Regarding the AC switch light, what does the illumination of the AVAIL portion indicate
The system has the correct voltage, frequency and phase
Electrical Power Panel - Regarding the IDG guarded switch light, what does the illumination of the FAULT portion indicate? DISC portion
Electrical Power Panel - Regarding the IDG guarded switch light, what does the illumination of the FAULT portion indicate? DISC portion
- Associated IDG has has either low oil psi, or high oil temp (HOT LOP)
- The DISC portion indicates that the associated IDG has been disconnected
Electrical Power Panel - What does the illumination of the AC ESS XFER switch light indicate
Electrical Power Panel - What does the illumination of the AC ESS XFER switch light indicate
AC BUS 1 is not powering the AC ESS BUS
Electrical Power Panel - When should a generator be reset
Electrical Power Panel - When should a generator be reset
When directed by the QRH (Example QRH ELEC 12)
Electrical Power Panel - Regarding the AUTO XFER switch light, what does the illumination of the FAIL portion indicate
Electrical Power Panel - Regarding the AUTO XFER switch light, what does the illumination of the FAIL portion indicate
- The associated GCU (Generator control unit) has detected a BUS fault or generator over-current
- Affected generator is taken offline
- GCU inhibits the auto transfer system on the affected side
- Associated AC BUS can no longer be powered by the APU or off side generator
Firex Detection Firex Monitor Panel - What is associated with the successful fire test
Firex Detection Firex Monitor Panel - What is associated with the successful fire test
Firex Detection Firex Monitor Panel - What is associated with the successful fire test
- FIRE SYS OK advisory message
- LH ENG (1), RH ENG(2) and APU FIRE PUSH(3) switch light illuminate
- LH(4), LR(5) and APU BOTTLE ARMED PUSH TO DISCHARGE switch light illuminate
- Both Master Warning(6,7) Flashers Illuminate
- FWD(8) and AFT(9) CARGO SMOKE PUSH switch lights illuminate
- Cargo BOTTLE ARMED(10) PUSH TO DISCHARGE switch light illuminates
If any light not on and FIRE SYS OK light bulb out, if NO FIRE SYS OK look for light out that is the problem section.
You are looking for 11 lights to light up, all associated with engine, APU, and the 3 lights on lower center console for the cargo + the EICAS advisory message
Hydraulic Panel 1 - What is the function of the L/R HYD SOV guarded switch light
Hydraulic Panel 1 - What is the function of the L/R HYD SOV guarded switch light
To interrupt the flow of hydraulic fluid to the associated EDP (Engine Driven Pump)
Fuel Panel - Regarding the L or R Boost pump, what does the INOP portion of the switch light indicate The On portion
Fuel Panel - Regarding the L or R Boost pump, what does the INOP portion of the switch light indicate
The Pump outlet psi is too low (INOP)
The On portion
The pump outlet psi is satisfactory (ON)
Fuel Panel - What does the FAIL portion of the GRAVITY XFLOW switch light indicate
Fuel Panel - What does the FAIL portion of the GRAVITY XFLOW switch light indicate
The gravity crossflow valve is not in the commanded position
Fuel Panel - Regarding the L or R XFLOW switch lights, what does the FAIL portion of the switch light indicate The ON portion
Fuel Panel - Regarding the L or R XFLOW switch lights, what does the FAIL portion of the switch light indicate
Crossflow pump failed to energize
The ON portion
ON Crossflow pump energized, fuel directed into low tank
Fuel Panel - Explain the function of the XFLOW AUTO OVERRIDE switch light Pressed IN/OUT (Man)
Fuel Panel - Explain the function of the XFLOW AUTO OVERRIDE switch light Pressed IN/OUT (Man)
- Pressed in arms the crossflow pump for manual crossflow and inhibits the auto crossflow function. (Switch illuminated)
- Pressed out crossflow pump is disarmed for manual use and auto crossflow is available. (Switch is not illuminated)
Bleed Air Panel - WING A/I CROSS BLEED Rotary switch
Bleed Air Panel - WING A/I CROSS BLEED Rotary switch
- From the left the right wing anti-icing valve is closed and the cross-bleed valve opens to permit bleed air from the left engine to provide anti-icing to both wings.
- From the right the left wing anti-icing valve is closed and the cross-bleed valve opens to permit bleed air from the right engine to provide anti-icing to both wings.
Bleed Air Panel - BLEED VALVES rotary switch
Bleed Air Panel - BLEED VALVES rotary switch
- AUTO allows for automatic operation the bleed valve
- CLSD selects the valves to the closed position
- MANUAL allows for manual open or closed operation of the valve (controlled by the ACSC) ISOL toggle switch.
- CLSD allows the valve to open automatically when the APU LCV is opened; during cross-bleed starts and cycled open/closed during the automatic transfer of bleeds between the APU and engines.
- OPEN allows manual operation of the valve in conjunction with the BLEED VALVES rotary switch in the manual position.
- BOTH ENG The left and right engine bleed valve is open in both engines are capable of supplying bleed air. The APU LCV is closed (normal operations)
- L ENG The left engine bleed valve is opened if the left engine is capable of supplying bleed air. The right engine bleed valve and the APU LCV are closed.
- R ENG The right engine bleed valve is open if the right engine is capable of supplying bleed air. The left engine and the APU LCV are closed.
APU Panel - PWR FUEL switch
APU Panel - PWR FUEL switch
- Pressed in ECU is powered, APU IN BITE (Built in Test)
- APU SOV OPEN status message
- Air inlet door opens
- APU RPM and EGY gauges are displayed on the EICAS status page
- Fuel pump comes on
APU Panel - PUMP FAIL portion of the switch light illuminates
APU Panel - PUMP FAIL portion of the switch light illuminates Indicates
Failed APU pump
APU Panel - SOV FAIL portion of the switch light
APU Panel - SOV FAIL portion of the switch light Indicates
APU SOV not in the commanded position
APU Panel - START/STOP switch light
APU Panel - START/STOP switch light
- Pressed in ignition is activated
- Starter motor is energized
- Fuel shutoff solenoid opens
- Start switch light illuminates
- APU START status message is displayed
Engine Start and Ignition Panel - L/R START switch light
Engine Start and Ignition Panel - L/R START switch light
- Pressed in, isolation valve opens
- Associated start valve opens
- START switch light illuminates
- L or R ENGINE START status message displayed
Engine Start and Ignition Panel - STOP switch light
Engine Start and Ignition Panel - STOP switch light
Discontinues the start sequence by closing the ATS (air turbine starter) valve on the associated engine.
Engine Start and Ignition Panel - CONT switch light
Engine Start and Ignition Panel - CONT switch light
Engages the continuous ignition
Hydraulic Panel 2 - Toggle Switch 1 (1B)
Hydraulic Panel 2 - Toggle Switch 1 (1B)
- AUTO position allows pump 1B to operate when its respective BUS is powered and at least 1 generator online and the flaps out of the zero position.
- ON position allows the pump to operate when its respective BUS is powered and at least 1 generator online, regardless of flap position. (Manual mode)
- OFF position, pump is off
Hydraulic Panel 2 - Toggle Switch 3A
Hydraulic Panel 2 - Toggle Switch 3A
- ON position allows the operation of the AC Motor Pump 3A
- OFF position, the pump is off
Hydraulic Panel 2 - Toggle switch 3B toggle switch
Hydraulic Panel 2 - Toggle switch 3B toggle switch
- AUTO position allows pump 3B to operate when its respective BUS is powered and at least 1 generator online and the flaps out of the zero position.
- ON position allows the pump to operate when its respective BUS is powered and at least 1 generator online, regardless of flap position. (Manual mode)
- OFF position, pump is off
Cabin Press Panel - LDG ELEV control knob
Cabin Press Panel - LDG ELEV control knob
Pre-selects the landing field elevation
Cabin Press Panel - MAN ALT toggle switch
Cabin Press Panel - MAN ALT toggle switch
- Controls the cabin pressurization in manual mode.
- UP/DN commands the cabin altitude to climb or descend
- HOLD holds the selected cabin altitude
Cabin Press Panel - EMER DEPRESS guarded switch light
Cabin Press Panel - EMER DEPRESS guarded switch light
- Pressed in the manual DC Motor will drive the outflow valve to fully open.
- Depressurizes the airplane
- Switch light illuminates
Cabin Press Panel - PRESS CONT switch light
Cabin Press Panel - PRESS CONT switch light
- Pressed in allows the outflow valve to be manually operated, in conjunction with the MAN RATE toggle and rotary switches. (MAN portion of the switch light illuminates)
- The fault portion of the switch light illuminates indicates both pressurization controllers have failed.
Cabin Press Panel - MAN RATE rotary switch
Cabin Press Panel - MAN RATE rotary switch
With the cabin pressurization in the manual mode, controls the rate of change of the cabin altitude.
AIR-CONDITIONING PANEL - PACK (Pneumatic air conditioning kit) L or R
AIR-CONDITIONING PANEL - PACK (Pneumatic air conditioning kit) L or R
- L PACK switch light pressed in supplies the flight deck through the mixing manifold.
- R PACK switch light pressed supplies the passenger cabin through the mixing manifold.
The FAULT portion of the switch light illuminates.
- Indicates either an over temperature or over pressure condition
The OFF portion of the switch light illuminates.
- Indicates that the associated PACK is off
AIR-CONDITIONING PANEL - RECIRC toggle switch
AIR-CONDITIONING PANEL - RECIRC toggle switch
- ON energizes both recirculation fans.
- OFF de-energizes both recirculation fans.
AIR-CONDITIONING PANEL - RAM AIR guarded switch light
AIR-CONDITIONING PANEL - RAM AIR guarded switch light
Selecting switch to OPEN allows air from the ram air scoop to enter the mixing manifold. This will allow flight deck and passenger cabin ventilation. (Switch light illuminates)
AIR-CONDITIONING PANEL - L and R MAN switch lights
AIR-CONDITIONING PANEL - L and R MAN switch lights
Pressed in allows for manual control of the airflow through the PACK by direct actuation of the temperature control valve. (switch light illuminates)
AIR-CONDITIONING PANEL - HOT/COLD toggle switches
AIR-CONDITIONING PANEL - HOT/COLD toggle switches
Increase or decreases flight deck or passenger cabin temperature in manual mode.
AIR-CONDITIONING PANEL - CKPT and CABIN rheostat control knobs
AIR-CONDITIONING PANEL - CKPT and CABIN rheostat control knobs
- Allows for auto temperature control via the ACSC mixing hot and cold air.
- Allows the pilot to set a pre-selected temperature in the flight deck as well as the passenger cabin.
AIR-CONDITIONING PANEL - CARGO switch (3 positions)
AIR-CONDITIONING PANEL - CARGO switch (3 positions)
- OFF closes intake and exhaust SOV’s to seal aft cargo bay enclosure.
- AIR SOV’s opened to allow recirculated or conditioned air to ventilate the aft cargo bay.
- COND AIR Will provide automatic temperature control of aft cargo bay utilizing electric heater
ANTI ICE PANEL - WING toggle switch
ANTI ICE PANEL - WING toggle switch
- ON AILC (Anti-ice leak detection controller) modulates the wing anti-icing valves.
- White N2 arcs appear. 0-77%
ANTI ICE PANEL - COWL LH and RH toggle switches
ANTI ICE PANEL - COWL LH and RH toggle switches
ON Allows the cowl anti-ice SOVs to open which will allow bleed air into the leading edge of the cowls via a piccolo tube
ANTI ICE PANEL - DET TEST switch light (provides 3 separate functions)
ANTI ICE PANEL - DET TEST switch light (provides 3 separate functions)
- The switch light is used to test the ice detector circuitry and probes. Successful test will be indicated by an ICE caution and illumination of the DET TEST switch light
- Pressed in and hold by the pilot will test the probes and sensor heaters. Successful test will be indicated by a green ADS HEAT TEST OK advisory message.
- When in icing conditions with the wing or cowls off, the switch light will illuminate, along with tan ICE caution message.
ANTI ICE PANEL - WSHLD LH and RH toggle switches
ANTI ICE PANEL - WSHLD LH and RH toggle switches
- Low All 4 panels are heated to 24 degree Celsius
- Hi Windshields are heated to 41 degree Celsius
ANTI ICE PANEL - WSHLD TEST button
ANTI ICE PANEL - WSHLD TEST button
Pressed in, initiates a self-test of the windshield heating system. A successful test is indicated by the L and R WSHLD HEAT and L and R WINDOW HEAT caution message. (Windshields and windows must be energized prior to the test)
ANTI ICE PANEL - PROBES toggle switches
ANTI ICE PANEL - PROBES toggle switches
- ON on ground with AC power supplied, TAT and pilot bases are off
- Static and AOA are heated
- Pitot heads are half heated
Starting the APU
Starting the APU
Make sure cowl and wing AI switches are off
APU PWR FUEL switch………ON
APU SOV OPEN status message
APU IN BITE status momentarily
APU RPM and EGT gauges displayed
APU DOOR OPEN status message
APU IN BITE status message out
APU START/STOP Switch…….ON
Start Light On
APU START status message on
Before 60% rpm - START light and APU START status message out
NOTE: 99% rpm + 2 seconds
AVAIL light on AC and DC electrical power..CHECK
Electrical Synoptic Page
* Voltage, Frequency, and Load are in GREEN
* All AC and DC buses powered and lit green
* Battery Chargers operating on DC electrical synoptic page
Bleed Source Switch.. As Required
Bleed Valves Switch…As Required
When do you run the Fire Test
When do you run the Fire Test
Prior to starting the APU on the first flight of the day.
Make sure the battery master has been on for at least 30 seconds prior to starting test
