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Mesa Captain Upgrade > Overhead Panel > Flashcards

Overhead Panel Flashcards

Prep for Oral Exam

1
Q

What does the DC service switch power?

A
  1. Lights (Nav, Beacon, Service, Boarding, Galley Dome, Lavatory.
  2. Boarding Announcement
  3. Chart Lights
  4. Cabin Lights, Upward and Downward
  5. Service Bus
  6. Power Sensing (Service Bus and TRUs)
  7. Waste and Water Control
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2
Q

What lights illuminate with the Battery Master ON

(no AC power established)

A
  1. AC ESS XFER switchlight
  2. The INOP portion of the L & R boost pump switch lights
  3. The FAULT portion of the PRESS CONT switchlight
  4. The OFF portion of the L & R PACK switch light
  5. MACH TRIM switch light
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3
Q

Regarding the AC switchlight, what does the illumination of the AVAIL portion

indicate?

A

The system has the correct

  1. Voltage (115 v)
  2. Frequency (400 hz)
  3. Phase (3 phase)
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4
Q

Regarding the IDG guarded switchlight, what does the illumination of the FAULT portion indicate?

DISC portion?

A
  1. Associated IDG has either high oil temp (HOT) or low oil pressure (LOP). (HOT-LOP)
  2. The DISC portion indicates that the associated IDG has been disconnected.
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5
Q

What does illumination of the AC ESS XFER switchlight indicate?

A

AC BUS 1 is not powering the AC ESS BUS.

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6
Q

When should the generator be reset?

A

When directed by the QRH

(ex: QRH ELEC 12)

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7
Q

Regarding the AUTO XFER switchlight, what does illumination of the FAIL portion indicate?

A
  1. The associated GCU (Generator Control Unit) has detected a BUS fault or generator overcurrent.
  2. The affected generator is taken offline.
  3. The GCU inhibits the auto transfer system on the affected side.
  4. Associated AC BUS can no longer be powered by the APU or offside.
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8
Q

What is associated with a successful fire test?

A
  1. FIRE SYS OK advisory message
  2. LH ENG, RH ENG, and APU FIRE PUSH switchlight illuminate.
  3. LH, RH and APU BOTTLE ARMED PUSH TO DISCHARGE switchlight illuminate.
  4. Both Master Warning Flashers illuminate.
  5. FWD & AFT CARGO SMOKE PUSH switchlights illuminate.
  6. Cargo BOTTLE ARMED PUSH TO DISCHARGE switchlight illuminates.
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9
Q

What is the function of the L/R HYD SOV guarded switchlight?

A

To interrupt the flow of hydraulic fluid to the associated EDP (Engine Driven Pump).

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10
Q

Regarding the L or R Boost Pump, what does the INOP portion of the switchlight indicate?

The ON portion?

A
  1. The pump outlet PSI is too low (INOP)
  2. The pump outlet PSI is satisfactory (ON)
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11
Q

What does the FAIL portion of the GRAVITY XFLOW switchlight indicate?

A

The gravity crossflow valve is not in the commanded position.

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12
Q

Regarding the L or R XFLOW switchlights,

what does the FAIL portion of the switchlight indicate?

The ON portion?

A
  1. Respective crossflow SOV is not in the commanded position or crossflow pump failed to energize with L or R crossflow SOV selected open.
  2. ON crossflow pump energized, fuel directed into low tank.
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13
Q

Explain the function of the XFLOW AUTO OVERRIDE switchlight.

Pressed IN

Pressed OUT

A
  1. Pressed IN arms the crossflow pump for manual crossflow and inhibits the auto crossflow function. (switch is illuminated).
  2. Pressed OUT crossflow pump is disarmed for manual use and auto crossflow is available. (switch not illuminated)
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14
Q

Tell me about the

WING A/I CROSS BLEED rotary switch.

A
  1. FROM LEFT: the right wing anti-icing valve is closed and the crossbleed valve opens to permit bleed air from the left engine to provide anti-icing to both wings.
  2. FROM RIGHT: the left wing anti-icing valve is closed and the crossbleed valve opens to permit bleed air from the right engine to provide anti-icing to both wings.
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15
Q

Tell me about the

BLEED VALVES rotary switch

A
  1. AUTO allows for automatic operation of the bleed valves.
  2. CLSD selects the valves to the closed position.
  3. MANUAL allows for manual open or closed operation of the valve (controlled by the ACSC).
    4.
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16
Q

What happens when you push

the PWR FUEL switchlight?

A
  1. Pressed in - ECU is powered. APU IN BITE (Built In TEst) status message.
  2. APU SOV OPEN status message illuminates
  3. Air inlet door opens.
  4. APU RPM and EGT gauges are displayed on the EICAS status page.
  5. Fuel pump comes on.
17
Q

PUMP FAIL portion of the PWR FUEL switchlight illuminates.

A

Indication a failed APU pump

18
Q

SOV FAIL portion of the PWR FUEL switchlight indicates what?

A

Indicates APU SOV not in the commanded position

19
Q

START/STOP switchlight does what?

A
  1. Pressed in ignition is activated.
  2. Starter motor is energized.
  3. Fuel shutoff valve opens.
  4. Start switchlight illuminates.
  5. APU START status message is displayed.
20
Q

What happens when you press the L/R START switchlight?

A
  1. Pressed in - isolation valve opens.
  2. ASsociated start valve opens.
  3. START switchlight illuminates.
  4. L or R ENGINE START status message displayed.
21
Q

What happens when you push the STOP switchlight?

A

Discontinues the start sequence by closing the ATS (Air Turbine Start) valve on teh associated engine.

22
Q

What happens when you press the CONT switchlight?

A

Engages the continuous ignition.

23
Q

What are the various positions of the HYD toggle switch 3A and what do they do?

A
  1. ON position - allows the operation of AC Motor Pump 3A
  2. OFF position - pump is off.
24
Q

What are the various positions of the HYD toggle switch 1 (1B), 2 (2B), and 3B and what do they do?

A
  1. 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.
  2. ON position - allows the pump to opeprate when its respective BUS is powerd and at least 1 generator online, regardless of flap postion. (manual mode)
  3. OFF position - pump is off.

Mesa Captain Upgrade (5 decks)

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