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Ground School Systems 2 > PC-21 Alerting System > Flashcards

PC-21 Alerting System Flashcards

1
Q

What are the main components to PC-21 alert system?

A
  1. Attention Getters
  2. DWP
  3. Engine Indicating and Crew Alerting System (EICAS)
  4. Audio Management Unit (AMU)
  5. Test Controls
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2
Q

What does the EICAS do?

A
  • The Engine Indicating and Crew Alerting System displays the alerts in the correct context prioritises them and assists the aircrew to carry out the correct procedures.
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3
Q

What is the purpose of the attention getters?

A

Inform the aircrew that a new red warning or amber caution has been generated

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4
Q

How many captions does the DWP have and when do they illuminate?

A
  • 25 red, amber or green captions
  • The captions illuminate to indicate either that a malfunction has occur or for green captions, that a system is operating.
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5
Q

What does the EICAS do?

A
  • It is the core of the alerting system.
  • Receives status information from the aircraft systems and displays details visual alerts on the MFDs, PFD and LGCU (Landing Gear Control Unit).
  • Incorporated into the Mission Computer (MC)
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6
Q

What does the AMU do?

A

Provides the required audio alerts for warnings and cautions, as well as for a variety of other flight conditions.

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7
Q

What does the DWP do?

A
  • Operates independently of the MC and provides a backup for the EICAS.
  • Only displays most important alerts for the systems that it receives status information
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8
Q

When does the landing gear display EICAS alerts?

A

When landing gear is retracted during an approach.

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9
Q

When does the landing gear display local alerts?

A

When it’s not in the selected position.

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10
Q

What occurs when the MC has failed?

A
  • Attention getters flash

- DWP takes over aural alerts

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11
Q

Does SFD and EMD operate independently of the EICAS and DWP? When are these alerts important?

A
  • Yes.

- Important if mission computer fails

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12
Q

What components use status data to generate alerts?

A
  1. SFD and EMD
  2. EICAS
  3. LGCU
  4. DWP
  5. AMU
  6. FMS
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13
Q

Where are alerts recorded?

A

Health and Usage Monitoring System and PMM

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14
Q

How is the MC powered?

A

From mission bus which is from BATT BUS when MC/HUD switch is on.

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15
Q

How is the right MFD powered?

A

From MISSION BUS

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16
Q

When is power to the LH MFD only allowed?

A

Once the GEN 1 BUS comes online

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17
Q

How are DWP and the LGCU powered?

A

By the BATT BUS

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18
Q

What are aircrew alerts provided primarily by?

A
  • Flashing of the attention getters
  • Audio alerts from the Audio Management Unit (AMU)
  • Captions on the Dedicated Warning Panel (DWP)
  • Captions shown in the alert area and WARN page of the MFD - generated by EICAS.
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19
Q

In addition, where are local alerts provided?

A
  1. SFD
  2. PFD
  3. EMD
  4. MFD SYS pages
  5. LGCU
  6. FMS
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20
Q

What is the priority order of alert captions on MFD/DWP?

A
  1. Red Warnings (MFD and DWP)
  2. Amber Cautions (MFD and DWP)
  3. Red Advisories (MFD)
  4. Amber Advisories (MFD)
  5. Grey Advisories (MFD)
  6. Green Status Messages (DWP)
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21
Q

What do Red Warnings indicate? What must the pilot do once a red warning is activated?

A
  • Severe malfunctions, dangerous situations or conditions that may lead to the aircraft departing from intended flight conditions
  • Pilot must carry out the appropriate procedure immediately.
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22
Q

What do Amber cautions indicate?

A
  • Indicate the existence of a precautionary situation or condition
  • When an amber caution is activated, the pilot must carry out the appropriate procedure in a timely manner as other cockpit priorities allow.
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23
Q

What do Red Advisory status messages indicate?

A
  • Higher priority than amber alerts

- Limited to autopilot.

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24
Q

What are Amber advisory status messages?

A

That a system or flight maneuver has been reached that the pilot should be aware of.

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25
Q

What are Grey advisory messages?

A
  1. Provide additional status information

2. Indicate the failure of specified monitoring systems normally available through the MC.

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26
Q

What are Green status messages?

A

Displayed on DWP only and indicate the operation of certain systems.

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27
Q

What are audio tones not generated for?

A

Everything but green status messages or grey advisories.

28
Q

What sound is generated for a red warning?

A

Repeating Gong

29
Q

What tone is generated for an amber caution?

A

Single chime

30
Q

What does the red FIRE on the DWP mean?

A

A fire has been detected in the engine compartment or the temperature is above the specified limit

31
Q

What does the red PMS on the DWP mean?

A

Malfunction of the PMS or PMS has been selected to manual

32
Q

What does a red OIL on the DWP mean?

A

Engine oil pressure is outside defined limits

33
Q

What does a red OXY on the DWP mean?

A

Breathing oxygen concentration too low or oxygen system unreliable.

34
Q

What does a red FPR on the DWP mean?

A

Fuel pressure lower than the specified limit for more than 2 seconds

35
Q

What does a red HYDS on DWP mean?

A

Hydraulic pressure below 1850 psi in both systems

36
Q

What does a red GENS on DWP mean?

A

Both generators are off line

37
Q

What does a red OVPR on DWP mean?

A

Cabin differential pressure is higher than 4.5 psi

38
Q

What does the amber OXY on DWP mean?

A

Failure in system temperature or pressure sensors

39
Q

What does the amber FUEL on DWP mean?

A

The contents of either fuel tank is below 70 lb +13 lb

40
Q

What does the amber HYD on DWP mean?

A

Pressure in one of the hydraulic systems is below 1850 psi

41
Q

What does the amber GEN1 on DWP mean?

A

Generator 1 is off line

42
Q

What does the amber GEN2 on DWP mean?

A

Generator 2 is off line

43
Q

What does the amber CHIP on DWP mean?

A

Metal particles detected in either Reduction Gear Box or Accessory Gear Box

44
Q

What does the amber SKID on DWP mean?

A

Malfunction of the anti-skid system or the system has been switched off

45
Q

What does the amber ICE on DWP mean?

A
  • Malfunction of the heat element in one or more of the pitot or AOA probes
  • Probe heat has been switched OFF and the OAT is lower than 4 deg
  • PROP de-ice has been switched ON and the OAT is more than 10 C
46
Q

What does the amber CNPY on DWP mean?

A

The canopy is not closed and locked

47
Q

What does the amber TRANS on DWP mean?

A

External wing tanks are empty

48
Q

What does the green START caption on DWP mean?

A

The engine start system is energised

49
Q

What does the green IGN caption on DWP mean?

A

Igniters are on

50
Q

What does the green F-PUMP caption on DWP mean?

A

Booster pump is on

51
Q

What does the green M-OXY caption on DWP mean?

A

Max oxygen has been manually selected

52
Q

What does the green I-BYP caption on DWP mean?

A

Inertial bypass system is operational

53
Q

What does the green PROP caption on DWP mean?

A

Prop de-ice circuit is energized

54
Q

What does the green PROBE caption on DWP mean?

A

Probes de-ice circuit is energised

55
Q

When can the warning page be selectable?

A

When it lights up

56
Q

What occurs when the attention getter has been pressed?

A
  • Extinguish the attention getter light

- Cancel the audio tone.

57
Q

What is displayed on the PC21 MFD WARN page?

A

View all active captions.

58
Q

What does the MFD WARN page displays?

A
  • All active warning, caution and advisory captions

- The checklist application to the selected caption

59
Q

Do red, amber, or grey advisor status messages require acknowledgment from the aircrew?

60
Q

What will be displayed on the HUD and all teh MFDS when the MC calculates a potential ground or mid-air collision danger?

A
  • Breakaway cross

- the word BREAK on the MFDs

61
Q

What does an amber EICAS caution in the left part of the alert area mean? What will accompany it?

A
  • An EICAS alerting function has failed.

- Grey advisory caption will be accompanied in the alert area.

62
Q

What occurs if both DWP’s fail?

A

Aural alerts will not longer occur for DWP related alerts.

63
Q

What are the three AMU channels?

A

Channel 1 controls front cockpit signals
Channel 2 controls the rear cockpit audio signals
Channel 3 is a spare

64
Q

What occurs when amber AMU 1 FAIL, AMU 2 FAIL, AMU 3 FAIL caption appears? What action should be taken by the pilot?

A
  • The respective AMU channel has failed.
65
Q

What should be done if AMU channel 1 or channels 1 and 2 both fail?

A

Set the AMU channel selector switch located on the COMM panel on the right console to the AMU BACKUP position

66
Q

What should be done if AMU channels 1 and 3 both fail?

A

Set the cockpit AMU channel selector switch to the ORIDE position

Ground School Systems 2 (19 decks)

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