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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
What are Grey advisory messages?
1. Provide additional status information | 2. Indicate the failure of specified monitoring systems normally available through the MC.
26
What are Green status messages?
Displayed on DWP only and indicate the operation of certain systems.
27
What are audio tones not generated for?
Everything but green status messages or grey advisories.
28
What sound is generated for a red warning?
Repeating Gong
29
What tone is generated for an amber caution?
Single chime
30
What does the red FIRE on the DWP mean?
A fire has been detected in the engine compartment or the temperature is above the specified limit
31
What does the red PMS on the DWP mean?
Malfunction of the PMS or PMS has been selected to manual
32
What does a red OIL on the DWP mean?
Engine oil pressure is outside defined limits
33
What does a red OXY on the DWP mean?
Breathing oxygen concentration too low or oxygen system unreliable.
34
What does a red FPR on the DWP mean?
Fuel pressure lower than the specified limit for more than 2 seconds
35
What does a red HYDS on DWP mean?
Hydraulic pressure below 1850 psi in both systems
36
What does a red GENS on DWP mean?
Both generators are off line
37
What does a red OVPR on DWP mean?
Cabin differential pressure is higher than 4.5 psi
38
What does the amber OXY on DWP mean?
Failure in system temperature or pressure sensors
39
What does the amber FUEL on DWP mean?
The contents of either fuel tank is below 70 lb +13 lb
40
What does the amber HYD on DWP mean?
Pressure in one of the hydraulic systems is below 1850 psi
41
What does the amber GEN1 on DWP mean?
Generator 1 is off line
42
What does the amber GEN2 on DWP mean?
Generator 2 is off line
43
What does the amber CHIP on DWP mean?
Metal particles detected in either Reduction Gear Box or Accessory Gear Box
44
What does the amber SKID on DWP mean?
Malfunction of the anti-skid system or the system has been switched off
45
What does the amber ICE on DWP mean?
- 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
What does the amber CNPY on DWP mean?
The canopy is not closed and locked
47
What does the amber TRANS on DWP mean?
External wing tanks are empty
48
What does the green START caption on DWP mean?
The engine start system is energised
49
What does the green IGN caption on DWP mean?
Igniters are on
50
What does the green F-PUMP caption on DWP mean?
Booster pump is on
51
What does the green M-OXY caption on DWP mean?
Max oxygen has been manually selected
52
What does the green I-BYP caption on DWP mean?
Inertial bypass system is operational
53
What does the green PROP caption on DWP mean?
Prop de-ice circuit is energized
54
What does the green PROBE caption on DWP mean?
Probes de-ice circuit is energised
55
When can the warning page be selectable?
When it lights up
56
What occurs when the attention getter has been pressed?
- Extinguish the attention getter light | - Cancel the audio tone.
57
What is displayed on the PC21 MFD WARN page?
View all active captions.
58
What does the MFD WARN page displays?
- All active warning, caution and advisory captions | - The checklist application to the selected caption
59
Do red, amber, or grey advisor status messages require acknowledgment from the aircrew?
No
60
What will be displayed on the HUD and all teh MFDS when the MC calculates a potential ground or mid-air collision danger?
- Breakaway cross | - the word BREAK on the MFDs
61
What does an amber EICAS caution in the left part of the alert area mean? What will accompany it?
- An EICAS alerting function has failed. | - Grey advisory caption will be accompanied in the alert area.
62
What occurs if both DWP's fail?
Aural alerts will not longer occur for DWP related alerts.
63
What are the three AMU channels?
Channel 1 controls front cockpit signals Channel 2 controls the rear cockpit audio signals Channel 3 is a spare
64
What occurs when amber AMU 1 FAIL, AMU 2 FAIL, AMU 3 FAIL caption appears? What action should be taken by the pilot?
- The respective AMU channel has failed.
65
What should be done if AMU channel 1 or channels 1 and 2 both fail?
Set the AMU channel selector switch located on the COMM panel on the right console to the AMU BACKUP position
66
What should be done if AMU channels 1 and 3 both fail?
Set the cockpit AMU channel selector switch to the ORIDE position

Ground School Systems 2 (19 decks)

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