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CRJ 200 Systems Flashcards

1
Q

Ways to Disconnect AP

SYS 4-20

A
  1. Red AP/SP DISC switch on control wheel
  2. Operating STAB trim
  3. AP ENG switch on FCP
  4. Lowering the AP DISC
    switch-bar on the FCP
  5. TOGA switch on thrust levers
  6. STAB TRIM DISC on yoke
  7. Yaw damper DISC pusbutton
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2
Q

Engine Intake

Danger Area

A

Idle thrust: 12 ft
Max thrust: 25 ft

(SYS 2-18)

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3
Q

Engine Exhaust

Danger Area

A

Idle thrust: 100 ft

Max thrust: 170 ft

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4
Q

APU Exhaust

Danger Area

A

15 ft

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5
Q

CRJ-200 Wingspan

A

69’ 6”

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6
Q

CRJ-200 Height

A

20’ 8”

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7
Q

CRJ-200 Length

A

87’ 10”

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8
Q

Minimum Pavement Width for 180 turn:

A

75 feet

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9
Q

DCU:

A

Data Concentrator Unit:

Provides information to EICAS. Generates visual and aural warnings.

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10
Q

Names of two middle CRTs?

A

ED1 and ED2.

Displays EICAS, in normal config.

Primary Page on ED1 and Status Page on ED2.

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11
Q

How to choose what is displayed on MFD CRT?

A

DRP
(Display Reversionary Panel)

PFD, NORM or EICAS.

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12
Q

How to choose where EICAS information is displayed?

A

Source Selector Panel on center pedestal.

ED1, STBY or ED2.

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13
Q

Warning Message:

A

Red, displayed on Primary Page (ED1).

Most urgent, requires immediate corrective action.

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14
Q

Caution Message:

A

Amber, displayed on Primary Page (ED1).

Less urgent than warnings, requires prompt corrective action.

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15
Q

Advisory Message:

A

Green, displayed on Status Page (ED2).

Shows a safe condition exists.

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16
Q

Status Message:

A

White, displayed on Status Page (ED2)

Shows an abnormal situation or low priority failure has occurred.

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17
Q

What happens if a CRT fails?

A

If ED1, primary page will automatically revert to ED2. If either fails, you must use Source Selector Panel set to operating display to regain control of ECP. All failures can be arranged using DCP to replace an MFD with more important info (PFD or ED2).

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18
Q

Pressing Master Warning does what?

A

Resets light for future warnings and silences aural warnings except:

  1. Stall Warbler
  2. GPWS/TCAS
  3. Overspeed/Flaps Clacker
  4. Stab Trim Clacker
  5. AP Disconnect
  6. Config Warnings/Gear Horn
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19
Q

Pressing Master Caution does what?

A

Resets light and silences aural warnings except:

  1. GPWS/TCAS
  2. Altitude Alerter
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20
Q

How are CAS messages ordered?

A
  1. Order of importance (type of message)

AND

  1. Order of occurrence.
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21
Q

What does CAS button do on ECP?

A

Cycles through multiple pages of messages and can “box” caution messages if both main generators are operating and online. If a new caution message comes up, it will not unbox.

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22
Q

What does STAT button do on ECP?

A

Cycles through multiple pages of messages and can “box” status messages at all times. If a new one appears, it will unbox.

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23
Q

What are CAS Inhibits?

A

During Initial Takeoff, Final Takeoff, and Landing, the DCUs inhibit certain warnings and cautions so to not distract pilots. As soon as phase ends, the warnings/cautions will appear.

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24
Q

What does MENU page do?

A

Used when FMS is INOP:

  1. Resets Fuel Used
  2. Set N1 carats
  3. Set flight number
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25
Which buttons still work when ECP is INOP?
PRI, STAT, CAS, STEP.
26
What do DCU 1 and DCU 2 switch lights do?
Disables and silences aural warnings of faulty DCU.
27
What is PSEU?
Proximity Sensing Electronic Unit. Senses positions of doors and displays them on DOORS synoptic page. Senses weight on wheels and other conditions
28
Name all doors and | their type:
Passenger Door: Non-plug type Galley Service Door: Semi-plug type Avionics Bay Service Door: Plug type Cargo Bay Door: Plug type Over wing emergency exits: Plug type ***Not monitored by PSEU***: Cockpit escape hatch: Plug type Aft Equipment Bay Door: Non-plug type
29
Door vent flap on passenger door:
Closes/opens with interior or exterior handle. Dumps pressure when handle is moved.
30
Passenger door on Doors synoptic page:
Red: two or more sensors indicate door is open. Amber (STOW/OUTER HNDL): outer or stow handle is not stowed. Amber (LATCH): passenger door is unlatched.
31
DOORS synoptic page:
Red: Pax door is open Amber: Door is unsafe Green: Door is safe Half magenta: Door position unknown
32
Aircraft/engine models:
CL600-2B19 GE CF34-3B1
33
How much engine thrust?
Normal thrust: 8729 LBS APR thrust: 9220 LBS
34
What is checklist sequence in emergency?
1. Immediate action items 2. Emergency checklists 3. Abnormal checklists 4. Normal checklists
35
Takeoff config warning:
1. Autopilot engaged 2. Flaps not in takeoff position 3. Spoilers not down 4. Parking brake set 5. Rudder, aileron, or stab trim out of green range (SYS 13-40)
36
When is N1 VIB shown on EICAS?
1. When both engines 55% N2 + 2 sec 2. Single engine in flight (SYS 22-32)
37
Which lights will turn on FDR?
Strobes or beacon | or weight off wheels
38
What is max flight deck oxygen pressure?
2800 PSI Will blow out the green oxygen blowout plug on right side of fuselage.
39
What is normal flight deck oxygen pressure and minimum on EICAS?
Normal: 1850 PSI EICAS O2 turns amber: 1410 PSI
40
Passenger oxygen:
Deploys at 14,000' cabin altitude. O2 generators provide 13 minutes of oxygen
41
Portable oxygen bottles:
2 of them in: first overhead bin on right side, or forward wardrobe used by FA for first aid or emergencies.
42
Where is APU located?
Titanium enclosure in | aft equipment bay.
43
What is "brain" of APU?
ECU | Electronic Control Unit
44
How does APU get fuel?
FCU (Fuel Control Unit) gets fuel from APU/XFLOW pump from both left and right main tanks. During negative g conditions or APU/XFLOW pump failure, right engine fuel manifold fuels APU.
45
What are APU door positions?
OPEN, MID, CLOSED. Controlled by ECU.
46
How does the APU avoid overtemping?
ECU controls bleed air output by modulating the LCV (load control valve).
47
What happens when PWR/FUEL switch light is pressed?
1. Pump on (XFLOW/APU) 2. Door opens 3. IN BITE 4. Gauges appear on ED2 5. SOV opens (SYS 20-7)
48
APU Start sequence:
Start/Stop is pushed At 50% RPM: Starter cuts out At 95% + 4 sec: Green AVAIL light on
49
What does green "AVAIL" light on APU mean?
APU is ready to | supply bleed air
50
What is primary function of the APU?
AC Electrical Power.
51
How does APU shutdown?
The ECU sends a simulated 107% (Overspeed) signal, | which protectively shuts down APU.
52
How to shutdown APU?
1. START/STOP Switch 2. PWR/FUEL Switch 3. APU FIRE PUSH switch 4. APU SHUTOFF switch on external services panel 5. APU EMER STOP switch in Aft Equipment Bay
53
What will emergency shutdown the APU in the air?
1. Overspeed 2. DC power loss 3. ECU failure 4. Loss of speed signal 5. Emergency fire shutdown
54
When do APU gauges appear on status page?
From ECU power up (PWR/FUEL switch) to 60 seconds after shutdown and ECU power down.
55
What does red APU on fuel synoptic page mean?
APU Fire with SOV failed at open or mid.
56
Minimum battery voltage to start APU.
22 V DC.
57
How is APU cooled?
Mechanical cooling fan attached to gearbox draws air in.
58
How does system handle APU Fire in flight?
ECU: 1. Closes fuel SOV 2. Closes bleed air SOV 3. APU shuts down Fire bottle must be discharged manually
59
How does system handle APU fire on ground?
ECU: 1. Closes fuel SOV 2. Closes bleed air SOV 3. APU shuts down 4. 5 sec later, fire bottle discharges 5. Horn sounds in Aft Equipment Bay
60
What is a GCU?
Generator Control Unit, monitors all generators.
61
What kind of power do generators provide?
115 VAC,400 Hz,3 phase IDG: 30 KVA to FL350 25 KVA Above FL350-FL370 APU: 30 KVA to FL370 ADG: 15 KVA
62
What is IDG monitored for and what will happen?
HOTLOP (high oil temp, low oil pressure)...will get fault light on overhead. Severe oil overtemp or overtorque automatically disconnects IDG
63
How can ADG be deployed?
1. Automatically when complete AC power loss 2. Manually by pulling ADG manual release handle
64
How can you override ADG?
If a generator comes back online, ADG can be overridden by PWR TXFR OVERRIDE switch.
65
What does green AVAIL light on external AC switch light mean?
Power is connected and is of proper phase, voltage, and frequency. 3 phase, 115VAC, 400 Hz
66
AC Bus priority logic:
1. On-side 2. Inside (APU) 3. Cross-side 4. Outside (External AC)
67
What is AC Service configuration?
AC UTILITY 1 and 2, AC SERVICE, and DC SERVICE buses are powered ``` 1. EXT AC switchlight on external services panel OR 2. APU SERV BUS on FA panel (APU AC PWR) ```
68
AC Utility Bus 1 and AC Utility Bus 2 Shed: (SYS 6-22)
Air: Single generator ops Ground: Single generator ops, Pax and service doors closed Flaps out of 0
69
What buses will be powered by ADG?
ADG BUS AC ESS BUS DC ESS BUS DC BATT BUS and Hydraulic 3B pump
70
Details on TRUs:
There are five, converts 115 VAC to 28 VDC. Rated at 100 Amps. TRU 1 , TRU 2 SERV TRU ESS TRU 1 , ESS TRU 2
71
Two batteries:
Main Batt: 17 amp hour, 24 VDC APU Batt: 43 amp hour, 24 VDC
72
Green AVAIL light on external DC?
Proper: | voltage and polarity
73
How are batteries charged?
Main battery: AC UTIL BUS 1 APU battery: AC UTIL BUS 2
74
Which buses are hot buses?
1. MAIN BATT DIR BUS 2. APU BATT DIR BUS 3. DC EMER BUS.
75
What does DC EMER BUS power?
Fire suppression systems - All engine fire bottles, fuel and hydraulic SOVs (SYS 6-33)
76
What happens if | TRU 1 fails?
DC TIE 1 automatically closes and the SERV TRU powers DC BUS 1. UTIL BUS 1 is shed.
77
When will DC EMER BUS appear?
1. When failed 2. Not powered 3. One of its sources is failed or not powered (SYS 6-53)
78
Should you pull ADG handle if it automatically deploys?
Yes, so that the | BATT BUS will power DC ESS BUS.
79
When will IDG automatically disconnect?
Severe oil overtemp OR Overtorque (SYS 6-4)
80
What happens if | ESS TRU 1 fails?
DC ESS BUS and DC BATT BUS remain powered from ESS TRU 2
81
What to do if both | ESS TRU 1 and 2 fail?
Manually press ESS TIE switchlight to power both DC ESS BUS and DC BATT BUS ***Note: Service TRU can power EITHER: 1. DC ESS BUS and DC BATT BUS 2. DC BUS 1/2 (SYS 6-26)
82
What are the limitations if APU door fails open?
1. APU operating OR 2. Max speed 300 KIAS
83
What happens when | AC BUS 2 switches power?
Flight Control Computer #2 (FCC 2) will briefly lose power. As a result: 1. Autopilot disconnects 2. Auto tune #2 resets 3. Yaw Damper 2 trips off
84
What is on accessory gearbox?
3 Fluids: 1. Fuel Pump 2. Hydraulic Pump 3. Oil pump 2 Electrics: 1. IDG 2. Alternator (FCU) 1 Air: 1. Air turbine starter
85
What does pressing the TOGA buttons do?
Ground: 1. Sets FD to 12.5 NU and TO TO mode 2. Updates aircraft position at rwy Air: 1. Sets FD to 10 NU and GA GA mode 2. Sequences missed approach 3. Disconnects AP
86
When does the starter cutout?
APU: 50% RPM Engine: 55% N2
87
How are the ignition systems powered?
Ignition A: AC ESS BUS Ignition B: DC BATT BUS through static inverter
88
When is CONT ignition automatically activated?
When stall protection computer detects an impending stall.
89
How is oil cooled?
Fuel/oil heat exchanger
90
What is the FCU?
Fuel Control Unit. Supplies fuel to engine. Below 79% N1, hydro mechanically controls N2 to thrust lever position. Above 79% N1, FCU trims fuel to set N1 to thrust lever angle.
91
What do ENG SPEED switches do?
1. Arm FCU fuel trimming above 79% N1. | 2. Arm APR.
92
What happens to fuel not used for combustion?
Returned to fuel system to provide motive flow for main and scavenge ejectors.
93
What does | N2 overspeed governor do?
Trims fuel if | N2 exceeds 103%
94
What is N1 | overspeed RPM?
98.6%, pointer will turn red and flash for 4 sec. | SYS 22-13
95
What is APR?
Provides 2.3% N1 increase during engine failure. DCUs send signal to both engines to increase 2.3% when either engine falls below 67.6%. 5-minute "timer" after weight off wheels.
96
What is required to | arm APR?
1. APR ARM switch - ARM 2. Both ENG SPEED switches - ON 3. Weight on wheels 4. Both engines N1 greater than 79% 5. Two serviceable DCUs (SYS 22-15)
97
What is | auto throttle-retard?
If a reverser unlocks in flight, automatically brings thrust lever to idle.
98
Thrust reverser limitations?
Cannot be below 60 knots. Also will shutoff anti-ice until 5 seconds after stowage.
99
What is the main way of transferring fuel from wing tank to collector tank?
Gravity flow. Backup is scavenge ejector (from low places that gravity can't get).
100
How does fuel get from center tank to collector tanks?
1. Transfer ejectors to main tank 2. Gravity or scavenge ejectors to collector tank 3. Main ejectors or boost pump to fuel/oil heat exchanger 4. To engine
101
Capacity of | collector tanks?
10 GAL.
102
What do NACA scoops do?
Ground: Vent wing tanks Air: Slightly pressurize wing tanks
103
Boost pumps:
1. Used for engine start 2. Backup for the main ejectors (Capable of providing fuel to both engines)
104
When does center tank automatically transfer to wing tanks?
Starts: Wing tank is 93% full Stops: Wing tank is 97% full Process continues until center tank is empty
105
Fuel imbalance caution?
800 lbs.
106
What is the FSC?
Fuel System Compute Controls fuel system.
107
When does auto cross flow happen?
200 LB. imbalance: FSC opens XFLOW SOV until low tank is 50 lbs higher.
108
What is gravity cross flow?
It's like opening a pipe between the two wing tanks...side slip to transfer fuel.
109
What does BOOST PUMP switch do?
Arms low pressure sensor in that manifold, will turn on BOTH boost pumps if a low pressure occurs.
110
What would you see with XFLOW/APU pump fail?
1. XFLOW/APU PUMP caution message 2. PUMP FAIL on APU PWR/FUEL switchlight
111
Fire Zone A:
Engine core: | Fire detection and extinguishing
112
Fire Zone B:
Engine jet pipe and pylon: only detection.
113
What will cause a fire fail message?
A false fire (only one loop sensing) or a short.
114
Engine fire detection:
Engine core: dual loop with two bottles (two squibs each) Engine jet pipe and pylon: dual loop, no extinguishing
115
APU fire detection:
Dual loop, one fire bottle.
116
Cargo fire detection:
Two smoke detectors, Normal and standby. Two bottles, one rapid discharge and one slow discharge (30 minutes).
117
Lavatory fire detection:
A smoke detector. Automatic fire extinguisher in waste bin.
118
MLG Bay detection:
One overheat sensor loop. No extinguishing. (Put the gear down)
119
What does pushing the L/R ENG FIRE PUSH do?
1. Disconnects IDG 2. Closes fuel SOV 3. Closes hydraulics SOV 4. Closes bleed SOV 5. Arms squibs
120
What does pushing the APU FIRE PUSH do?
1. Closes fuel SOV 2. Closes bleed air LCV 3. Arms squibs 4. Energizes fire shutoff relay to shutdown APU
122
How is N1 amplifier powered?
The alternator on accessory gear box.
123
What message if fueler leaves refuel/Defuel panel powered?
AUTO XFLOW INHIB
124
How is the APU protected from bleed air backflow?
1. Check valve | 2. Interlock protection.
125
What is APU Interlock Protection?
The 10th stage bleed switches are interlocked to prevent a switch position being selected that would backflow the APU.
126
How many loops is the 10th and 14th stage bleed air leak protection?
10th - dual loop | 14th - single loop.
127
How is wing anti-ice overheat detected?
Thermal overheat switches.
128
What are the packs protected from?
Overtemp - can be reset below 85 C Over pressure - can be reset below 60 psi
129
What is the PRSOV and its function?
Pack - Pressure Regulating Shutoff Valve. Controls pressure to 30 psi for dual pack and 41 psi for single pack operation.
130
What are the display cooling fans?
Fan 1: FLT NORM/GND ALTN Fan 2: GND NORM/FLT ALTN Standby: STBY (Unfiltered air)
131
Where is avionics cooling air exhausted?
When passenger or service door open: outboard valve which exhausts near wing root area. When both closed: inboard valve which exhausts through outflow valves
132
What is the difference between Cargo Fan FAN and COND AIR?
FAN: recirc and exhaust SOVs are open, and recirc fan recirculates air to keep temp above freezing. COND AIR: heater is enabled and recirc fan blows heated air. Heater cycles to keep 21-27 C.
133
When will you get CARGO OVHT caution?
Cargo bay temperature exceeds 35 C OR When heater exhaust duct temp exceeds 49 C (Heater shut downs)
134
What happens when cargo smoke detected?
1. SMOKE aural warn. 2. SMOKE CARGO warning message 3. Both CARGO SMOKE PUSH switchlights illuminate 4. Cargo heater shuts down 5. All 3 SOVs close (SYS 8-10)
135
What is maximum diff p?
Positive 8.7 psid | Negative 0.5 psid
136
What is a CPC and its purpose?
``` Cabin Pressure Controller - Active CPC uses ADC 1 (ADC 2 is a backup) - CPC sends output to outflow valves to maintain 8.33 psid - Active CPC changes automatically when: 1. On ground for 3 minutes OR 2. Active CPC fails in flight ``` (SYS 3-14)
137
Where are outflow valves and how are they controlled?
Rear pressure bulkhead below floor level. Electrically controlled, pneumatically actuated.
138
What is the purpose of altitude limiters within each outflow valve?
Closes each outflow valve to maintain a cabin altitude of 14,250 +/- 750 ft (SYS 3-15)
139
What is CPAM and its purpose?
Cabin Pressure Acquisition Module. Generates info for EICAS: 1. CABIN ALT 2. Rate of change 3. Diff pressure ``` CABIN ALT caution msg at cabin alt. > 8,500 ft CABIN ALT warning msg at cabin alt. > 10,000 ft SEAT BELT and NO SMKG at cabin alt. 10,000 ft Auto deploy PAX O2 masks at cabin alt. 14,000 ft ```
140
What happens if CPAM fails?
Auto oxygen and sign functions are lost. EICAS indications given by standby CPC.
141
When will outflow valves automatically open?
Positive 8.6 psid AND negative 0.5 psid (SYS 3-14)
142
What is the ice detectors heating cycle?
They deice for 5 sec every 60 sec in order to continuously detect ice
143
How does wing anti-ice system maintain temp?
A temperature controller in aft equipment bay modulates the wing anti-ice valve to maintain 107 +/- 8 C If INOP, STBY opens and closes the wing anti-ice valve to maintain 49 +/- 4 C
144
What are ADSHCs and their purpose?
Air data sensor heater controllers. They electronically control heating elements to prevent ice formation and false readings.
145
Which probes are automatically heated? | PROBES switches - OFF
Ground: All Pitot Tips = 1/2 PWR Flight: All full (SYS 12-8)
146
Windshield heat operation:
Low: all low High: windshields high, side windows low
147
Normal hydraulic pressure?
3000 psi. Normal operating pressure per (SYS 11-11) is 2800 to 3200 psi.
148
HYD PUMP 1B/2B Logic
In AUTO, pumps ON: cross-side bus powered, cross-side IDG operating flaps out of 0 (Does NOT matter if ground vs. air) Air: - In ON, pumps ON: cross-side bus powered cross-side IDG operating Ground: - In ON, pumps on: ONLY cross-side bus powered
149
What hydraulic accumulators are there?
System 1 has an accumulator to "shock absorb" Each brake system has one to provide 6 brake applications after a total system 2/3 failure.
150
Which hydraulic systems have heat exchangers?
Systems 1/2 have air/heat exchangers from ram air.
151
EICAS normal hydraulic pressure
1800-3200 psi. (Green)
152
When on EICAS will HYD quantity show white?
Less than 45% or more than 85%
153
What is a PCU and its function?
Power control unit. Converts mechanical "yoke" power to hydraulic power to actuate flight controls.
154
What are flutter dampers?
Used to prevent flutter of control surfaces in air and provide gust lock protection on ground. One per aileron, two per each elevator.
155
After ROLL DISC, what will happen?
After 20 sec, SPOILERON ROLL caution will appear until PLT ROLL or CPLT ROLL is selected. That will give the "operating" pilot control of the onside SPOILERON.
156
What is SECU and its purpose?
Spoiler Electronic Control Unit. Inputs SPOILERON actuators.
157
How is aileron and rudder trim powered?
Electrically controlled, hydraulically operated.
158
What color are trims on EICAS?
On ground: white when out of takeoff range. In air: white regardless.
159
How many channels does STAB TRIM have? What is HSTCU?
2. Horizontal Stab Trim Unit.
160
What is MACH TRIM?
Trims during hand flying only to counteract shifting center of pressure above Mach 0.4.
161
Stab Trim priority:
1. Captain 2. FO 3. Autopilot 4. AUTO (flap changes) 5. Mach trim
162
What is FECU and purpose?
Flap electronic control unit. Controls flaps.
163
What is SDU and purpose?
Skew Detection Unit. Detects uneven extension of flaps and disables flap motors if found. FLAPS FAIL caution will be given.
164
What do spoiler colors on EICAS mean?
Green - both SECUs and PCUs are operating. White - one SECU and/or PCU is INOP Amber - both SECUs or PCUs are INOP.

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