CRJ Study Guide Flashcards
Max Ramp Weight
82,750 lbs
Max T.O. Weight
82,500 lbs
Max Landing Weight
73,500 lbs
Max Zero Fuel Weight
70,000 lbs
Min Flight Weight
45,000 lbs
Max Aft Cargo Bay Capacity
4,375 lbs
Max Fwd Cargo Bay Capacity
850 lbs
Max Center Cargo Bay Capacity
850 lbs
Max Pressure Refueling capacity
Total - 19,594 lbs
Mains - 7,492 lbs
Center - 4,610 lbs
Max Gravity Refueling Capacity
Total - 14,810 lbs
Mains - 7,405 lbs
Center - N/A
Max Operating - Vmo
335 KIAS
Max operating Mach number - Mmo
0.85 M
RVSM Max cruise Mach number
0.82 M
Max Flap extension speed
1 - 230 KIAS 8 - 230 KIAS 20 - 220 KIAS 30 - 185 KIAS 45 - 170 KIAS
Max Landing Gear Operating speed for extension - VLO
220 KIAS
Max Gear Operating speed for retraction - VLO
200 KIAS
Max Landing Gear extended speed - VLE
220 KIAS
Max Turbulence Penetration speed
280 KIAS / 0.75 M
Max Operating Altitude
41,000 ft
Max airport pressure altitude for TO & L
8,000 ft
Max Windshield Wiper Operation speed
250 KIAS
Max demonstrated crosswind for TO
35 kts
Max demonstrated crosswind for landing
32 kts
Max demonstrated crosswind for takeoff and landing on a slippery runway
15 kts
Max tire speed
195 kts GS
Max altitude for flight with flaps/slats extended
15,000 ft
Max runway slopes for TO & L
+2% uphill
-2% downhill
What type of floatation equipment is provided for the passengers?
Seat Cushions
What type of floatation equipment is provided for the FAs?
Life vests located near the FAs jumpseats
How many life vests are in the flight deck?
3 (1 under each pilot seat and to the left of the jump seat)
What is the minimum crew oxygen system pressure for dispatch?
Listed on a chart in the CFM, Ch 4 (Cockpit safety inspection)
What is the full charge pressure of the crew oxygen system
1,850 psi
When will the OXY LO PRESS caution appear on the EICAS?
Below 1,410 psi
When will the crew oxygen system pressure relief occur?
2,800 psi
Where can the crew oxygen system pressure be read?
EICAS status page
Where is the crew oxygen bottle located?
In a compartment just forward of the main entrance.
What is indicated if the green oxygen blowout disc is missing?
Possible overpressure has occurred in the crew oxygen system.
Where are the crew smoke goggles located?
The goggles are either part of oxygen mask or stored under oxygen mask
What supplies oxygen to the passenger oxygen masks?
Chemical oxygen generators
How many passenger oxygen masks are there in each row
2 masks per row on the left side, 3 masks per row on the right side.
How many emergency flashlights are there in the flight deck
2 (One behind the Captain’s seat, and one behind the First Officer’s seat)
What is the power source for the emergency lighting system?
5 battery packs (All emergency light batteries are 6 VDC and located throughout the cabin)
How long will the emergency lights illuminate
if the battery packs are fully charged?
Approx. 10 min
Can the Flight Attendant turn on the emergency lights
if the flight deck switch is off?
Yes
How many passenger emergency exits are there?
6
What doors can be used as emergency exits for passengers?
Main passenger door (type I)
Galley service door (type I)
Overwing emergency exits (type III)
Where are the VHF communication antennae located?
VHF 1 antenna is located on the topside of the fuselage
VHF 2 antenna is located on the underside of the fuselage
Will the flight deck PA override the Flight Attendant PA?
Yes
How are the Flight Attendants contacted in an emergency?
Turn the audio control panel selector knob to PA,
Press the EMER call switchlight.
This will generate a high/low chime in the cabin,
Flash an amber EMER switchlight on the Flight Attendants’ handset cradle
Flash a red light on the mid-cabin, overhead exit sign.
What indication does the flight deck get if a Flight Attendant is calling?
A high/low chime sounds in the flight deck, and either the CALL or EMER
light will illuminate on the center pedestal depending on the selection made
on the Flight Attendant’s handset cradle.
How many Air Data Computers (ADCs) are installed?
2
How many AHRS or IRS computers are installed?
2
In MAG mode, how long does it take the AHRS system to initialize?
30 to 70 seconds
In DG mode, how long does it take the AHRS system to initialize?
10 to 11 minutes
What sends information to the Captain’s flight instruments?
Air Data Computer 1 (ADC1)
What sends information to the First Officer’s flight instruments?
Air Data Computer 2 (ADC2)
What sends pitot-static information to Air Data Computer 1?
Pitot-static probe 1 (P1-S1) on left side of nose.
What sends pitot-static information to Air Data Computer 2?
Pitot-static probe 2 (P2-S2) on right side of nose.
From which source does the integrated standby instrument receive pitot-static information?
Pitot probe 3 (P3) under the left, side window and two static ports (S3) on either side of the lower forward fuselage.
Where is the total air temperature (TAT) probe located?
Under the right, side window.
What is the definition of Total Air Temperature?
Air temperature corrected for compressibility and friction.
On the ground with the probe heat switch selected ON, which air data probes are heated?
All 3 pitot probes are heated at 50% power while their bases remain unheated. NOTE - The angle of attack vanes, and system 3 static ports are heated at full heat. The TAT probe, and pitot bases will always remain unheated on the ground.
Which air data probes are heated in flight with the probe heat switch selected off?
All air data probes and pitot bases are full heated in flight, regardless of the probe heat switch position.
Is there a LOC and GS indication on the integrated standby instrument (ISI)?
Yes - NOTE - The ISI receives navigation data from NAV 1 only.
When will the radio altitude digital readout be displayed?
0 ft to 2,500 ft AGL
When will the green radio altitude tape be displayed?
0 ft to 1,000 ft AGL
When will the yellow hashed rising runway indication
be displayed on the radio altitude tape?
0 ft to 200 ft AGL
What does the speed trend vector indicate?
Predicted airspeed in 10 seconds
When will the MACH readout appear above the airspeed tape?
Appears when accelerating through 0.45 M.
Disappears when decelerating through 0.4 M.
What does the green line on the airspeed tape indicate?
1.27 Vs
Where is the slip and skid indicator located?
A solid rectangle located just under the sky pointer. (The Brick)
How many flight directors are installed?
2
How many autopilots are installed?
1
What provides guidance to the autopilot?
The flight directors.
What controls the flight directors?
Flight Control Computer 1 (FCC1) controls Flight Director 1 (FD1)
Flight Control Computer 2 (FCC2) controls Flight Director 2 (FD2)
Which flight director is the default?
Flight Director 1
What does pressing the XFR button on the flight control panel do?
Transfers the autopilot and flight directors to Flight Director 2
What happens when a TOGA button is pushed on the ground?
The autopilot is disengaged
The lateral and vertical Takeoff modes are activated (TO/TO)
What does the lateral TO mode do?
Updates FMS with current location
Generates a heading hold command at weight off wheels
Limits flight director steering commands to 5° of bank
What does the vertical TO mode do?
Generates an optimized flight director pitch up command
What happens when a TOGA button is pushed in flight?
The autopilot is disengaged
The lateral and vertical Go-Around modes are activated (GA/GA)
What does the lateral GA mode do?
Generates a heading hold command
Limits flight director steering commands to 5° of bank
What does the vertical GA mode do?
Commands the flight director to a 10° pitch up attitude.
Where are the selected lateral and vertical flight director modes displayed?
On the Flight Mode Annunciator (FMA) at the top left of the PFD
Autopilot minimum use heights
600 ft AGL for takeoff or go-around
400 ft AGL for non-precision approaches
80 ft AGL for precision approaches
Autopilot minimum use height for a single engine precision approach?
110 ft AGL
How can the autopilot be manually disconnected?
AP/SP DISC button on either control wheel is pressed
AP ENG button on the FCP is pressed when AP is already engaged
AP DISC switch bar on the FCP is pushed down
TOGA button on either thrust lever is pressed
STAB TRIM manually operated on either control wheel
YD DISC button is pressed
When will the autopilot automatically disconnect?
Both yaw dampers fail
During windshear avoidance procedures
During a stall warning
What type of APU is used on the CRJ 900?
Allied-Signal RE220
What are the priorities of the APU?
Primary: Electrical
Secondary: Pneumatics
Max APU Generator load
40 KVA to 41,000 ft
Max altitude for APU operation for electrical loading
41,000 ft
Max altitude for starting the APU
37,000 ft
Max altitude for APU bleed air extraction
25,000 ft
Max speed with APU door open
220 KIAS if APU not operating
VMO/MMO if APU is operating
What is the minimum battery voltage required before starting the APU?
22 volts on both the Main, and APU batteries
What does the main battery power during an APU start?
The APU ECU
What does the APU battery power during an APU start?
The 28 VDC APU start motor
When will the START portion of the START/STOP switchlight extinguish for the APU?
46%-60% APU RPM
When will the AVAIL portion of the START/STOP switchlight illuminate with the APU?
99% RPM plus 2 seconds
What are the APU Starter limits?
No more than 3 start attempts in one hour.
2 minute delay required between start attempts.
What is the CRJ-900 Powerplant Model Number?
General Electric CF34-8C5
Normal take-off thrust for the CF34-8C5
13,360 lbs
APR thrust rating for the CF34-8C5
14,510 lbs
Max continuous thrust (MCT) for the CF34-8C5
13,680 lbs
Max temperature for takeoff and landing
ISA +40°C, limited to a maximum OAT of 51°C
Min ambient air temperature for takeoff
-40°C
Max Altitude for a windmill start
21,000 ft MSL
Max engine to engine N2 split at ground idle power
2%
How much of the thrust is produced by core air?
Approximately 20%.
How much thrust is produced by by-pass air?
Approximately 80%
How many stages of compression are in a CF34-8C5?
10 stages
What accessories are driven off the N2 accessory gear box?
Engine Driven Fuel Pump IDG Air Turbine Starter Engine Driven Hydraulic Pump Oil Pump FADEC Alternator
What stages of bleed air supply the common bleed air manifold?
Normally 6th stage. 10th stage is available when demand exceeds the
capabilities of the 6th stage.
What allows 10th stage bleed air availability?
Air Conditioning System Controller (ACSC) automatically opens the
High Pressure Valve (HPV).
What is the engine bleed air used for?
Engine start
Air conditioning / pressurization
Wing and cowl anti-ice
What is the minimum bleed air pressure required for a cross bleed start?
42 PSI at a maximum of 80% N2 for the operating engine
What is the normal air source used for engine starting?
APU bleed air
What source is used for engine starting if the APU is INOP or shut down?
A ground air cart, or high-pressure bottle may be attached to the external
high pressure, ground air supply connection.
Cross bleed starts from an operating engine may be used to start the other
engine.
Where is the high pressure, ground air supply connection located?
On the fuselage, aft of the aft cargo bay door.
When will the starter cut-out during an engine start?
50% N2 RPM
What are the engine starter cranking limits?
Attempt 1-2: 90 sec ON / 10 sec. OFF
Attempt 3-5: 90 sec ON / 5 min. OFF
What are the Dry Motoring limits?
Attempt 1: 90 sec. ON / 5 min. OFF
Attempt 2-5: 30 sec. ON / 5 min. OFF
