General Flashcards
What doors does the CRJ 900 have
Main passenger door Galley service door (no stairs) Avionics bay doors Two FWD cargo bay doors Aft cargo bay door Aft
Emergency exits
6 exits plus one cockpit escape hatch
Main passenger door (Non-plug, type 1 doors)
Galley service door (Semi-plug, type 1)
4 wing emergency exits, 2 on each side (Plug, type 3)
-Only 2 on the CRJ 700
Plug type door
Opens inward. Pressurization keep the door in place.
Non-plug type door
Opens outward. Only latches keep the door from being pushed outward by differential pressure.
Semi-plug type doors
Mixture of plug and non plug
Type 1 exit doors
Big doors, level floor with no major steps (14 CFR 25.8070
Type 3 exit doors
Smaller. May have big steps up or down (14 CFR 25.807)
Main passenger door limitations
Max load capacity = 1000lbs
Max people on stairway = 4
4 locking pins (2 on each side)
2 upper latching cams
What is the box in the middle of the main door?
It’s a pressure relief flap to relief positive pressure inside the aircraft
What’s the wheel on the main door called?
Door support/assist wheel. It’s what causes the 1000lb weight limitation. This item is NOT in the MEL and cannot be deferred.
What holds the hand railing on the main passenger door in place?
There’s a locking pin that must be pushed all the way through. To put down the railing you have to pull the pin. Common test question.
Why are the main passenger doors painted
…
What are the green witness marks on the door for?
By aligning the green witness marks with the the interior green paint, it assures that the doors is positively latched. Additionally the DOORS page on the EICAS will tell you the condition of the doors
What kind of door is the cockpit emergency exit?
It’s a plug type door with an emergency rope
Galley service door
Type 1, semi-plug type door. No stairs. Has a silver hook that keeps the door open.
Over wing exit door
Plug type door. Has a lifeline with a caribeener. Not an MEL item and cannot be deferred.
Avionics bay door
Plug type door. You open this door on the outside but it moves inward and along rails. Allows maintenance people to access the avionics for fixes.
Aft cargo bay door
Plug type door, runs along tracks
Forward cargo doors
Semi-plug type door. Has pressure relief flap. All cargo areas are pressurized but only the aft compartment is air conditioned
Cargo limitations
Aft limit: 4375lbs
Forward limit: 850lbs
Aft: 75lbs/sqft
Forward: 30lbs/sqft
Aft equipment bay door
Located on the bottom aft fuselage. Unpressurized. Ventilated continuously. Outflow valve is next to the door.
Flight deck door
- Prevents unauthorized access
- Supposedly bulletproof
- Locks via a slide lock
- At each corner there’s a deadbolt knob which is used during lockdowns. Not used during normal ops as the door may become impossible to open again without maintenance.
EICAS door synoptic page
Shows the position of all doors. Doors are green when closed and locked. All doors are amber (caution) when open except the main passenger door which is red (warning)
Depressurization blowout panel
Allows the cabin to equalize to the pressure in the aft cargo bay during a depressurization
Correct seat placement
In the middle of the windscreen next to the compass, there are three dots. A white middle dot surrounded by two orange dots. You want to sit at the height where the three dots are aligned and can see over the glare shield.
Speed limitations
VMO = 335kias MMO = 0.85 (0.82 in RVSM) VFE 1º/8º = 230kias VFE 20º = 220kias VFE 30º VFE 45º VLO extension VLO retraction VLE Tire = 195kgs Vmax ADG deployment = Turbulence penetration speed = 280kias/0.75mach Vmax wiper = 250kias
What’s the most common flap setting to over speed?
30º
CRJ 900 max ramp weight
82,750lbs
CRJ900EP max ramp weight
85,000lbs
CRJ900 Max takeoff weight (MTOW)
82,500lbs
CRJ900EP max takeoff weight
84,500lbs
CRJ900 max landing weight (MLW)
73,500lbs
CRJ900EP max landing weight (MLW)
75,100lbs
CRJ900 max zero fuel weight (MZFW)
70,000lbs
CRJ900EP max zero fuel weight
70,750lbs
Minimum flight weight
45,000lbs
Max cargo bay aft capacity
4,375lbs (no more than 75lbs/sqft)
Max forward/center cargo bay capacity
850lbs (no more than 30lbs/sqft)
Max pressure refueling capacities
Total 19,594lbs
Mains (2) 7,492lbs each
Center 4,610lbs
Max gravity refueling capacities
Total 14,810lbs
Mains (2) 7,405lbs
Center N/A
Max aft cargo bay capacity (900EP)
3,740lbs
900 and 900EP wingspan
900 = 76’3” 900EP = 81’6”
Height of tail
24’1”
Turning radius (minimum pavement width)
80’1”
Minimum obstacle clearance for 180º turn
126’5”
Aircraft Length
118’11”
Horizontal stabilizer width
28’4”
Main landing gear to main landing gear center width
13’6”
Maximum operating airspeed (VMO)
335KIAS
Maximum operating Mach number (MMO)
0.85 (0.82 in RVSM airspace)
1º extension speed
230kias
8º extension speed
230kias
20º extension speed
220kias
30º extension speed
185kias
45º extension speed
170kias
Max landing gear extension speed (VLO)
220kias
Max landing gear retraction speed (VLO)
200kias
Max landing gear extended speed (VLE)
220kias
Max turbulence penetration speed
280kias or 0.75M whichever is slower
Maximum operating altitude
41,000’
Max airport pressure altitude for takeoff and landing
8000’
Max demonstrated crosswind for takeoff
35kias
Max demonstrated crosswind for landing
32kias
Max demonstrated crosswind for takeoffs and landings on a slippery runway
15kts
Max tailwind for takeoff and landing
10kts
Max tire speed
195 knots groundspeed
Max altitude for flight with flaps/slats extended
15,000’
Max runway slopes for takeoff and landing
+/- 2º
What type of flotation device is provided for the passengers
Seat cushions
What type of flotation device is provided for the flight attendants
Live vests located near the flight attendants jump seats
How many life vests are located in the flight deck?
3, one under each pilot seat and one to the left of the jump seat.
What is the minimum crew oxygen system pressure for dispatch?
Listed in a chart in the CFM, chapter 4 (cockpit safety inspections)
What is the full charge pressure for the crew oxygen system
1850psi
When will the OXY LO PRESS caution appear on the EICAS?
Below 1410psi
When will the crew oxygen system pressure relief occur?
2800PSI
Where can the crew oxygen system pressure be read
On the STATUS page of the EICAS
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 the 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 each pilot seat.
What is the power source for the emergency lighting system?
5, 6vdc, battery packs located throughout the cabin. Each one powers a different section.
How long will the emergency lights illuminate if the battery packs are fully charged?
Approximately 10 minutes
Can the flight attendants turn on the emergency lights if the flight deck switch is turned off?
Yes. The have a separate switch near the cabin door.
How many passenger emergency exits are there?
6
Which doors can be used by passengers as emergency exits?
Main passenger door (type 1)
Galley service door (Type 1)
Overwing emergency exits (type 3)
Where are the VHF communication antennae located?
VHF 1 is located on the top of the fuselage
VHF 2 is located on the bottom side of the fuselage
VHF 3 is located on top of the fuselage further aft then VHF 3
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 knob to PA
- ) Press the EMER call light switch
- This will create a high/low chime in the cabin, flash an amber EMER switchlight on the FA’s handset cradle, and flash a red light on the mid-cabin, overhead exit sign.
Which indication does the flight deck receive if a FA 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 FA’s handset cradle.
How many Air Data Computer’s 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?
30-70 seconds
in DG mode how long does it take the AHRS to initialize?
10-11 minutes
What sends information to the captains flight instruments?
ADC 1
What sends information to the FO’s flight instruments?
ADC 2
What sends pitot-static information to ADC 1?
Pitot-static probe 1 (PS-1) on the left side of the nose.
What sends pitot-static information to ADC 2?
Pitot-static probe 2 (PS-2) on the right side of the nose
From which source does the integrated standby instrument receive pitot-static information?
From PS-3 under the left side-window, and 2 static ports (S3) on either side of the lower, forward fuselage
Where is the total air temperature probe located?
Under the right, side window
What is the definition of total air temperature (TAT)?
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-heads are heated at 50% power while their bases remain unheated.
Which air data probes are heated in flight with the probe heat switch selected off?
All probes are heated regardless of switch position in flight
Is there a LOC and GS indication on the Integrated Standby Instrument?
Yes, but know that the ISI recieves nav data from NAV 1 only
When will the radio altitude digital readout be displayed?
0-2500’AGL
When will the green radio altitude tape be displayed?
0-1000’AGL
When will the yellow hashed rinsing runway indication be displayed on the radio altitude tape?
0-200’AGL
What does the speed trend vector indicate?
Predicted airspeed in 10s
When will the MACH readout appear above the airspeed tape?
Appears when accelerating through 0.45M and disappears slowing through 0.4M
Where is the slip and skid indicator located?
A solid rectangle under the sky pointer
