Aircraft General Flashcards
1
Q
How many pallet locations are there?
A
12, 11 if an engine is loaded
2
Q
What is the wingspan (800)?
A
117’5”
3
Q
What is the length (800)?
A
129’6”
4
Q
What is the tail height (800)?
A
41’2”
5
Q
What is the required turn radius (in feet) for a 180 degree turn?
A
79.7 ft
6
Q
What is the largest obstacle from the turn point?
A
Wing tip - 75.3 feet.
7
Q
What is the steering angle?
A
78 degrees
8
Q
What is the effective turn degree?
A
75 degrees
9
Q
What is located on the Control Stand?
A
Forward Electronics Panel, Thrust Lever Quadrant, and AFT Electronics Panel
10
Q
Which windows can be opened?
A
#2 windows (move inward and aft when opened) Window 2L and 2R can be opened from inside. Window 2R can also be opened from the outside.
These are the flight deck emergency exits! Escape straps are provided for each window.
11
Q
Which cockpit windows are electrically heated?
A
All 6 of them.
12
Q
How to position pilot seat?
A
Adjust to see along the top of the glareshield to the aircraft nose then:
sight over the control column until the bottom of the outboard display is visible then:
sight under the lightshield to view the A/P - A/T -FMC lights panel.
13
Q
What happens when the correct code is entered on the Flight Deck Emergency Access Panel (located on the supernumerary side of the flight deck door)?
A
A chime sounds. A red light means the door is locked.
Amber means the correct code was entered.
Green light means the door is unlocked.
14
Q
What happens when the Flight Deck Access Switch is positioned to OFF?
A
Electrical power is removed from the door lock. (Switch should be in the NORM position during flight).
15
Q
When will the LOCK FAIL light illuminate on the Flight Deck Door Lock selector?
A
When the Flight Deck Door Lock selector is in AUTO and the door lock has failed.
Or when the Flight Deck Access System switch is OFF.
16
Q
When will the AUTO UNLK light illuminate on the Flight Deck Door Lock selector?
A
When the correct code was entered in the keypad. The light flashes and a continuous chime sounds until the time expires. If no action is taken by the crew, the door unlocks.
17
Q
What is the default position of the FLT DK Door Lock selector?
A
AUTO (spring loaded to AUTO)
18
Q
What happens when the position of the FLT DK Door Lock selector is rotated to UNLK?
A
Unlocks the flight deck door.
19
Q
What happens when the position of the FLT DK Door Lock selector is rotated to DENY?
A
Rejects the keypad code and prevents further code entry for a time period (several minutes).
20
Q
How many cargo compartments are there?
A
3: Main deck, Forward Lower, Aft Lower
21
Q
Explain the compartment doors
A
Plug type, hinged at the top, open inward, can be operated from inside or outside the aircraft. Each door has 4 latches (2 locking) and a balance mechanism which allows the door to be opened with little effort until it engages the mechanical lock. Bungee lanyard is used to lower the door.
22
Q
Are the lower compartments pressurized or non-pressurized? Are they sealed? Why or why not?
A
Pressurized. And sealed (no fresh air circulation or temperature control). Compartment pressure is maintained nearly equal to the cabin by pressure equalization valves in the aft bulkhead of each compartment. The valves only let enough air flow into or out of the compartments to keep the pressures nearly the same as cabin pressure.
The lower cargo compartments are Class C: designed to completely confine a fire without endangering the safety of the airplane or its occupants.
23
Q
What protects the aircraft in event of a rapid depressurization?
A
Blow out panels installed in the compartments provide pressure relief at a greater rate than the pressure equalization valve in case the airplane pressurization is lost.
24
Q
The Main Deck Cargo Door is operated by which system?
A
opened with a hydraulic actuator powered from Hydraulic System A. Hydraulic power may be supplied using either a hydraulic ground cart or the aircraft’s electric motor pump.
The cargo door can be opened manually using a pump to supply hydraulic pressure for the actuator.
25
How many locking pins in the Main Deck Cargo Door?
8
26
Which cargo positions can be modified for engine carriage?
P5 and P6
27
What appears in the 8 viewing windows to verify the Main Deck Cargo Door is locked?
The yellow half circles appear as full circles.
28
If the Main Deck Cargo Door is not properly secured, what prevents pressurization?
The vent door prevents pressurization to an unsafe level.
29
What 3 positions are there on the Main Deck Cargo Door?
Closed, Full Open, and Door Canopy position
30
Do not operate System A and B electric pumps more than ___ minutes unless the #1 and #2 Fuel Tank contains at least ______ pounds of fuel.
2 minutes, 1,675 lbs of fuel (250 gallons).
31
Do not operate the Main Deck Cargo Door (MDCD) in winds more than _____ knots.
Do not let the MDCD stay open in winds more than _______ knots.
40 knots
60 knots
32
Describe MDCD operation.
Observe the "Locked" and "Closed and Latched" lights are on.
Move and hold the LOCK/UNLOCK switch to UNLOCK until the READY TO OPEN light illuminates (blue).
Then hold the ARM switch in the ARM position and the CLOSE/UP TO CANOPY switch to UP TO CANOPY. (The IN TRANSIT light will illuminate until the canopy position is reached. When the door is in the canopy position, the OPENED light illuminates (blue) and the IN TRANSIT light extinguishes.)
If the full open position is needed, the ARM switch is held in the ARM position and the FULL OPEN/DOWN TO CANOPY switch is held to FULL OPEN until the door reaches the full open position (movement stops). **When in this position, only the UNLOCKED and OPENED lights are illuminated.
If the control switch is released before either the canopy or full open position is reached, the door hydraulically locks in that interim position
In addition to this hydraulic locking feature (internal ram lock), mechanical locks extend to hold the door in the canopy position (approximately 88 degrees) if hydraulic pressure is lost. The main cargo door must be commanded to close in order to release the ram lock.
Note: Door is electrically unlatched and hydraulically opened.
33
Do not leave the MDCD open in the canopy position unattended when using a?
hydraulic ground cart.
34
Describe MDCD closing operation
Observe the "Unlocked" and "Open" lights are illuminated.
If the door is in full open position, hold the ARM position and the FULL OPEN/DOWN TO CANOPY switches down until the canopy is reached. (The IN TRANSIT light will illuminate until the canopy position is reached. When the door is in the canopy position, the OPENED light illuminates (blue) and the IN TRANSIT light extinguishes.)
Then hold the ARM switch in the ARM position and the CLOSE/UP TO CANOPY switch down until the CLOSED & LATCHED light illuminates.
Then hold the LOCK/UNLOCK switch to LOCK until the green LOCKED light illuminates. Once the door is closed, only the LOCKED and CLOSED & LATCHED lights should be illuminated.
35
How will we know if a cargo door is not closed and latched?
The associated door light on the overhead panel and the MASTER CAUTION lights and the DOORS system annunciator light will be on (FO side).
36
How many micro switches monitor the closed and locked status of the MDCD?
4. In addition, 2 proximity switches monitor the latched status of the door.
37
What continuously monitors the switch outputs to determine MDCD status?
The PSEU. It also compares switch outputs when the door is cycled open or closed to determine if any switches have failed.
38
If the PSEU detects a latent switch failure subsequent to door operation, what happens?
The MASTER CAUTION illuminates, the OVERHEAD annunciator light, and PSEU illuminates amber following Master Caution recall. If takeoff thrust has been set on one or both engines, the Takeoff Config warning horn sounds.
39
What causes the Takeoff Config warning horn to sound?
If the PSEU detects a latent switch failure subsequent to door operation, takeoff thrust has been set on one or both engines. (See chart on Cargo Compartments CPAT page 17 of 23).
40
Will the lower compartments support a fire? Why or why not?
No, they are not ventilated and will normally not support a fire. (See the Fire Detection and Protection system.)
41
Where are the retractable landing lights located?
Where do they shine?
Lower fuselage near the air conditioning pack cooling air inlets.
Shine forward, parallel to the waterline of the airplane.
42
What are the possible positions of the RETRACTABLE landing lights?
What is the airspeed restriction on operating these lights?
Retracted and off.
Extended and off.
Extended and on.
There is NO airspeed restriction on light operation.
43
Where are the INBOARD landing lights located (AKA Fixed Landing Lights)?
Outboard of the Runway Turnoff Lights in the leading edge of the wing, inside an aerodynamic contoured glass window.
44
Where are the Runway Turnoff Lights located?
What is their purpose and where do they shine?
Most inboard position of the leading edge of the wing, inside an aerodynamic contoured glass window.
They shine outward and their purpose is to provide visibility during a taxi turn.
45
Where is the taxi light located? Does it turn when the nose gear is turned?
Located on the nosewheel strut and turns with the nosewheel.
46
Will the taxi light turn off automatically when the nose gear is retracted?
No
47
Where is the logo light located?
On each horizontal stabilizer, illuminates the logo on the vertical stabilizer.
48
Where are the position lights located?
How many?
Located on the wing tips and tail cone.
3 position switch: White strobes, steady white lights, and steady colored lights.
Steady: Red (front left, base of the winglet) and Green (front right, base of the winglet), and 2 white lights on trailing edge, at the base of each winglet illuminate steady.
Strobe & Steady; Steady: Same as above, but additional white lights on the front of each winglet and on the tail cone just above the APU exhaust oulet: strobes flash about once per second.)
49
If there is no other power on the aircraft, the STEADY position of the POSITION STROBE & STEADY/STEADY light will power what?
The appropriate lights from the Battery bus power.
Note: the battery switch must be ON!! (This is a useful feature for towing.)
50
Where are the anti-collision lights located?
When are they used?
They are the red flashing strobe lights on the upper and lower fuselage, strobes flash about once per second, controlled by the 2-position Anti-Collision light switch.
They are used before engine start or before aircraft is moved to provide alert of the potential hazard to ground personnel.
51
Where are the wing illumination lights located?
What are they used for?
Just forward of the wing on the fuselage.
Used for wing inspection of the leading edges prior to takeoff during icing conditions. Can also be used to provide lighting for ground services of the aircraft.
52
When are Wheel Well lights used?
Will they operate on the ground or in flight?
Turns on all lights in all 3 wheel wells. Note: there are external switches that operate these as well.
Both. Switch operates on the ground or inflight.
53
Explain the Wheel Well lights
There is a 2-position switch in the cockpit that turns on/off all 3 wheel well lights either on the ground or inflight. There are also 2 external switches that can control the Wheel Well lights, 1 for the main gear wheel well 1 for the nose gear wheel well.
54
Where is the Nosegear Wheelwell light and how does it operate?
The switch is located on the External Power Receptacle. If the external switch is "ON", the flight deck control switch CANNOT turn off the Nosegear wheel well light. When the external switch is at "Normal", the flight deck switch is the master.
55
Where is the exterior switch for the Main Wheelwell lights located?
In the Forward portion of the Left gear well. If the external switch is "ON", the flight deck control switch CANNOT turn off the Main Gear wheel well lights. When the external switch is at "Normal", the flight deck switch is the master.
56
Where is the Dome light located?
Where does it receive power?
Center of the Aft Overhead control panel. 3-position switch: Dim, Off, Bright
These lights operate from the Battery Bus, so they are available just after you turn on the Battery Switch.
Note: The Aft Dome light contains a separate bulb that is powered by the Emergency Lighting System. This light provides illumination for the crew during evacuation.
57
The PANEL knob on the Forward overhead adjusts the ?
adjusts the integral panel lighting on the forward and aft overhead control panel.
58
The PANEL knob on the Aft Electronics Panel adjusts the ?
adjusts the integral panel lighting on the forward and aft Electronics panel.
59
The FLOOD knob on the Aft Electronics Panel adjusts the ?
spot light that shines on the throttle quadrant.
60
On the Captain's side, the BACKGROUND knob controls?
the fluorescent lighting on the Captain's instruments, Center instruments, and FO's instruments.
61
On the Captain's side, the AFDS FLOOD knob controls?
the flood light intensity on the Automatic Flight Director System Control panel (autopilot center section of the MCD).
62
How do map lights?
Located on each pilot's sidewall panel, push down or pull the knob to cycle the map light on or off, then rotate the knob to control the brightness.
63
The PANEL knob on the Captain's panel will adjust the integral lights in?
The Captain's, Center Instrument, and AFDS mode panel edge lighting.
64
The PANEL knob on the FO's panel will adjust the integral lights in?
The FO's Instruments.
65
Does the Battery Bus power the Magnetic Compass?
No, only the Standby Magnetic Compass light.
66
Where is the position light switch for the Standby Magnetic Compass light located?
On the compass correction card holder.
67
If normal electrical power is lost (when on Standby power), which lights are still available via the Battery Bus?
The Standby Compass light
Dome lights
Instrument Flood lights (FLOOD and PANEL)
System Information and Warning lights (Fire Warning, MASTER CAUTION, all annunciator lights).
68
How do we test the majority of the flight deck lights?
There is a 3-position switch on the Captain's center instrument panel.
*Note: With the switch in the TEST position, the Recall feature of the MASTER CAUTION system will NOT operate and all segments of the Autopilot Flight Director Mode Control Panel will constantly flash.
Also, NAV/COM radio frequencies, Transponder Code, Clock LCD, Fire Warning, AutoThrottle and FMC Warning, and MCP Panel ON lights do NOT illuminate when this switch is in the TEST position.
69
Can the supernumeraries reset the Don Oxygen Masks sign and audible horn sound?
Yes
70
What does it mean when the lights flash in the Main Deck Cargo compartment?
Occupants must return to their seats.
71
What does it mean when the warning horn sounds in the Main Deck Cargo compartment?
Occupants must don portable oxygen masks and return to their seats.
72
When does the alerting system consisting of warning horns and flashing lights installed in the main deck cargo compartment activate automatically?
Depressurization, when the decompression aneroid reaches 14,000 feet, +/-350 feet.
Smoke/fire detection, when the flight crew manually depressurizes the Main Deck during a Main Deck smoke event.
73
How can the flashing lights in the main deck cargo compartment be manually activated, during turbulence for example?
For how long will they flash?
by selecting the FASTEN SEAT BELTS switch to ON.
main deck ceiling lights will flash for 30 seconds.
74
How do you reactivate the main deck cargo alerting system (lights and warning horns)?
The flight crew can do so with the Passenger Oxygen Switch.
75
When the FASTEN SEAT BELT switch is in AUTO, when will the FASTEN SEAT BELT and RETURN TO YOUR SEAT signs illuminate?
When either the flaps or gear are extended. (If the gear and flaps are not extended, these signs remain extinguished.)
76
When the Ground Service bus is powered, what is available and how is it controlled?
most of the cabin lighting is available, and is controlled by the Attendant panel. (A switch allows external power to be applied to the Ground Service Bus.)
77
How does the dome light in the lavatory operate?
operates on Battery bus power.
78
How are the emergency exit lights powered?
all lights are powered by individual Ni-cad batteries with a charging, monitoring and voltage regulator circuit.
79
How are the Ni-cad batteries charged?
They are all charged by the 28-volt D.C Bus #1. Note: The Emergency Evacuation System is powered by the 28V DC hot Battery Bus.
80
What causes the Emergency Exit lights to illuminate automatically?
With the system Armed, if the DC Bus #1 fails or if the AC power used to generate this DC Bus power is turned off.
81
How long will the Emergency Exit lights last?
about 20 minutes
82
If the Emergency Lights switch is in the OFF position, what will happen?
the Emergency Exit Lights system is deactivated and the NOT ARMED light illuminates to alert the crew. (However, if power is available, the batteries continue to charge even when the switch is OFF.)
*Note: the OVERHEAD system annunciator light and the MASTER CAUTION lights illuminate as well (any time the NOT ARMED light illuminates)
83
If the Emergency Lights switch is in the ON position, what will happen?
the Emergency Exit Lights will illuminate and the NOT ARMED light illuminates to alert the crew.
*Note: the OVERHEAD system annunciator light and the MASTER CAUTION lights illuminate as well (any time the NOT ARMED light illuminates)
84
Where are the oxygen cylinders located for the flight crew and supernumerary cabin?
There are 2 oxygen cylinders located on the ridged cargo barrier wall in the supernumerary cabin.
85
When will the Crew Oxygen bottle pressure gauge display the pressure?
With the Battery switch ON.
86
What is the normal charge of the oxygen bottles?
1850 psi, but charts in the FCOM Performance Dispatch chapter specify minimum pressure required for dispatch, depending on temperature and the number of crew using the bottle.
87
What type of mask do the pilots have for oxygen?
Quick-donning diluter demand mask-regulator for each pilot and each jumpseat occupant.
88
When the pilot oxygen mask is in the NORM position, what oxygen is delivered?
the delivered oxygen is diluted with ambient cabin air.
89
How do we know when oxygen flows to the mask?
a yellow cross displays in the Oxygen Flow indicator.
90
When the pilot oxygen mask is in the EMERGENCY position, what oxygen is delivered?
100% oxygen under positive pressure at all altitudes. This mode also purges contaminants from the mask and removes condensation or fogging from the interior of the mask lens.
91
What happens when you remove the oxygen mask from the stowage box?
flow of oxygen initiates
92
Which oxygen regulator setting is normally used for dispatch?
100%, for both the flight deck crew as well as the supernumeraries.
93
What type of oxygen masks do the supernumeraries have?
Demand masks, oral-nasal mask type, but they use the same two oxygen cylinders as the flight desk masks.
94
Where are the supernumerary oxygen masks located?
Under each supernumerary seat.
95
How and when is oxygen in the lavatory provided?
The PSU located above the lavatory. The PSU doors/panels open when the solenoids are electrically activated to open (when the cabin altitude reaches 14,000 feet, a pressure switch should automatically activate the PSU door solenoids.)
Whenever the PSU solenoids have been powered to open, the PASS OXY ON light illuminates (on the overhead panel next to the PASS OXYGEN guarded switch, maintenance can reset). The OVERHEAD system annunciator light and MASTER CAUTION lights illuminate as well.
The pilot may open the guard and move the spring-loaded switch to the ON position if the PSU doors do not open at 14,000 ft cabin altitude.
96
What happens when a pilot opens the guard and moves the spring-loaded switch to the ON position if the PSU doors do not open at 14,000 ft cabin altitude?
The PSU door solenoids are activated (not necessarily open), the PASS OXY ON light illuminates (on the overhead panel next to the PASS OXYGEN guarded switch, maintenance can reset). The OVERHEAD system annunciator light and MASTER CAUTION lights illuminate as well.
97
What type of masks are in the lavatory and how do they work?
Drop down Continuous Flow type with a reservoir bag.
There are 2 valves on the front of each mask, which allow ambient cabin air to be drawn into the mask along with a small amount of oxygen being added to the air through these valves.
*Note: Because cabin air is mixed with oxygen from the generator, you should NEVER use this mask when the cabin is filled with smoke!! Also, do not use passenger oxygen with cabin altitude below 14,000 feet when smoke or an abnormal heat source is present.
98
How does the canister generate oxygen?
Can it be shut off?
There is a lanyard attached to a safety key (that stops the firing pin from striking the ignitor). When the mask is pulled down, the lanyard pulls the safety key out, the firing pin will snap down on the ignitor and oxygen will flow to the mask (chemical process generates the oxygen).
No, there is no way to shut off the generator after the ignitor has been activated.
99
How long will the canister generate oxygen, and what does it smell like?
How do we know oxygen is flowing?
About 12 minutes.
May smell like scorched cloth due to the temperature of the generator canister.
There is a green in-line flow indicator visible in the transparent oxygen hose whenever oxygen is flowing to the mask.
100
What is the normal charge of the portable oxygen bottles, and how many masks will they accept?
One regulates flow a 2-liters per minute, one regulates flow at 4-liters per minute. Why?
1800 psi.
Each bottle will accept 2 continuous flow masks (there are 2 continuous flow outlets).
- the 2-liters per minute is for walk-around
- the 4-liters per minute is used for first aid.
101
What do you need to carry with you when accessing the deck cargo compartment in flight?
An oxygen bottle and mask.
102
Ways to emergency exit?
Through either the forward Entry or Service doors, or through the sliding flight deck windows.
103
Where are the life vests located?
Where are the rafts located?
Under each seat for each occupant.
Rafts: 2 in the supernumerary cabin and 1 on the flight deck.
*Note: although the slides are not certified as life rafts, they are buoyant and may be used for flotation when disconnected from the aircraft (The Slide Detachment Handle is located at the top of the slide).
104
How do we disarm the slide?
Remove the Girt Bar from the floor clips and clip them in the door clips.
105
How do you Arm and Disarm the door?
What happens if a door is not closed and locked?
Arm: Close the door. Place the Girt Bar Warning Flag in the warning position (clearly visible to anyone outside). Remove the Girt Bar from the door storage hooks and fasten to floor brackets.
Disarm: Unfasten the Girt Bar from the floor brackets and place in the door storage hooks. Place the Girt Bar Warning Flag in the stowed position (NOT visible to anyone outside). Advise Captain once BOTH entry doors are disarmed. Captain will say "Doors disarmed, cleared to open", the FO will acknowledge and say "Cleared to open" and open the entry door(s).
If the door is not closed and locked, the Forward and Aft ENTRY and SERVICE lights illuminate, and the DOOR system annunciator and MASTER CAUTION lights also come on.
106
How to we inflate the slide?
It will inflate automatically if the Girt Bar is in the floor clips when the door is opened. If it fails to inflate automatically, there is a PULL TO INFLATE handle for manual slide inflation.
107
What is potable water used for?
To flush the toilets, as well as the galley and lavatory sink.
108
Where is the water tank located?
How is it pressurized?
Can the water system be used without an active pneumatic system? Why or why not?
A single tank located below the cabin floor and behind the aft cargo compartment (way in the back, same place it gets serviced).
It is pressurized by the pneumatic system normally (engine bleed air), but an AC motor driven compressor automatically activates is pneumatic pressure drops below a preset value to maintain water pressure.
Yes, the AC motor driven compressor allows water system usage without an active pneumatic system.
109
Where is the water valve?
Below the sink in the lavatory. It is 4-position: ON (to the sink and toilet flushing), OFF, Faucet Only, and Toilet Only.
110
Where is the water heater?
How do we know when it's working?
What happens if it gets too hot?
How quickly can it heat a new water charge?
Installed in the supply line to the lavatory sink hot water outlet.
The heater has an amber light that illuminates when it is operating normally. Maintenance uses a control switch to turn the heater on or off.
If the heating element gets too hot, an Overheat Protection Circuit turns off the heater (overheat swi.
When emptied, it heats a new water charge in 4 minutes.
111
Where does waste drain water from the galleys and sink evacuate?
Through electrically heated forward and aft drain masts (there are 2 drain masts).
112
How does the toilet flushing system operate?
How is Differential Pressure Generated for flushing?
There are 2 valves - a Rinse valve and a Flush Valve.
The Rinse Valve allows a measured volume of potable water to rinse the bowl, while the Flush Valve opens to allow the bowl contents to move through the vacuum drain line into the waste tank. Thus, a combination of Rinse Water and Differential Pressure is used to flush the toilet.
Differential Pressure is created by keeping the waste tank pressure LOWER than the cabin pressure:
- Below 16,000 feet: air pressure is evacuated from the waste tank by operation of a vacuum blower that keeps the tank pressure lower than the cabin pressure.
- Above 16,000 feet: The operation of the vacuum blower is NOT required due to cabin differential pressure.
113
What happens if a Flush Valve fails to close after flushing?
What should you do? And how?
The cabin pressure will continuously escape overboard.
The Flush Valve can be closed manually by use of a handle located at the bottom of the toilet assembly through a cutout in the shroud.
114
How many quantity level sensors are in the Waste Tank?
What happens if the tank level is full?
2
If the tank level is full, the toilet Rinse and Flush Valves are disabled.
115
How is the Waste Tank emptied?
There is a drain valve on the waste service panel, located on the aft lower fuselage. After the tank is drained, it is rinsed by water through 2 nozzles in the top of the tank. This rinse action should also clean the tank quantity level sensors. Of course, a chemical precharge is added to the waste tank after the tank is rinsed (blue).
116
Where is the Water Quantity and Waste System display located?
What will happen if either waste level sensor is dirty?
Located on the Attendant Panel. Quantity is continuously displayed for the Potable and Waste Water tanks.
If either waste level sensor is dirty, the CLEAN/CHECK SENSOR light comes on. Since contaminated level sensors can shut down the operation of the flushing system, the level sensors are normally cleaned when the waste tank is emptied and flushed.
117
Where is the Water Service panel located?
What will happen if the panel door is open?
On the bottom right side of the aft fuselage. Pressure filling is required.
If the panel door is open, the electric powered compressor is disabled.
With the water hose connected, opening the fill and overflow valve vents tank pressure and allows water to fill the tank and come out the overflow. A Drain Valve handle is provided to drain the water tank. *Both the Drain Valve and the Fill and Overflow Valve handles must be closed to allow the panel to close.
118
How long does the Protective Breathing Equipment (PBE/Smoke Hood) provide oxygen?
approximately 15 to over 20 minutes of oxygen.
119
What happens to the flight deck door if pressurization is lost?
The door incorporates 2 pressure sensors that unlock the decompression panels if pressurization is lost. The decompression panels have manual release pins. Pulling the pins frees the panels allowing egress in the event the door is jammed.
120
How can we emergency evacuate?
Through the forward entry and service doors, as well as through the 2 sliding flight deck windows.
Note: The aft entry and service doors as well as all four Type III overwing emergency exits are deactivated and are not available for use.
121
Explain the electricity for the galleys
115V AC, supplied from the airplane transfer buses and controlled by a switch on the overhead panel.
Circuit breakers are located in the lower E/E bay as part of the power distribution panels.
122
Where are the water shutoff valves located?
What are these used for?
What is the normal position?
located on each galley and below the sink in each lavatory.
The drain position of this valve is used to drain all water overboard.
Normally, the drain shutoff valves are ON.
123
What is the forward limit of the Main Electric Trim range with the flaps retracted?
3.95 units
