What powers the fire detection for the engines and the APU
The essential buss
What powers the engine and APU fire protection
Engines are powered by the hot bus, APU on essential 2
How is fire detection accomplished on the engines and APU
Fire loops
How does a fire loop work
It is a sealed tube with helium in it and an inner tube with hydrogen. The tube will keep constant pressure on an integrity switch to see if the tube has been ruptured, i.e. if very intense fire has cut through it. The tube also has an alarm switch that w
How is fire detection for the lav and baggage compartment accomplished
With smoke detectors
How many fire loops does the APU have
One
How many fire loops do the engines have
Two, one around the engine and one in the pylon
If you get a fire alarm for an engine or APU and then a short time later it goes out and you have a fire detect fail, is there a fire?
Yes, the fire burned through the fire loop
Where does the engine fire extinguishing agent spray
Between the shroud and the nacelle
If fire extinguishing for the engines or the APU is not successful are there any other fail safes to keep the fire from spreading
They are designed to burn and fall of the plane
What is the main difference between "Engine fire, severe damage, or separation" and "engine precautionary shutdown
On the precautionary shutdown we do not pull the handle because we MAY try to restart it later
How many engine fire bottles are there
Two
What are the time limitations on the fire detection test and what happens if they are exceeded
3 - 10 seconds
- Less than 3 seconds and the bag fire light may stay on
- More than 10 seconds and the APU will think it's on fire and shutoff
If the plane is in ground safe mode and you come back and the APU is on fire, would the APU fire extinguishing button work, why or why not?
No. The APU fire bottle is on essential 2. When the APU senses a fire it will shutdown, so essential 2 would no longer be powered
Can firing the baggage fire bottle cause any detection errors
Yes, the extinguishing agent can be detected as smoke
Where doe the lavatory fire extinguisher discharge to
The waste bin
How does the lavatory fire extinguishing system work
It is automatic. Heat will melt a plug in the fire extinguisher releasing the agent
How many fire bottles does the baggage compartment have
Two, one rapid discharge and one metered bottle
How long will the metered bottle in the baggage compartment last
50 minutes
What chemical is in the fire extinguishers
Halon, except for one water bottle on the XR
How many walk around fire bottles do we have
Three
How does the baggage fire detection work
When the smoke detector detects smoke it will do a few things.
- Send an EICAS message
- Light the bag smoke light
- Send a signal to shutoff the baggage compartment fan
What should you ensure before firing the bag fire bottles
There is a bag fire light AND and EICAS. If you only get the light, do not fire the bottle
Why will the baggage fan turn off when smoke is detected
To seal the compartment so the extinguisher isn't evacuated
What does pushing the baggage fire extinguisher button do
- Sends another signal to turn off the baggage fan
- Fires two bottles in sequence
--- High discharge fire bottle
--- Metered flow fire bottle
In what form is the crew oxygen supplied
Gaseous
Where should the temperature for the crew oxygen level be read from
In the cabin
Where can the crew oxygen level be read
- On the MFD
- On the external servicing point
How can you tell if the crew oxygen system has been over-pressurized
The blowout indicator on the side of the plane
In what mode should the crew oxygen mask be stored
100%
Describe the different modes on the crew oxygen masks
- Emergency - 100% under positive pressure
- 100% - pure oxygen under normal pressure
- Normal - mix of oxygen and normal air
When would you use the emergency mode on the crew oxygen mask
Smoke in the cockpit
What is an easy way to remember how to get into emergency mode on the mask
Rotate towards the captain
How is oxygen supplied for the passengers
Using chemical oxygen generators
When will the passenger masks automatically drop
14,000 feet � 500 feet
When the masks drop, does that start the flow to the mask
No, the lanyard must be pulled to start it
How long does the passenger oxygen last for
12 minutes
What is a positive indication that the passenger masks have dropped
The light is on
What is the duration of the walk around oxygen bottles
30 minutes
What does an OXYGEN LO PRESS indication mean
400 psi, 12 minutes remaining for a crew of three
How many ways are there to tune a radio
3.5
- Comm 1 w/ comm 1
- Cross tune with the 1/2 button
- Tune both with the FMS
- Comm 2 with the TBCH
Is the TBCH a radio
No, it's just another way to tune comm 2
What button do you need to press before you can tune with the TBCH
EMER
What activates the flight data recorder
Beacon light on or weight off wheels
How far back will the CVR record
2 hours
When does the CVR turn on
When the plane is powered
How much time will the CVR erase feature erase
The last half hour
How do you test the CVR
Press the test button and look for a one second blip in the yellow light
How do you erase CVR
- WOW
- Brakes set
- Push the erase button
How man PBEs on the plane
Three
According to the FARs where should the PBEs be located
Within three feet of the fire extinguisher
If you push EMER on the comm panel will you have interphone between the two pilots
No
If you have a single FMS and both pilots are in long range nav what color will the needles be
Yellow
How long after you land will it take for de-pressurization from 300 ft. below field elevation
30 seconds
Which cockpit lights will you have in an electrical emergency
The dome light is the only one
How can you operate the cockpit dome light from outside the cockpit
Leave the dome light switch on and then use the courtesy light switch to operate it
How are emergency lights powered
Four dedicated batteries placed throughout the overhead bins
How are the emergency light batteries charged
By the essential bus
In what switch position will the emergency lights be charged
Armed
What does the red light on flashlights mean
It is charging
Where does the FMS get its data from in order of priority
- GPS
- DME/DME
- VOR/DME
- Dead reckoning from last known position
Which pitot static tubes and ports are on the left side of the plane
Odd number
Which items get data from pitot/static #3
- Standby airspeed
- Standby altimeter
- CPAM
Describe the windshield construction
- Outer layer of glass
- Heating element
- Inner layer of glass
What should you do if you notice a crack on the inside layer of windshield
Descend and depressurize
What is the range of view of the radar
- 120� lateral
- 8� vertical
What is RCT on the radar panel
Rain echo attenuation, paints the shadows blue
What does TRB on the radar panel do
Paints turbulence in white
What does STAB do on the radar panel
Stabilization
What does TGT do on the radar panel
It will look for red or magenta beyond the selected range of the radar and if it finds some it will illuminate an amber TGT annunciation
How do you exit forced standby on the ground
Press the STAB button 4 times in 3 seconds
What is GMAP on the radar panel
Ground mapping, needs to be on in mountainous regions
What is SECT on the radar panel
Cycles between 120� and 60� azimuth sweep for on-side and cross-side displays
If you have an alternate listed how do you get performance data for it
Type it into ACARS just like you would your destination
How many smoke detectors are in the baggage compartment
Two