Indicating & Recording Flashcards
What does the EICAS provide
Automatic system monitoring
Aural alerts
Color logic for presentation of minimum/maximum limits
Integration of system information
How many EICAS displays are there
There are two different displays. ED1 (on the left side, usually on the primary page) and ED2 (typically on the status page but is the screen where we usually go through the different pages)
What’s a data concentrator unit (DCU)
Heart and brains of the EICAS system. Determines what color to make something and what to display on the EICAS screens. Receive information from thousands of different aircraft sensors.
What is a white colored EICAS message mean
Status message
What kind of displays are the
Cathode Ray tube displays. They get very hot.
Do the EICAS screens come on with the battery master
Yes. But until the APU gets powered up there’s no AC power in the aircraft which means the cooling fans aren’t available. THE EICAS displays will overheat so there’s a 5 minute limitation with just the battery.
Can the audio warnings be turned off
Yes they can, by pressing the guarded audio switches on the FO’s right leg. Need to coordinate with the other pilot before pressing. Should almost never be disabled.
Lamp driver unit
Connected to the DCU and determines which lights illuminate.
Master caution light
- Single chime
- Won’t stop flashing until you press it
- always, “cancel, identify” then the pilot flying will say, “I have the radios and controls. Get the QRH”read the the EICAS to identify and then go the QRH.
Master warning light
- Triple chime
- These are more urgent
- “cancel, identify” “I have the radios and controls”
Warning
Indicates a condition that requires immediate actions. Cannot be boxed.
Caution
Indicates a situation that requires prompt action. Can be “boxed” which means it can be sent to a folder to declutter the EICAS. To box the caution messages you hit the CAS button on the EICAS page panel.
Advisory message
Indicates that a safe configuration exists. Green in color. Cannot be boxed.
Status message
Indicates that a particular aircraft state exists. Not necessarily good or bad. Can be boxed by pushing the STAT button.
How are messages grouped.
Within each type of message they are displayed chronologically. Each different type group is displayed according to severity, warning, caution, advisory, status.
Stall advisories
Shaker, then pusher, then warbler aural sound.
How many aural warning types are there?
- Should try to be aware of them all.
Can the aircraft give you more than one aural warning at a time?
No. If multiple sounds are required it will play them in order of priority.
EICAS control panel
Located on the center pedestal between the pilots. Has buttons with the different pages that can be displayed. Step button goes through each page in order on ED2, which is useful if one of the page buttons is inop.
Flow line color
Green is normal flow
Amber is low flow
Black is no flow
Red is too high flow
MFD reversionary mode
Can be in normal, EICAS and PFD mode. So the MFD can display whatever you want t depending on how its selected.
Source selection panel
Normal, ED1 and ED2 selection. Normal leaves the EICAS in ED1 being primary and ED2 displaying other pages.
EICAS message inhibit logic
The DCU’s will process inhibit logic to minimize spurious or distracting warning and/or caution messages during the takeoff and landing phases.
Inhibit 1
Failures won’t be shown on takeoff until 400’AGL
Inhibit condition 2
Above 100 knots
Inhibit condition 3
Won’t come on during landing (below 400’ AGL) under 30s after weight on wheels.
Takeoff config advisory message
To get the message you need to have 7 things -3 trims in green -parking break off -flaps 8º or 20º - -
Takeoff config warning
Armed when on the ground and both engines above N1>70%
PASSFAR
Parking break - off Autopilot - off Spoilers - retracted Stab trim - green Flaps - 8º or 20º Aileron trim - green Rudder trim - green
Maintenance diagnostic computer (MDC)
Used to record aircraft mechanical avionics system data. Need to flip the red switch on circuit breaker panel one (behind the captains seat) in order…
Flight data recorder
- Records the last 25hrs of flight data
- Sends information via “flight operations quality assurance (FOQA)” to your company. Can’t be used for disciplinary action but the information is sent to flight safety. That data can be used to determine if you need retraining or other actions required by flight safety.
- Starts when either the beacon or strobe lights are turned on. If you forget it will also go on with weight off the wheels.
Cockpit voice recorder
Records last 2 hours on a loop. Starts with battery master on.
