EICAS Flashcards
What does EICAS stand for
Engine instrument and crew alerting system
What manufacturer is EICAS
Boeing
What does EICAS show
Engine primary + secondary indications are displayed plus the centralised aural and visual crew alerting system for non normal situations
Also shows status of certain systems not otherwise displayed on the flight deck
How many DCU does EICAS have
2 but only 1 is used the other is a standby
What is a DCU
Data concentrator units
What happens if the EICAS control panel is set to auto or both
The standby DCU take over automatically in the event of a failure
What is usually on the upper EICAS screen
Primary engine parameters
engine power setting:
- engine pressure ratio (EPR)
- % N1 speed
Exhaust gas temperature (EGT)
Red warning / amber caution and advisory messages
What does the lower EICAS screen display
Secondary engine parameters
N2
Fuel flow
Engine vibrations
Engine oil quantity / pressure / temperature
Can show status page and synoptic system pages
What is EICAS operational mode
Usual mode in flight usually shows primary engine displays, warning and caution messages on upper screen
Lower screen shows either blank or selected data
What is EICAS status mode
Usually lower screen
Normally used on ground before dispatch to assess the aircraft state
Shows such things as:
- hydraulic pressure and quantity
- apu daya
- cockpit reserve oxygen pressure
- flight control positions or rudder ailerons and elevator
White status message on right side of display to show faults
What is EICAS maintenance mode
Only available on the ground for use by the engineer staff
What is EICAS crew alerting messages
If fault / failure occurs
= crew alerting message displays on upper screen
Accompanied by aural warning and flashing master warning / caution lights
Level A = warning = immediate awareness and response
Level B = caution = immediate awareness and subsequent response
