ERJ7 OXYGEN Flashcards
How can you tell if the PBE is good?
Blue humidity seal and at least one seal intact
How long does the pax o2 last?
Approx 12 minutes
When will pax o2 masks drop?
Cabin alt of 14000-14750 Or manually by cockpit switch or At the individual PSU
Where is the crew 02 bottle?
Under the RH front cabin with access from forward cargo compartment
AIR MANAGEMENT
What happens when you push the dump button?
Packs and recirculation fans turn off
Outflow valve climbs cabin to 12,400’ at 2000fpm
At 12,400 outflow valve closes and cabin rises by natural leak
AIR MANAGEMENT
Is the dump function avail in Manual mode?
No, but both packs and recirculation fans turn off if the button is pushed in
AIR MANAGEMENT
How many CPCS modes?
Ground Taxi Takeoff Climb Cruise Descent Abort
AIR MANAGEMENT
When will abort mode activate?
The airplane stops climbing Cruise mode was not achieved Pressure alt lower than 10,000’ Airplane is lower than 5000’ AFE
AIR MANAGEMENT
Why is the LFE Cyan on the MFD?
It was set manually by the pilot with the LFE knob, and not the MCDU
AIR MANAGEMENT
What are the 2 pressurization limits for cruise flight?
37,000’ and below. 7.8psig
Above 37,000’. 8.34 or 8.4
AIR MANAGEMENT
How many fans in forward and center cargo bays?
3
AIR MANAGEMENT
How many fans are in the aft cargo bay?
None
How long will cockpit oxygen be provided in emergency?
Descent from 41000 to 10000’ in 22 minutes then 98 minutes at 10000’
