Oxygen Flashcards
Do the cockpit crew and passengers share the same emergency oxygen?
No, the cockpit crew uses O2 cylinder and the cabin passengers use O2 chemical generators
Where O2 to pressure be read?
MFD ‘STATUS’ page (corrected for temperature)
At the O2 cylinder panel (uncorrected for temperature)
What is the minimum O2 for a cockpit crew?
2 crew “Blue for 2”
3 crew “Green for 3”
Once the chemical O2 generators are started can they be shut off?
No
What activates when the flight deck O2 masks are removed from their storage unit?
Flow of O2
Mask microphone
Flight deck speakers
What happens if the TEST/RESET button is pressed while the flight deck O2 masks are not stowed?
Stops flow of O2
Deactivates mask microphone
Deactivates flight deck speakers
What types of oxygen will The quick-dawning cockpit crew masks provided?
Emergency pure oxygen with positive pressure
100% pure oxygen at all altitudes
Normal oxygen/air mixture (ratio depends on cabin altitude)
During pre-flight, how do you know if cockpit crew O2 has been over pressurized?
The green blowout disc would be missing on the forward right side of the fuselage.
What is the O2 duration for the following?
Passenger O2 12 minutes
Flight Attendant cylinder 30 minutes
PBE 15 minutes
When will passenger O2 mask automatically deploy?
Cabin altitude of 14,000 MSL
Can the O2 door dispensing unit be open to manually if it fails to automatically deployed?
Yes, via a Manual Release Tools (MTR) located at each FA station
What does the PBE provide?
Pressurized O2 and protection from smoke, fumes, and fire up to 40,000 feet for at least 15 minutes
Blue indication: good
Indication: bad
Vacuum loss: bad (even with the blue indication)
How many portable O2 cylinders are installed in the cabin?
2, one in the FWD section and one in the AFT section
2 masks per cylinder
