Oxygen Systems Flashcards
Where can O2 psi be read?
- MFD “STATUS” page (corrected for temp)
- At the O2 cylinder panel (un-corrected)
Do the cockpit crew and passengers share the same emergency O2?
No
( cockpit crew uses O2 cylinder, passengers use O2 chemical generator )
Once the chemical generators have started, can they be stopped?
No
what is the minimum O2 for cockpit crew?
Blue for 2
Green for 3
What activates when the flight deck O2 masks are pulled out?
- Flow of O2
- Mask Mic
- Flight Deck Speakers
What happens if the TEST/RESET button is pressed while
the flight deck O2 masks are not stowed?
- Stops O2 flow
- Deactivates Mask Mic
- Deactivates Flight Deck Speakers
What type of O2 will the flight deck masks provide?
Emergency:
- Pure oxygen with possitive pressure
100%:
- Pure Oxygen at all altitudes
Normal:
- Oxygen / Air Mix ( ratio depends on cabin alt )
During Pre-flight, how would you know if the cockpit crew O2 has been over pressurized?
The green blow out disc would be missing on the ofrward right side of the fuselage
What is the duration for PAX O2?
12 minutes
What is the duration for Flight Attendant O2 cylinder?
30 minutes
What is the O2 duration for the PBE?
Up to what altitude will the PBE be of use?
15 minutes
FL400
When will the PAX O2 masks auto deploy?
Cabin altitude > 14,000’ MSL
Can the PAX O2 doors be opened manually?
Yes
( Manual Release Tool )
How many portable O2 cylinders are installed?
What are thier ratings?
2
- 1 in FWD section of cabin and 1 in AFT section
- 2 masks per cylinder
- 11 cubic feet
- 1800’ psi
What is the cylinder size for cockpit’s O2 bottles?
What is the PSI?
77 cubic feet
1850 psi @ 70 degrees F
