11.15 - Oxygen Flashcards
Where is the crew oxygen regulator located
As close to the bottle as possible to avoid/reduce the amount of high pressure lines
On inspection, the crew oxygen bottle shows 1680psi when it should show 1850psi. What should you do
Consult charging chart as pressure depends on temperature
When does oxygen flow to the oxygen generator masks
When the mask is pulled downwards from the passenger service unit
How can the oxygen flow into the crew oxygen mask be tested without removing the mask from its stowage
By moving the press to test button and watching the oxygen flow indicator
If you inspect an oxygen storage bottle and find that the pressure is 75psi. What should you do
Re charge the bottle
How many oxygen masks are there per number seats in the row
One more than the number of seats in case there is a child sharing its parents seat
What normally activates the passenger oxygen system
A pressure switch which senses the cabin pressure (cabin altitude)
What safety precautions should be strictly adhered to when working on oxygen systems
Use no oil or grease, keep clean and handle with care
How can maintenance be carried out on individual passenger oxygen masks
The units can be opened individually by using a special tool
If you inspect an oxygen storage bottle and find that the pressure is 75 psi, which section should you take
Recharge the bottle
How can you tell that a chemical oxygen generator has been used
By checking a temperature sensitive decal on the unit
