Oxygen

Question 1

Oxygen

Can the goggles be separated from the mask ?

Answer 1

Yes they can.

There is a clip mechanism on top of the air supply unit

Question 2

Oxygen

What system provides oxygen to the passengers ?

Answer 2

Gaseous oxygen stored in small high-pressure cylinders throughout the cabin ceiling PSUs (Passenger Service Units).

Question 3

Oxygen

Passenger oxygen:
When does oxygen flow from cylinder begin ?

Answer 3

When :
• Oxygen masks are deployed,
• Mask is placed over the nose and mouth,
• Normal breathing is initiated.

Question 4

Oxygen

Can the passenger oxygen system be manually deployed ?

Answer 4

YES, by pressing the PASS OXYGEN switch on the overhead panel.
An ON light located on the switch will illuminate when the passenger system is operating and the masks have dropped.

Question 5

Oxygen

What triggers the automatic deployment of the passenger oxygen masks ?

Answer 5

Cabin altitude reaching the greater of :
• 14 500 feet
• Origin airfield altitude +1500 feet
• Destination airfield altitude +1500 feet

Question 6

Oxygen

What does the amber ON light on the passenger oxygen switch indicate ?

Answer 6

• The passenger system is operating and

* The masks have dropped.

Question 7

Oxygen

How can compensation or fogging be removed from the interior of the mask lens ?

Answer 7

By selecting the emergency position.

Question 8

Oxygen

How many portable first aid oxygen bottles are installed ?

Answer 8

11 bottles.

Question 9

Oxygen

Approximately how long will a Passenger O2 bottle (PSU) last ?

Answer 9

The oxygen cylinders are single use devices and once activated, provides oxygen until the cylinder is depleted.

Oxygen is available for approximately 60 minutes.