Oxygen

Question 1

How many oxygen cylinders are installed for the cockpit oxygen system?

Answer 1

1 cylinder stored on the left lower side of the fuselage accessed through a panel forward and left of door 1L.

Question 2

If the green disc oxygen indicator is missing, what does this indicate?

Answer 2

Oxygen has been depleted due to over pressure.

Question 3

On the door/oxy page what happens to the oxygen pressure indicator when the pressure falls below 1000PSI?

Answer 3

A half amber frame occurs around the pressure indicator.

Question 4

What happens to the oxygen pressure indication on the door/oxy page when pressure drops below 300PSI?

Answer 4

The numeric value and frame turn amber.

Question 5

Above what altitude does the oxygen mask provide 100% oxygen?

Answer 5

Above 35,000ft

Question 6

Above what altitude does the oxygen mask provide emergency oxygen under pressure?

Answer 6

Above 30,000ft

Question 7

How is oxygen supplied to passengers? 

Answer 7

Via fixed chemical oxygen generators

Question 8

How long do the chemical oxygen generators supply oxygen for? 

Answer 8

15 minutes 

Question 9

When do the cabin oxygen mask deploy?

Answer 9

• When cabin altitude exceeds 14,000 feet
• When the MASK MAN ON pushbutton is depressed.

Question 10

What are some side effects of the chemical oxygen generators?

Answer 10

Chemical oxygen generators produce heat, and may also produce light smoke and odors.

Question 11

How many portable oxygen generators are installed on the A320?

Answer 11

Five portable oxygen bottles. Two in the front cabin area, three in the back cabin area.

Question 12

How long can the portable oxygen bottle supply oxygen for?

Answer 12

Approximately 65 minutes