OXYGEN

Question 1

MINIMUM FLIGHT CREW OXYGEN PRESSURE

Answer 1

Protection against toxic gases and smoke for all flight crewmembers with the
N/100% selector set to 100%, at 8 000 ft of cabin altitude for 15 min.

Question 2

MINIMUM CABIN OXYGEN PRESSURE

Minimum CABIN Oxygen Pressure At Dispatch (A380 3-class)

Answer 2

The oxygen cylinders will be normally maintained at a pressure of at least 1 850 PSI
A CABIN oxygen pressure of 1 650 PSI is sufficient to dispatch with up to 552 passengers and cabin
crew on any route in the company network, including ‘Northern Himalayan’ routes.
A flight can be
dispatched provided the actual oxygen pressure is no less than that obtained in the table, even if the
cabin pressure indication on the DOORS page is displayed in green in an amber half frame, or is displayed in amber

Question 3

Minimum CABIN Oxygen Pressure At Dispatch (A380 3-class)
Routes for which Depressurization Strategies have been published in the OFP
Routes for which Depressurization Strategies have been
published in the ‘Driftdown and Rapid Depressurisation
Strategies North Himalayan Region’ chart
Routes for which LIDO-OFP could not calculate
Depressurization Strategies
Basis: 552 passengers and cabin crew.

Answer 3

1 300 PSI

1 650 PSI

Company NOTAMS on Depressurization Strategies for
particular Company Route

Question 4

Minimum CABIN Oxygen Pressure At Dispatch (A380 2-class)

Routes for which Depressurization Strategies have been
published in the OFP

Routes for which Depressurization Strategies have been
published in the ‘Driftdown and Rapid Depressurisation
Strategies North Himalayan Region’ chart

Routes for which LIDO-OFP could not calculate
Depressurization Strategies
Basis: 654 passengers and cabin crew

Answer 4

A CABIN oxygen pressure of 1 750 PSI is sufficient to dispatch with up to 654 passengers and cabin
crew on any route in the company network, including ‘Northern Himalayan’ routes

1 350 PSI

1 750 PSI

Company NOTAMS on Depressurization Strategies for
particular Company Route