Emergency Descent
Cabin Altitude or Rapid Depressurisation
Don Oxygen masks……..100%
Establish Crew communication
Pressurisation mode selector …… Manual
Outflow Valve switch……..Hold in close until the Outflow Valve indicates fully closed.
If uncontrollable?
Pax Signs…..ON
Pax Oxy switch ….. On
Go to Emergency Desent Checklist