1. Don the oxygen masks.
2. Establish crew communications.
3. Check the cabin altitude and rate.
4. If the cabin altitude is uncontrollable:
PASS OXYGEN switch …….. Push to ON and hold for 1 sec
(777F* SUPRNUMRY OXYGEN switch ……. Push to ON and hold for 1 sec)
Without delay, descend to the lowest safe altitude or 10,000 feet, whichever is higher.
To descent:——————————————————————-
- Move the thrust levers to IDLE - Extend Speedbrakes
- IF structural integrity is in doubt, limit airspeed and avoid high maneuvering loads.
- Descent at VMO/MMO |