What 3 ways can the supplemental oxygen be deployed?
Automatically when cabin altitude exceeds 14000 - 15000 ft
Electrically via a switch located in FCC
manually at each PSU
787- if a decompression occurs whilst you are in the CR what will you see and hear
A decompression horn (continuous) sounds in the main CRA and at the entrance. The green oxygen indicator light illuminates inthemsinarea