What are the O2 requirements for commercial a/c ? When does the PIC deem necessary to don oxygen masks and drop the oxygen masks for the passengers? I'm aware that in the event of cabin decompression is one.
I haven't been able to find the ICAO annex for oxygen requirement for commercial a/c.
I found the ICAO annex part ii and iii but it states that they are for any purpose other than public transport. States that - between FL100 and FL130 if flight shall last for more than 30mins all crew must don O2 masks and above FL130 they are recommended to use oxygen at all times.