(b)Oxygen equipment and supply requirements1.Flight crew members(i)Each member of the flight crew on flight deck duty shall be supplied with supplemental oxygen in accor-dance with Appendix 1. If all occupants of flight deck seats are supplied from the flight crew source of oxy-gen supply then they shall be considered as flight crew members on flight deck duty for the purpose ofoxygen supply. Flight deck seat occupants, not supplied by the flight crew source, are to be considered aspassengers for the purpose of oxygen supply.(ii)Flight crew members, not covered by subparagraph (b)1(i) above, are to be considered as passengers for thepurpose of oxygen supply.(iii)Oxygen masks shall be located so as to be within the immediate reach of flight crew members whilst at theirassigned duty station.(iv)Oxygen masks for use by flight crew members in pressurised aeroplanes operating above 25 000 ft shall bea quick donning type of mask.2.Cabin crew members, additional crew members and passengers(i)Cabin crew members and passengers shall be supplied with supplemental oxygen in accordance with Appen-dix 1, except when subparagraph (v) below applies. Cabin crew members carried in addition to the mini-mum number of cabin crew members required, and additional crew members, shall be considered aspassengers for the purpose of oxygen supply.(ii)Aeroplanes intended to be operated at pressure altitudes above 25 000 ft shall be provided with sufficientspare outlets and masks and/or sufficient portable oxygen units with masks for use by all required cabin crewmembers. The spare outlets and/or portable oxygen units are to be distributed evenly throughout the cabinto ensure immediate availability of oxygen to each required cabin crew member regardless of his/her loca-tion at the time of cabin pressurisation failure.(iii)Aeroplanes intended to be operated at pressure altitudes above 25 000 ft shall be provided with an oxygendispensing unit connected to oxygen supply terminals immediately available to each occupant, whereverseated. The total number of dispensing units and outlets shall exceed the number of seats by at least 10 %.The extra units are to be evenly distributed throughout the cabin.(iv)Aeroplanes intended to be operated at pressure altitudes above 25 000 ft or which, if operated at or below25 000 ft, cannot descend safely within four minutes to 13 000 ft, and for which the individual certificate ofairworthiness was first issued on or after 9 November 1998, shall be provided with automatically deploy-able oxygen equipment immediately available to each occupant, wherever seated. The total number of dis-pensing units and outlets shall exceed the number of seats by at least 10 %. The extra units are to be evenlydistributed throughout the cabin.
