Document ID: chunk:federal_register_of_legislation:F2005B00777:body:0:p6
Version: federal_register_of_legislation:F2005B00777
Segment Type: other
Provision Reference: 
Character Range: 12639–15297

emergency descent safety period; or
 (iii) in the case of an aircraft, other than a high capacity aircraft, that is to be operated above Flight Level 250 but not above Flight Level 450 — the supply of oxygen set out in paragraph 8.3.1; or
 (iv) in the case of an aircraft, other than a high capacity aircraft, that is to be operated above Flight Level 450 — a supply of oxygen for the aircraft's emergency descent safety period.
8.3.1 For the purposes of sub-subparagraph 8.3 (b) (iii), the supply of oxygen that must be provided in an aircraft is:
 (a) if the aircraft's flight manual sets out the time specified by its manufacturer as the time required for it to descend from its maximum operating altitude to 10, 000 feet:
 (i) a supply for the aircraft's emergency descent safety period; or
 (ii) a 10 minute supply;
  whichever is more; or
 (b) in any other case — a 15 minute supply.
8.4 Unless paragraph 8.5 applies, where a pressurised aircraft to which this subsection applies is operated above Flight Level 250, then at least 1 pilot seated at the controls of the aircraft must use supplemental oxygen at all times during which the aircraft is operated above Flight Level 250.
8.5 Paragraph 8.4 does not apply if an aircraft is equipped with a quick-donning type oxygen mask for the pilot or, if more than 1 pilot is required for the flight, each pilot. However, whenever the aircraft is operating above flight level 450, the pilot, or one of the pilots, seated at the controls of the aircraft must wear an oxygen mask that is properly fitted and supplying oxygen.
 Supplemental oxygen for other crew members
8.6 A crew member (not being a flight crew member on flight deck duty) in a pressurised aircraft to which this subsection applies must:
 (a) be provided with supplemental oxygen at all times during which the cabin altitude exceeds 10 000 feet; and
 (b)  use supplemental oxygen at all times during which the cabin pressure altitude exceeds Flight Level 140.
 Use of portable oxygen equipment by cabin attendants
8.7 During flight in a pressurised aircraft above Flight Level 250, each cabin attendant must carry portable oxygen equipment containing at least a 15 minute oxygen supply, unless CASA is satisfied that sufficient portable oxygen units with masks, or spare oxygen outlets and masks, are distributed throughout the cabin so as to ensure the immediate availability of oxygen to each cabin attendant regardless of the attendant's location in the cabin.
 Supplemental oxygen for passengers
8.8 A pressurised aircraft that is to be operated above Flight Level 250 must carry an amount of supplemental oxygen that is sufficient:
 (a)