ORO.CC.205 Reduction of the number of cabin crew members during ground operations and in unforeseen circumstances
(a) Whenever passengers are on board an aircraft, the minimum number of cabin crew members required in accordance with point ORO.CC.100 shall be present in the aircraft and ready to act.
(b) By way of derogation from point (a), the minimum number of cabin crew members may be reduced in either of the following cases:
(1) during normal ground operations not involving refuelling or defuelling when the aircraft is at its parking station;
(2) in unforeseen circumstances if the number of passengers carried on the flight is reduced. In this case, a report shall be submitted to the CAA after completion of the flight;
(3) for the purpose of providing in-flight rest during the cruise phase, either in accordance with point ORO.FTL.205(e) or as a fatigue mitigation implemented by the operator.
(c) For the purposes of points (b)(1) and (b)(2), the operator’s procedures of the operations manual shall ensure that:
(1) an equivalent level of safety is achieved with the reduced number of cabin crew members, in particular for evacuation of passengers;
(2) despite the reduced number of cabin crew members a senior cabin crew member is present in accordance with point ORO.CC.200;
(3) at least one cabin crew member is required for every 50, or fraction of 50, passengers present on the same deck of the aircraft;
(4) in the case of normal ground operations with aircraft requiring more than one cabin crew member, the number determined in accordance with point (3) shall be increased by one cabin crew member per each pair of floor level emergency exits.
(d) For the purposes of point (b)(3), the operator shall:
(1) conduct a risk assessment to determine the number of cabin crew members who are to be present and ready to act at all times during cruise;
(2) identify measures to mitigate the effects of having a lower number of cabin crew members being present and ready to act during cruise;
(3) establish in the operations manual specific procedures, including for the in-flight rest of the senior cabin crew member, that ensure at all times appropriate passenger handling and efficient management of any abnormal or emergency situations;
(4) specify, in the flight time specification scheme in accordance with point ORO.FTL.125, the conditions under which in-flight rest may be provided to the cabin crew members.