71. 所需经费减少的主要原因是：(a) 固定翼飞机的租赁和运营，原因是一架安-26 飞机延迟部署，合同费用降低，一架 DHC-8 飞机的合同费用降低，以及冠状病毒病疫情导致飞行时数减少；(b) 直升机租赁和运营，原因是未部署三架军用直升机，三架新民用直升机的合同费用较低，以及冠状病毒病疫情导致飞行时数减少；(c) 汽油、机油和润滑油，主要原因是每升航空燃料的费用降低，以及由于冠状病毒病，飞行次数减少；(d) 着陆费和地勤费，主要原因是一架安-26 飞机推迟部署，飞行次数减少。
71. The reduced requirements were attributable mainly to: (a) the rental and operation of fixed-wing aircraft, owing to the delayed deployment and lower contractual cost of an AN-26 aircraft, the lower contractual cost of a DHC-8 aircraft and a lower number of flight hours as a result of the COVID-19 outbreak; (b) the rental and operation of helicopters, owing to the non-deployment of three military helicopters, the lower contractual cost of three new civilian helicopters and a lower number of flight hours as a result of the COVID-19 outbreak; (c) petrol, oil and lubricants, attributable mainly to the lower cost per litre of aviation fuel and to a reduced number of flights due to COVID-19; and (d) landing fees and ground handling charges owing mainly to the delayed deployment of an AN-26 aircraft and a reduced number of flights.