angus to the fact that nanyofthepersonnel of many of the scientific projects did not understand the proper channels through which to request special airlift support. Also early in April a fatal helicopter accident at night and under adverse weather conditions caused a re-evaluation of helicopter procedures which subsequently placed restrictions on night liaison and helicopter flying. This policy restricted to some extent the support many scientific projects had planned for and through mis- understanding the reasons for these operation limitations, some adverse reaction was experienced. Coordination with scientific project personnel and with supervisory personnel of Task Group 7.1 ironed out most of the difficulties and misunderstandings and during the last half of the operation support airlift activities operated very smoothly. During HARDTACK, the H-19's flew 1262 hours and carried 6710 passengers and 57,300 pounds of cargo. The H-21's flew 25 hours and carried 23,328 passengers and 307,150 pounds of cargo. See Figures 16 and 17 for summaries of helicopter operations. The SA-16 aircraft of the SAR Element flew regular weekly schedules to the weather island sites of Wotho, Kapingamarangi, Uterik, Kusaie, Rohgelap and Ujelang. These flight had to be made in amphibious aircraft because no airstrips were available at these sites. hours on airlift flights. 173,701 pounds of cargo. The SA-16 flew 1119 These flights carried 1390 passengers and Certain problems were encountered in this oper- ation but they will be discussed in the portion of this section devoted to the SAR Element. The three (3) L-19 aircraft were used primarily as executive transports. Two (2) were based at Parry Island and reserved for use of Joint ii ita, { AFWL/HO