一 | On August 15, Ethiopian Airlines flight ET343 was en route from Sudan to Ethiopia when the aircraft’s two pilots fell asleep, according to the Daily Mail.,The Ethiopian Airlines Boeing 737-800 aircraft was cruising at 37,000ft, when alerts were raised on the ground as the plane had approached the airport but did not start to descend.,Air Traffic Control unsuccessfully tried to contact the plane’s crew.,Sometime later, the alarm of the disconnected autopilot awoke the two pilots and they managed to land the plane safely.,The data confirms the incident, which shows that the plane flew over the runway and managed to make another approach when the pilots woke up.,"Deeply concerning incident at Africa's largest airline — Ethiopian Airlines Boeing 737 #ET343 was still at cruising altitude of 37,000ft by the time it reached destination Addis Ababa. Why hadn't it started to descend for landing? Both pilots were asleep,” Aviation analyst Alex Macheras commented the incident on Twitter.,Two and a half hours later, the plane left the airport for its next flight.,A similar incident occurred in April, when, according to reports, two pilots flying from New York to Rome with 250 passengers failed to get in touch with Air Traffic Control for ten minutes and had presumably fallen asleep.。 供应方面，上周苯乙烯开工环比下降0.6个百分点。山东利华益72万吨于8月14日开始检修40天，8万吨小装置同步停车检修；京博思达睿67万吨7月中旬开始检修，已于8月21重启。苯乙烯港口总库存环比下降1.9万吨。需求方面，随着苯乙烯价格大幅走高，下游利润逐步压缩，下游工厂维持刚需采购，整体气氛疲软。前期EPS/PS维持淡季开工后陆续恢复，整体开工水平走高；ABS行业开工偏弱。出口货源陆续装船，带动港口库存回落。总之，地缘局势缓和，原...。
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