1适用范围B737NG飞机2参考索引AMM,SSM3故障现象飞机OEV排气口偶尔卡在关位4故障描述及故障分析(1)故障描述2014年8月14日B-5067飞机短停时,前OEV排气口无气流,打开后正常(应该是作动后外溢活门后OEV开关正常)。2014年8月16日,航后航材领出的OEV是故障件,不能保持在全关位。2014年8月21日,航后到件,更换故障的OEV,功能测试正常, 1 Scope B737NG Aircraft 2 Reference Index AMM, SSM3 Symptom Occasional card OEV exhaust stuck in the OFF position 4 Fault description and fault analysis (1) Fault description 14-Aug-2014 B-5067 When the aircraft is briefly stopped, the front OEV Exhaust air flow, normal open (should be activated after the overflow valve OEV switch normal). On August 16, 2014, the OEV led by the aeronautical materials after the flight was a fault and could not be kept in the full position. August 21, 2014, after the flight to the pieces, replace the fault OEV, functional test is normal,