B777飞机故障报文 MSG 3432601 故障隔离过程

NO

YES

you corrected the fault

AOA Sensor Left No Output to IOM(M004) - Fault Isolation左迎角传感器未向IOM(M004)提供输出

Repair the wiring. 

Do a wiring check between these pins of connector DM34103B at the left AOA and the IOM connector P4-A at the left AIMS cabinet (WDM 34-21-41): 执行在左侧迎角传感器处的连接器 DM34103B 的引脚和左侧 AIMS 机柜 （WDM 34-21-41） 的 IOM 连接器 P4-A 之间的接线检查：

If the MAT shows NOT ACTIVE for the maintenance message (or if the message does not show)

Replace the IOM(M004) module from the left AIMS cabinet.更换仪表设备架上的IOM（M004）模块

DM34103B                                        P4-A pin 1 - - - - - - - - - - - - - - - - - - - pin G2pin 2 - - - - - - - - - - - - - - - - - - - pin G3pin 3 - - - - - - - - - - - - - - - - - - - pin H2pin 4 - - - - - - - - - - - - - - - - - - - pin H3pin 5 - - - - - - - - - - - - - - - - - - - pin H4

Do this check of the wiring检查接线

Disconnect connector DM34103B from the left AOA.从左侧迎角传感器上拆下DM34103B总线