The EEC will set this message when the oil debris monitoring system (DMS) sensor is failed for 5 seconds.(a)This fault is only detected and annunciated by channel B.
代码为71-09001 “ONBOARD MAINTENANCE FUNCTION HAS NO INPUT FROM ENGINE-1 EEC”,737MAX-FTD-71-22002对该信息做过说明,如果将EEC置于TEST模式,则可以清除故障。同时波音建议如果发现MAINT灯亮,波音建议运营人 不要将MAINT灯与维护信息71-09001与/71-09011联系到一起,并采取进一步的排故来寻找MAINT灯亮的来源。