munirabbasi Posted September 18, 2014 Share Posted September 18, 2014 Hello Expertises During flight # 1 ENG generator "C" phase voltage sudden drop to 90 V stay at 95 V ,with all WX /indication normal Generator & VR checked on bench found satisfactory result. is load of galley or # 1 & EXT tanks fuel pumps ,or NESA windshield,CC RE-circulating fan, FSR are malfunctioning. gally load C phase on L/container outlet Regards Munir abbasi Home of hercules Pakistan Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted September 19, 2014 Share Posted September 19, 2014 Turn on each item one at a time and see what happens to the load and voltage. May be a total draw (all systems on) or one system that is causing the issue... Quote Link to comment Share on other sites More sharing options...
Pebbles Posted October 3, 2014 Share Posted October 3, 2014 we have encountered this on one of aircraft. Found the terminal stud at the AC generator loose and intermittent. Quote Link to comment Share on other sites More sharing options...
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