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Old 04-01-2017, 08:21 PM
  #12550  
WhiskeyKilo
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Joined APC: Apr 2016
Posts: 505
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When I was on the 200 I was taught to deselect the ground power switch prior to it being plugged in or removed because it had the potential to short out. Makes perfect sense with the amount of power being applied. When I moved to the 900 almost every pilot has said to leave the switch in because the 900 does not have the same "problem" as the 200.

I'm on the side of the MX guys here. If ground power is applied to the aircraft the switch should be deselected until you are ready to use it. I've ran into so many issues with bad ground power that causes the computers to go nuts and random stuff starts failing; and just like magic, if you power cycle the airplane it's fixed.
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