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Battery Grounding

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  • Battery Grounding

    I had a curious issue with my 912is. After flying I would turn the key to "off" and nothing happened. They displays, fans, everything remained on. This also happened over night. The aircraft would "turn on" without the key in it. I ended up replacing the battery solenoid located on the port side of the battery box but the issue remained. A call to Lockwood and to Scoda confirmed that the failure was consistent with a grounding problem. I traced all cables I could, ensured the ground battery bus located between the G3X's had solid connections, etc...
    Eventually I removed the battery solenoid again. The connections all looked solid but I ended up reversing the battery cable and the smaller bilge pump wire. The initial connection had the bilge pump wire closer to the solenoid. I put the battery cable first with the bilge pump wire abutting the nut. Problem has not recurred since (over 2 weeks now).

  • #2
    well done!