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Old 22nd June 2019 | 15:46
  #8 (permalink)  
flyingchanges
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Joined: Jan 2008
Posts: 211
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From: farmm intersection, our ranch
Bad start relay. Should show up on the CDU APU MAINT page under current faults.
Have seen this a few times over the last 10 years, and as stated above, the discharge light should only come on during a pure battery start.
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