PPRuNe Forums - View Single Post - 737NG APU Start Issue

22nd June 2019 | 15:46

#8 (permalink)

flyingchanges

Joined: Jan 2008

Posts: 211

Likes: 3

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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