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Old 11th August 2019 | 13:34
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Uplinker
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: ATPL
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To help troubleshoot this (on the ground while not in flight), you can switch the ATT HDG ECAM switch to Capt on 3.

If the odd display remains the fault is downstream of the DMCs. If the fault clears, the problem is at, or upstream of, DMC 1.

Last edited by Uplinker; 11th August 2019 at 13:49.
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