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Old 9th Oct 2012, 16:27
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nimsu1987
 
Join Date: Sep 2012
Location: Warwickshire
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CDU/FMC keyboard
Hi guys, I just noticed that 4 keys on a 747-400 CDU/FMC computer (E N S W) have a white box around them to highlight them (I assume).

I just wondered if any airline pilots could enlighten me as to why. I've looked over google and here and couldn't find any answers. Many thanks

Nim
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