PPRuNe Forums - View Single Post - B737 Start Valve, Minimum Time Between 1 And 2...
Old 11th November 2004 | 17:39
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alexban
 
Joined: Aug 2001
Posts: 755
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From: Europe-the sunshine side
my guess it's a position sensor.It will be on if you open manually the valve,as I remember seeing once.But I maybe wrong,I'll check
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