PPRuNe Forums - View Single Post - 737-800 Autothrottle Question
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Old 23rd Nov 2012, 18:40
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B737900er
 
Join Date: Apr 2012
Location: In Space
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There are several reasons why the autothrottle may not engage.

FMC preflight not completed
invalid OAT
Inop RA1
MCP solenoid switch INOP
EEC data bus fail.
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