737NG CPC
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737NG CPC
Hello,
I’m just wondering if anyone knows at what stage of flight do the CPCs switch over on a 737NG? Is it on touchdown, engine start up etc…
I’ve tried to find it in Boeing notes but all it states is that they changeover each flight 🤷🏻♂️
I’m just wondering if anyone knows at what stage of flight do the CPCs switch over on a 737NG? Is it on touchdown, engine start up etc…
I’ve tried to find it in Boeing notes but all it states is that they changeover each flight 🤷🏻♂️
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I don't think I've ever seen it written anywhere. Best guess would be on landing as it would take inputs from air/ground sensors. If not, after engine shutdown would be my guess.
Nipper1980,
The active CPC changes for every flight (or when there is an autofail event) via the air/ground logic from the proximity switch electronics unit (PSEU). Ref B737-600/700/800/900 AMM CH 32-30-00 Pg 14.
Rgds McHale.
The active CPC changes for every flight (or when there is an autofail event) via the air/ground logic from the proximity switch electronics unit (PSEU). Ref B737-600/700/800/900 AMM CH 32-30-00 Pg 14.
Rgds McHale.
