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Old 16th Jul 2009, 19:00
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alistomalibu
 
Join Date: Mar 2006
Location: Argentina
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master FCC in 737NG

Hi

My question: What will the autopilot do in this following scenario?
Pilotīs VHF NAV are the same (example 116.5) but courses are different. The captain selected a 340 course and the First officer selected 010. If flying outbound, which radial will follow the VOR LOC mode when engaged? 340 or 010?

Please read the following information. (It helped me but I dont finish to understand it very well...)
The master FCC is indicated by illumination of the respective Master (MA) F/D Indicator Light. The master FCC is determined as follows :
- With neither A/P engaged in CMD, the FCC for the first F/D turned on is the master.
- With one or both A/Ps engaged in CMD, the FCC for the first A/P in CMD is the master FCC, regardless of which F/D is turned on first.


Normally, FCC A drives the Captain's command bars and FCC B drives the First Officer's command bars. With both F/D switches ON, the logic for both pilot's F/D modes are controlled by the master FCC and both ADIs or PFDs show the same mode status. If both pilot's VHF NAV frequencies

and/or courses have not been set the same, their F/D commands may not agree.

Thanks
Alejandro
Argentina

Last edited by alistomalibu; 16th Jul 2009 at 19:49.
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