Good morning, hazy mysterious world,
on the XXXX ALTN page in 5L there is a toggle key for <ALL ENG and <ENG OUT.
Honeywell says: "Pushing 5L returns engine out information to all engine information."
Boeing says: "This prompt performs the same function as described on the cruise page."
I know what this function does on the CRZ page: Among other things, it changes the route status from ACT to MOD. It may also lower the current CRZ ALT for E/O conditions.
If I perform this function while in ALL ENG mode, I can only undo it by pushing the ERASE key.
But toggling 5L on the XXXX ALTN page from <ENG OUT to <ALL ENG certainly won't ERASE the current MOD.
This makes no sense.
Perhaps it's just an "arming" function that may activate the E/O mode when I push DIVERT NOW>?
(5L is blank when DIVERT NOW is selected and not executed yet.)
If I read Honeywell's cryptic description, I guess pushing 5L won't change the status from ACT to MOD but it just changes the performance conditions for the ETA/fuel calculations on the ALTN pages.
But then the line title should indicate the current mode, e.g. like this:
all eng mode
<ENG OUT
eng out mode
<ALL ENG
Regards,
|-|ardy