[A380X] NO DH Sometimes Shown When Not Desired

[tracernz]

Simulator

2020

Aircraft Version

Stable (8k)

Build info

master

Describe the bug

NO DH is sometimes shown when not desired.

Expected behavior

Current thoughts are same as A320/30/40/50 => needs an explicit NONE/NO/NODH/NO DH entry in the radio field, but A380 FCOM does say something different...

Steps to reproduce

Enter baro mins or nothing and go within 250 NM of dest in cruise phase. The NO DH flag is transmitted by the FMS and will be visible on the PFD.

References (optional)

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Additional info (optional)

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Discord Username (optional)

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[juliansebline]

What does the A380 FCOM say?

[dzoeteman]

I wonder if this is just confusingly worded in the FCOM; it says if the crew has not defined a minimum, it'll show NO DH. It still says that the crew should enter one of the NO DH strings into the FMS. A350 FCOM does not mention the 'has not defined a minimum' bit.

[juliansebline]

I wonder if this is just confusingly worded in the FCOM; it says if the crew has not defined a minimum, it'll show NO DH. It still says that the crew should enter one of the NO DH strings into the FMS. A350 FCOM does not mention the 'has not defined a minimum' bit.

I've never observed an automatic NO DH displayed on the real airplane. Maybe after a certain altitude? Maybe 400ft RA when LAND is displayed?