737ng WPT and STA data

[framer]

Hi ,
Does anyone know the source of the WPT and STA information that can be displayed on the Nav Display ?
I had thought it would be stored in the FMC Navigation database but have recently read something that causes me to doubt this.
Cheers

[BOAC]

Wherever it is, it is updated by the regular 'database updates'. Can you expand on what you have 'read'?

[framer]

Hi BOAC,
The MRG app says that with a dual FMC failure WPT and STA will be available on the ND map display. This surprises me and I'm trying to figure out if it's accurate.
Cheers