Press the MEMU botton on the MCDU
Press 1R and your in STANDBY NAV RAD
You can enter a VOR Freq and course and an ILS freq and course.
You don't need FMS only one MCDU.
When both FMS fail you have STANDBY NAV RAD as a backup to get to your destination.
I had to check the manual as it has been awhile since I've been on this plane.![]()
I am fully aware of the Standby NAV/RAD function, but the original question was about dispatching an Aircraft W/O an FMS and as PCL put it, you can't dipatch a 717 without the FMSesess. (sic)