There is no fuel flow on all engines despite changing the fuel flow power supply unit, the fuel flow still doesn't indicate in the flight deck.
All fuel indicators are servicable.
The aircraft model is a C-130H
This particular sbag has been disturbing the team for the oast few weeks. What could be the cause, we have replaced the control unit, antenna and also TR unit. Checked every component in the system for serviceability but it still persists.