alfredbmor

For safety reasons I would send the system for service, but I'd like to share some thoughs.
I think that basically the Rx are loosing contact with the Tx so I would check the battery drain and maybe change the switch. If your battery and switch were involved in a prior crash then you should change them. There are other facts that could lead to interference like antena placement and Rx placement inside the plane. But as I said I would send the system just for safety reasons.