I have 2 AFS-5600's with the red box Magnotometer/AHRS units. The units are located in the rear empennage area near the top.
My issue is that when I make a right turn over 45 degrees and then level out, the EFIS does not come back to level and continues to show a turn. I did check the wiring to see if anything was loose and did not find anything. They work perfectly when doing normal procedures, it is just when the bank angle gets to far. They can be reset in the air and they come back to life as intended. What is also weird is that both of EFIS's do this.

Any ideas on what to check on this?

Thanks
Brian