Intermittent AHRS fail

[YCCA]

Update... Pulled every box in the rack in the tail cleaned and dried and the problem still exists.. Does anyone know what box would need be replaced to fix this?

[AndrewM]

Jeffrey, did you try the connectors to the PFD/MFD display panel(s) / screen(s)? That is where the issue was for me...

[YCCA]

Jeffrey, did you try the connectors to the PFD/MFD display panel(s) / screen(s)? That is where the issue was for me...

Yeah we tried that as well. Plane going in tomorrow to get a new AHRS

[ThomasD]

Had that problem; replaced the AHRS and loads else; hours and hours with various avionics shops including Diamond Canada [who did not find/fix the problem].
In my case it turned out to be 'simply' a wiring problem: poor crimps on the connectors between the magnetometer and the AHRS. There are 4 connectors between the magnetometer in the right wing and the AHRS in the rack in the back: the avionics shop did a gentle pull test on each of the four wires on the 4 connectors and two wires just pulled straight out of their crimps. Re-crimped and all good after. So you may want to look at the connectors first.

[elmanzah]

I used to rent a 2005 DA40 where there were frequent loss of AHRS. I do recall some explanation that didn't make sense and I don't care to repeat it here. It was very frustrating. I don't know if the link below can help provide a path to discovering the issue.

http://www.aero-news.net/index.cfm?do=m ... df9e760695