I purshased the Aermacchi MB-339 a while back, but never got to use it until yesterday. The problem is that I got a clicking sound when sitting in the cockpit that I have no idea how to shut off. First I thought I've accidentally had the magneto swich on my Yoke on to "both", but no, so I've tried almost every switch in the cockpit with no success. Any idea of what causing this clicking sound?

I don't have the MB-339 but I was previously getting a ticking sound which I discovered was the ignition key constantly turning back and forth in those aircraft which had one. Maybe a similar issue, maybe not. In my case it went away after the UK update, I posted about it here, for what it's worth.

Thanks 109Sqn for the suggestion, but that wasn't the case for me, but the sound strogly resembles the sound I'm getting when the ignition key constantly turning back and forth when I has forgotten the key on start position.

Hmmm, so it might be the same problem but being caused by something else. Hopefully it goes away with an update if not before.🤞

its the trim clacker

JEPETER2, I thought you had to have the AP on for it to be the the the trim clacker?   

No issue like that for me

I finaly solved it. It was my Honecomb Bravo throttle that was the culprit. As soon I disconnected the Bravo thottle and plugged in my Thurstmaster Warthog throttle instead, the clicking sound dissapeared 😁. Or to be fair, the culprit could be bad coding in the MSFS 2020 or in the MB-339. But at this time, in the light of recent event with the sim, my money is on the MSFS 2020 😉

Edited March 21, 20215 yr by Cloudpiercing