Greetings,
We’ve been having an ongoing RTRU issue that only occurs in flight, usually a couple of times during touch and gos/takeoff. TR3 load will drop below 5, kick out a fail for 2-3 seconds then recover and go back to functioning properly. A few things we’ve changed include the TR unit, BIU, as well as the associated diode.
Was curious if anyone has seen a similar issue or has any input on potential culprits. All meter readings weve checked have been good, as it does not fail on ground.