Incoming audio can only be heard in the left ear. Audio from the Auxiliary Audio Jack is still heard properly in both ears.
More often than not this problem is actually a setting issue and not the result of a faulty or damaged microphone.
1. On the cord, near where the microphone plugs into the aircraft is a junction box (this is the place where the main cord splits into two smaller cords with plugs). On the junction box is a switch with either a One Dot or a Two Dot position. This switch refers to the type of comm panel being used, either mono or stereo, it does not refer to the number of ears you will hear audio in (you should always hear audio in both ears).
2. Make sure the switch is set in the One Dot position.
3. If step 2 does not fix the issue, try cycling the switch several times before setting it in the One Dot position. This will help to clear any obstructions that may be blocking the contacts.
4. If neither solutions 2 or 3 resolve the issue, you will likely need to send the microphone in for repair. Please see our repair instructions on the Service & Repair page or contact us for more assistance.