What was found
CAPTAIN'S RADIO - AND OR PANEL HAS SOME TYPE OF FAULT THAT KEEPS THE RADIO TUNED AND MIC OPEN. REPLACED CAPTAIN'S RTP ASSY, NOW OKAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CAPTAIN'S RADIO - AND OR PANEL HAS SOME TYPE OF FAULT THAT KEEPS THE RADIO TUNED AND MIC OPEN. REPLACED CAPTAIN'S RTP ASSY, NOW OKAY.