What was found
ON DEPARTURE FROM DTW THE FO'S AUDIO PANEL FAILED. THE FLIGHT RETURNED TO DTW WITHOUT FURTHER INCIDENT. CLEANED CAB RP SWITCH.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON DEPARTURE FROM DTW THE FO'S AUDIO PANEL FAILED. THE FLIGHT RETURNED TO DTW WITHOUT FURTHER INCIDENT. CLEANED CAB RP SWITCH.