What was found
DURING FLIGHT 3169, AFTER TAKEOFF THE F/O'S AUDIO CONTROL PANEL BECAME INOP. AIR RETURN TO DTW. MAINTENANCE REMOVED AND REPLACED F/O'S ACP P/N 502-0011-003, SN/ON 0287, SN/OFF 0159. ALL CHECKS GOOD IAW SF340 MM CHAP 23.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING FLIGHT 3169, AFTER TAKEOFF THE F/O'S AUDIO CONTROL PANEL BECAME INOP. AIR RETURN TO DTW. MAINTENANCE REMOVED AND REPLACED F/O'S ACP P/N 502-0011-003, SN/ON 0287, SN/OFF 0159. ALL CHECKS GOOD IAW SF340 MM CHAP 23.