What was found
CAPT RADIO PUSH-TO-TALK SWITCH ON YOKE INOP. XFER TO MEL. :566-0590 ON AOG H6083. SWITCH PCN 566-0590 PAC ORDERED ON OSTF L6164. 1 EA 566-0590 IN HLD 1. REPLACED SWITCH, NO HELP. TRIED NEW AUDIO CONTROL PANEL AND AUDIO MANAGEMENT UNIT, ALSO NO HELP. NEEDS MORE TIME TO T/S. T-S FOUND CAPT MIC PTT SW D2103J PIN NR 3 TO CAPT ACP PNL DM23009 PIN NR 9 WIRE OPEN PER WDM. NEED MORE TIME. IN REF TO WD 23-51-12, FOUND WIRES QD9 AND QD7 WERE MISWIRED BY THE CAPT'S YOKE. WIRED THEM CORRECTLY AND SYSTEM CHECKS OKAY NOW.