As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW COULD NOT TRANSMIT ON AN FM FREQUENCY THROUGH NR 1 AUDIO CONTROL BOX. MAINT FOUND CONNECTOR PIN SOCKET INSTALLED BACKWARD. THE PART FOR THE WIRE WAS INSTALLED TOWARD THE PIN SIDE, AND THE PIN SIDE HAD THE WIRE CRIMPED INTO IT. THE SOCKET IS SYMMETRICAL. UNIT HAS BEEN LIKE THIS FOR MANY YEARS. (K)