As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE, DMI CIRCUIT BREAKER CONTINUED TO TRIP. REMOVED TRANSCEIVER TO TROUBLESHOOT AND FOUND METALLIC TAPE OVER ENTIRE FACE OF CONNECTOR PINS. INSTALLED NEW TRANSCEIVER. OPS CHECKS GOOD. REFERENCE: OPERATOR CONTROL NR 96038-931ML-01, ZJ4R702M. (X)