As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - F/O HSI INOP HAPPEN ON TAXI OUT. CLEANED CONNECTOR CONTACTS ALL OPS NORMAL OK FOR SERVICE FOUND DEBRIS ON CONTACTS OF CONNECTOR. CLEANED CONNECTORS, PERFORMED TEST 30 MCDP, ACFT REMAINS LAND 3 FIM 34-22-00 AMM 34-22-02/201. OK FOR SERVICE ALL TESTS NML.