As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - CAPTAIN'S SIDE ND FLICKERS BETWEEN WX + TERRAIN WHEN TERRAIN SELECTED. // DURING T/S FOUND FLICKERING ONLY OCCURS WHILE WXR 2 IS ON. REMOVED AND REPLACED #2 WXR TRANSCEIVER IAW AMM 34-41-33 PB 401 CONF 01 OPS TEST GOOD, FLICKERING BETWEEN WX AND TERR HAS STOPPED.