As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, AIRSPEED INDICATOR ON CAPT'S ADI IS INOP THE YELLOW CAUTION BAND JUMPS UP AND DOWN TO THE RED OVERSPEED BAND IN FLIGHT. REMOVED AND REPLACED CAPT'S ADI PER AMM 34-22-03-004-001 AND 34-22-03-404-026, CHECKS OK.