As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLT 0016 - IN-FLIGHT FLICKERING LEFT GENERATOR DRIVE LIGHT ON WITH LEFT EICAS IDG TEMP SENSOR LIGHT. GENERATOR OFF LIGHT CAME ON INTERMITTENTLY. LEFT IDG WAS DISCONNECTED. REPLACED LT IDG. RAN ENGINE, ALL PARAMETERS CK NORMAL. RECONNECTED IDG. LEAK CK OK. (X)