As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENG IDG EICAS, RTFL. RIGHT IDG DRIVE LIGHT ILLUMINATED ON CLIMB. CREW REDUCED THE POWER ON THE RIGHT ENGINE AND THE DRIVE LIGHT WENT OUT. AT THIS TIME THE IDG IS NOT DISCONNECTED. FOUND IDG OVERSERVICED. REPLACED NR 2 ENG IDG. REPLACED NR 2 ENG IDG DRIVE OIL SEAL. RAN ENGINE AT HIGH POWER. SYS CHECKS GOOD. NO OIL LEAKS NOTED.