As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN REPORTED THAT AFTER START ENGS, THE EICAS MSG ELEC GEN SYS R WAS SHOWN & THE RT DRIVE LIGHT TURNED ON. DURING MAINTENANCE REVISION, AN OIL LEAK WAS DETECTED IN THE INTEGRATED DRIVE GENERATOR SEALS DRAIN. THE RT INTEGRATED DRIVE GENERATOR WAS DEFERRED IAW MEL 24-11-01 CAT C. REPLACED THE RT INTEGRATED DRIVE GENERATOR IAW AMM 24-11-01, TESTED CORRECT.