As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MSGS L GEN DRIVE LGT DID NOT ILLUM WITH ENG SHUTDOWN. REPLACED NR1 ENG IDG. FLEW ONE SEGMENT AND FOUND L ENG IDG WITH MULTIPLE HOLES, DIFF PRESS INDICATOR POPPED. DRAINED IDG OIL, SMELLED NO EVIDENCE OF FUEL. MOTORED ENGINE TO ENSURE IDG DISCONNECTED. INSPECTED AREA AROUND IDG AND COWLING, NO OTHER DEFECTS FOUND. REPLACED NR1 ENG IDG.