As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOLLOW-UP TO NR 2 ENGINE IDG FREQUENT SERVICING. ACFT GROUNDED. CLEANED IDG AND RAN ENGINE FOR 10 MINS INSPECTED IDG FOUND THE VENT WAS LEAKING. REPLACED IDG VENT VALVE IAW 24-11000-700-804. REPLACED IDG SERVICE FITTING IAW 24-11-00. RAN ENGINE AGAIN NO LEAKS NOTED AT THIS TIME.