As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOLLOW-UP TO #2 IDG CONTINUED FREQUENT SERVICING. (#PRI2/ETOPS). GROUNDED - YES. PERFORMED IDG UNSCHEDULED REMOVAL FOR CAUSE REF B737-800 AMM 24-11-11. NO CONTAMINATION FOUND. REMOVED AND REPLACED IDG IAW AMM 24-11-11. NO DEFECTS NOTED. NO LEAKS FOUND. PERFORMED IDG INSTALLATION TEST REF AMM TASK 71-00-00-800-811-F00, 3 AND TASK 24-11-00-700-803. TEST COMPLETED WITH NO DEFECTS. IDG SERVICED TO FULL REF AMM 12-13-21.