As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EVIDENCE OF OIL LEAK NR 2 ENGINE INBOARD T/R SLEEVE. NR 2 ENGINE IDG HAS NO OIL IN SIGHT GLASS. GROUNDED-YES. REMOVED & REPLACED NR 2 ENGINE IDG AIR/OIL COOLER LEAK CHECK GOOD, REF B737-800 AMM 24-11-21. IDG OIL SERVICED TO FULL, REF B737-800 AMM 12-13-21. ACCOMP ENGINE RUN NO LEAKS NOTED, OK FOR SERVICE.