As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF ASA TSR714030, #1 ENG IDG PAD DRAIN OIL LEAK OUT OF LIMITS PER B737-900 AMM 71-71-00-200-801-F00. GROUNDED - YES. REMOVED IDG REF B737-900 AMM 24-11-000-801. REMOVED SEALOL SEAL AND INSTALLED NEW SEALOL SEAL REF AMM 72-60-00-000-802-F00 AND 72-60-00-400-802-F00. REINSTALLED #1 IDG REF AMM 24-11-11-400-801. OPERATIONAL TEST GOOD NO FURTHER LEAKS NOTED.