As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE IDG AIR/OIL COOLER LEAKING OIL. ACFT GROUNDED. REMOVED AND REPLACED THE NR 1 ENGINE IDG AIR/OIL COOLER IAW AMM 24-11-21-000-801 FOR REMOVAL AND AMM 24-11-21-400-801 FOR INSTALLATION ACCOMPLISHED TEST 3A IDLE POWER LEAK CHECK IAW AMM 71-00-00-700-801-F00. LEAK CHECKED GOOD.