What was found
#1 ENGINE OIL TREND DATA SHOWS OIL CONSUMPTION TO GREATER THAN EXPECTED. ENGINE POWER RUN REQUIRED. GROUNDED - YES. FOUND EVIDENCE OF OIL LEAKING FROM IDG PAD DRAIN LINE. PERFORMED IDLE ENGINE RUN AND FOUND ACTIVE LEAK FROM IDG PAD DRAIN OF 7 DROPS PER MINUTE, WITH ENGINE AT IDLE. LEAKING IDG DRAIN PAD DEFECT. REMOVED & REPLACED #1 ENG IDG REF B737-800 AMM 24-11-11. REMOVED & REPLACED #1 ENG IDG SEALOL SEAL REF AMM 72-60-00. NO LEAKS NOTED OPS CHECK GOOD. (REF ASA L/P 60403486).