What was found
#1 ENGINE OIL TREND DATA SHOWS OIL CONSUMPTION TO GREATER THAN EXPECTED. ENGINE POWER RUN REQUIRED. GROUNDED - YES. OPENED #1 ENG COWLING REF B737-900 AMM 71-11-02. ACCOMP TSR STEP 1, NO OBVIOUS SOURCE OF LEAKS FOUND. BAGGED ALL OIL DRAIN LINES. ACCOMP VENTS & DRAIN INSPECTION #1 ENG REF AMM 71-71-00-200-801-F00. FOUND LEAKS AT IDG PAD DRAIN & N2 DRIVE PAD DRAIN. REMOVED & REPLACED IDG DRIVE PAD SEALOL SEAL & N2 DRIVE PAD SEALOL SEAL REF AMM 72-60-00. REINSTALLED HANDCRANK COVER REF AMM 72-63-01-400-801-F00. LEAK CHECK GOOD. RE-INSTALLED IDG REF AMM 24-11-11-400-801. LEAK & OPS CHECKED GOOD. RE-ACCOMPLISHED VENTS & DRAIN INSPECTION REF AMM 71-71-00-200-801-F00. NO LEAKS FOUND.