What was found
REF L/P 60557593 FOR #1 ENGINE LEAK. PERFORMED ACTIONS ON TSR 714232, FOUND RESIDUAL FUEL BUILD-UP ON TBV, RH VSV AND HPTACC. LEAK RATE FOUND TO BE LESS THAN 40 DROPS PER MIN. REPLACEMENT OF TBV, R/H VSV AND HPTACC REQUIRED WITHIN 25 FLIGHT CYCLES. GROUNDED - YES. REMOVED AND REPLACED #1 ENG HPTACC VALVE REF B737-900 AMM 75-21-01. OPS CHECKED GOOD. NO LEAKS. REMOVED AND REPLACED #1 ENG TBV REF AMM 75-23-01. OPS CHECK GOOD NO LEAKS. REPLACED THE #1 ENG R/H VSV ACTUATOR PER AMM 75-31-01. LK AND OPS CHECKS GOOD.ETOPS GROUND VERIFICATION SUCCESSFUL.