What was found
RHI/MXP - NR 1 ENGINE WOULD NOT ATTAIN REQUIRED THRUST FOR T/OFF. WOULD ONLY ATTAIN 108.5 AGAINST THE STOP. ALL OTHER INDICATIONS NORMAL. NR 3 ENG WOULD NT ATTAIN REQUIRED THRUST FOR T/OFF. WOULD ONLY ATTAIN 110.0 AGAINST THE STOP. ALL OTHER INDICATIONS NORMAL. REJECTED TAKEOFF. NR 1 ENGINE PERFORMED PNEUMATIC LEAK CHECK. NOTED RELIEF VALVE WITH EXCESSIVE LEAK. R & R ENG NR 1 RELIEF VALVE UNIT IAW MM 36-12-00. PERFORMED NR 1 THRUST CONTROL CABLE CHECK IAW MM 76-71-00. NR 3 PERFORME PNEUMATIC LEAK, NOTED PVR CLAMP LEAKING, RETORQUED CLAMP. PERFORMED NR 3 THRUST CONTROL CABLE CHECK IAW AMM 76-11-00. PER MCC ADJUSTED MAIN ENG CONTROL PART POWER TRIM 1-TURN CW IAW MM 71-00-00 TEST 5. (M)