What was found
LEFT ENGINE FAILED TO ACCELERATE DURING TAKE OFF. AUTOTHROTTLES WERE ENGAGED. REMOVED AND REPLACED THE FUEL PUMP IAW MM 73-11-01, REMOVED AND REPLACED THE FUEL METERING UNIT IAW MM 73-21-01. PERFORMED TEST 2A LEAK TEST, WET MOTOR TEST, TEST 3 IDLE POWER, TEST 6 EEC IDLE CHECK, TEST 15 EEC GND TEST, AND TEST 4 POWER ACCELERATION/DECELERATION. ALL TEST AND PARAMETERS NORMAL IAW AMM 71-00-00,