Preliminary Requirements

Procedure

1. Ground Test Requirements after Power Plant/Module/Component Repair or Replacement

   1. Description of the tests.

      1. The test requirements in this section must be used after the repair replacement or installation of modules or components. This will make sure that the engine is safe and serviceable.

      2. The applicable tests are listed below.

         TEST NO. 1 - TASK 71-00-00-700-001 (TESTING-001) - Dry Motor Leak Check

         TEST NO. 2 - TASK 71-00-00-700-002 (TESTING-002) - Wet Motor Leak Check

         TEST NO. 3 - TASK 71-00-00-700-003 (TESTING-003) - Idle Leak Check

         TEST NO. 4 - TASK 71-00-00-700-004 (TESTING-004) - Oil System Static Leak Check

         TEST NO. 5 - TASK 71-00-00-700-005 (TESTING-005) - Not Applicable

         TEST NO. 6 - TASK 71-00-00-700-006 (TESTING-006) - EEC System Idle Test

         TEST NO. 7 - TASK 71-00-00-700-007 (TESTING-006) - Break-In of a Newly Overhauled Engine/Module

         TEST NO. 8 - 71-00-00-700-008 (TESTING-008) - Vibration Survey

         TEST NO. 9 - TASK 71-00-00-700-009 (TESTING-009) - LP Compressor (Fan) Trim Balancing

         TEST NO. 10 - TASK 71-00-00-700-010 (TESTING-010) - Performance Test

         TEST NO. 11 - TASK 71-00-00-700-011 (TESTING-011) - Set Jumpers in Data Entry Plug

         TEST NO. 12 - TASK 71-00-00-700-012 (TESTING-012) - Functional Test

   2. Power Plant/Module/Section repair or replacement test requirements

      MODULE/SECTION	NECESSARY TEST(S)
      Complete Power Plant (refurbished)	1,2,3 and 6 (in sequence then 7 and 10)
      Fan Module	10
      LP Compressor Module/Intermediate Case Module	10
      Intermediate Case and Gearbox Drive Module	3 and 10
      Fan Case Section	3 and 10
      HP Compressor Module	3 and 10
      No.4 Bearing and Combustor Section	3 and 10
      HP Turbine Module	3 and 10
      LP Turbine Module	3 and 10
      Turbine Exhaust Case Module	3
      External Gearbox Module	3 and 6

   3. Power Plant Module removal and installation without overhaul, rework, repair or replacement.

      MODULE/SECTION	NECESSARY TEST(S)
      Fan Module	3 and 12
      LP Compressor Module	3 and 12
      Intermediate Case Module	3 and 12
      Fan Case Section	3 and 12
      HP Compressor Module	3 and 12
      No. 4 Bearing and Combuster Section	3 and 12
      HP Turbine Module	3 and 12
      LP Turbine Module	3 and 12
      Turbine Exhaust Case Module	3
      External Gearbox Module	3 and 6

   4. Component repair or replacement test requirements

      1. At times, fuel, oil, or electrical lines must be disconnected to give access to the component which must be repaired or replaced. If the lines are disconnected, more tests are required.

         1. If fuel lines are disconnected, Test No. 3 is required.

         2. If oil lines are disconnected, Test No. 3 or 1 is required.

         3. If electrical harnesses are disconnected, Test No. 6 is required.

            NOTE

            If there is a selection of tests (example: 3 or 1), the first test shown is recommended. If two tests are shown (example: 3 and 9), the two tests are necessary.

            NOTE

            When checking fuel system hardware for leaks, a dry motor check, refer to TASK 71-00-00-700-001 or a wet motor leak check, refer to TASK 71-00-00-700-002, may be used.

            These checks must be followed by an idle leak check, refer to TASK 71-00-00-700-003.

            COMPONENT	NECESSARY TEST(S)
            IGNITION SYSTEM
            Ignition Exciter, Ignition Lead or Igniter Plug	Operational Test of
            	the Ignition System
            	(refer to A5 AMM TASK
            	74-00-00-710-041-A)
            OIL SYSTEM
            Oil Tank	3
            Oil Tank Valve	3
            Fuel-Cooled Oil Cooler	3 or 1
            Air-Cooled Oil Cooler	3 or 1
            Pressure Oil Pump/Filter Housing	3 or 1
            Pressure Oil Filter Element	3 or 1
            Scavenge Oil Pump and Filter Housing	3 or 1
            Scavenge Oil Filter Element	3 or 1
            Deoiler	3
            Pressure Oil Tubes	3 or 1
            Scavenge Oil Tubes	3
            No. 4 Bearing Compartment Scavenge Valve	7
            No. 5 Bearing Compartment Cover	3
            Oil Temperature Thermocouples	3
            Oil Quantity Transmitter	3
            Oil Pressure Switches or Transducer	3
            Sight Glass	No test is necessary
            STARTING SYSTEM
            Valve Position Indication Switch	No test is necessary
            Starter or Starter Valve	Functional check of
            	the starter
            Starter Duct	No test is necessary
            FUEL SYSTEM
            Fuel Pump	3 or 1
            Fuel Filter Element	3 or 1
            Fuel Nozzle	3 or 2
            Fuel Diverter and Return Valve	3 or 1
            Fuel Distribution Valve	3 or 2
            Fuel Metering Unit (FMU)	3 or 2
            Fuel-Cooled Oil Cooler	3 or 1
            Fuel Manifold	3 or 2
            Fuel Tubes (before the FMU)	3 or 1
            Fuel Tubes (after the FMU)	3 or 2
            Fuel Pressure Switches	3 or 1
            IDG Fuel-Cooled Oil Cooler	3 or 1
            Fuel Flow Transmitter	3 or 2
            Fuel Temperature Sensor	3 or 1
            ELECTRONIC CONTROL SYSTEM
            Electronic Engine Control (EEC)	6
            Engine Dedicated Alternator	6
            ELECTRICAL HARNESSES
            EEC Harness - Fan	6
            EEC Harness - Core	6
            ENGINE INDICATING
            N1 Speed/Trim Balance Probe	3, 6, 8 and 12
            P2/T2 Sensor and Tubes	No test is necessary
            P3/T3 Sensor	No test is necessary
            P4.9 Sensor and Manifold	No test is necessary
            Vibration Transducer	3
            EGT Harness or Thermocouple	3
            AIR SYSTEMS
            No. 4 Bearing Compartment Air Cooler and Tubes	No test is necessary
            Turbine Cooling Tubes	No test is necessary
            Stage 10 to HPT Air Valve	No test is necessary
            Stage 10 Air Solenoid Valve	No test is necessary
            HP/LP Turbine Active Clearance Control Ducts	No test is necessary
            and Manifolds
            Active Clearance Control Valve	No test is necessary
            Active Clearance Control Actuator	3 or 1
            Ignition Cooling Tubes and Housing	No test is necessary
            AIRFLOW CONTROL SYSTEMS
            LP Compressor Bleed Master and Slave Actuators	3 or 1 and 7
            Variable Stator Vane Actuator	3 or 1 and 7
            HP Compressor Stage 7 Solenoid Valve	3 (See NOTES)
            HP Compressor Stage 7 Bleed Valve	3 (See NOTES)
            HP Compressor Stage 10 Solenoid Valve	3
            HP Compressor Stage 10 Bleed Valve	3