Test No.13 : Pretested Replacement Engine Test [IAE]

TASK 71-00-00-700-011-B
Test No.13 : Pretested Replacement Engine Test

ZONE: 210

1. Reason for the Job
You can use this test to do a check of an engine installed for the first time and tested before in the test cell.
You can use this test to make sure that the engine data and acceleration/deceleration rates are correct.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
98F10103500000	2	CHOCK-MLG,ENGINE RUN-UP

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-700-013-A	Procedure to Dry Out the High Pressure Turbine (HPT) after Oil Contamination
TASK 71-00-00-710-012-B	Test No.3 : Idle Leak Check
TASK 71-00-00-710-013-C	Test No.11 : High Power Assurance Test
TASK 71-00-00-710-018-A	Discontinued Start, Restart and Shutdown Procedures
TASK 71-00-00-710-043-A	Normal Engine Automatic-Start Procedure
TASK 71-00-00-710-047-A	Normal Engine Manual-Start Procedure
TASK 71-00-00-860-010-B	Engine Operation Limits, Guidelines and Special Procedures
TASK 71-00-00-860-011-C	Table of Idle Indications
TASK 71-00-00-860-011-C-01	Table of Idle Indications
TASK 71-00-00-860-011-C	Table of Idle Indications
TASK 71-00-00-860-011-C-01	Table of Idle Indications
TASK 71-00-00-860-012-A	Engine Safety Precautions
TASK 78-31-00-710-041-A	Operational Test of the Thrust Reverser System with the CFDS
TASK 78-31-00-710-041-A-02	Operational test of the Thrust Reverser without the CFDS and Engine Running
Tool Installation
Idle N2 percent
V2527 and Lower Rated Models 90% MAX CLIMB Rating - EPR Target for Acceleration Check
V2530 and Higher Rated Models 90% MAX CLIMB Rating - EPR Target for Acceleration Check

3. Job Set-up
Subtask 71-00-00-710-206-A ** ON A/C NOT FOR ALL

A. Make sure the dry out procedure for the High Pressure Turbine is necessary.
(1) Do the dry out procedure, if necessary, for the HPT (Ref. AMM TASK 71-00-00-700-013).

Subtask 71-00-00-710-122-A ** ON A/C NOT FOR ALL

CAUTION: DURING GROUND RUNNING, CONCERN FOR FAN BLADE INTEGRITY PROHIBITS STABILISED ENGINE OPERATION IN THE FOLLOWING SPEED RANGE:

FOR PRE-SCN17/V A/C: DO NOT STABILISE THE ENGINE BETWEEN 61% TO 74% N1 SPEED RANGE
FOR POST-SCN17/V A/C: STABILISED OPERATION OF THE ENGINE BETWEEN APPROXIMATELY 60% TO 74% N1 SPEED RANGE (LIMITS ARE A FUNCTION OF OUTSIDE TEMPERATURE) WILL BE PROHIBITED BY THE EEC, AS THE SOFTWARE INCLUDES THE KEEP-OUT-ZONE FOR ON-GROUND, STATIC OPERATION.

B. Do these tests:

NOTE: For general information refer (Ref. AMM TASK 71-00-00-860-012) and (Ref. AMM TASK 71-00-00-860-010).

(1) Make sure that the 98F10103500000 CHOCK-MLG,ENGINE RUN-UP are in position in front of each forward outboard MLG wheel.

Tool Installation ** ON A/C NOT FOR ALL

NOTE: There must be two qualified persons in the cockpit when performing an engine run. One must monitor the outside and the aircraft behavior while the other performs the engine test.

NOTE: If the aircraft begins to move while performing an engine run, immediately set all the thrust levers to idle position.

(2) Start both engines as specified in the Normal Engine Automatic Start procedure (Ref. AMM TASK 71-00-00-710-043) or the Normal Engine Manual Start procedure (Ref. AMM TASK 71-00-00-710-047).

NOTE: It is necessary in this test that engine 1 and engine 2 be operated at the same time to give a thrust balance on the aircraft.

(3) Do an idle leak check (Ref. AMM TASK 71-00-00-710-012).
(4) Do not continue to operate the engines if any indications are unusual (Ref. AMM TASK 71-00-00-860-011).
(5) Switch the air conditioning packs off.
(6) Let the engines become stable at MIN IDLE for five minutes.
(7) Make a record of EPR, EGT, N1, N2, FUEL FLOW, TLA, Oil Quantity, Oil Pressure, Oil Temperature, N1 Vibration, N2 Vibration. Refer to the idle test tables (Ref. AMM TASK 71-00-00-860-011) and (Ref. AMM TASK 71-00-00-860-011).
(8) Do not continue to operate the engines if any indications are unusual.

4. Procedure
Subtask 71-00-00-860-052-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) The thrust of the engine which is not tested must be equal to 1.08 Engine Pressure Ratio (EPR).
(2) Slowly increase the power of the tested engine to 1.25 EPR (or the nearest EPR required to ensure that the engine is at or above 75 percent N1) and let the engine become stable for two minutes.

NOTE: Ignore the ECAM warning message "ENG THR LEVERS NOT SET" during acceleration/deceleration steps.

(a) Make a record of the EPR, Exhaust Gas Temperature (EGT), N1, N2, FUEL FLOW, TLA, Oil Quantity, Oil Pressure, Oil Temperature, N1 Vibration and N2 Vibration for the test engine. Refer to the high power assurance test tables (Ref. AMM TASK 71-00-00-710-013).
(b) Do not continue to operate the engines if any indications are unusual.
(3) Decrease the speed of the both engines to the MIN IDLE. Stay at the MIN IDLE for one minute.
(4) Do the check of the Nacelle Anti-Icing (NAI) system.
(a) Make a record of N2.
(b) Make a selection of Nacelle Anti-Icing (NAI) ON.
1 Make sure that the ON legend comes on.
2 Make sure that N2 increases.
3 Make sure that the IGNITION and the ENG A.ICE messages appear on the upper ECAM Display Unit (DU).

NOTE: The continuous ignition system is ON when the NAI system is ON.

(c) Make a selection of NAI OFF.
1 Make sure that the ON legend goes off (not illuminated).
2 Make sure that N2 decreases to the MIN IDLE.
3 Make sure that the IGNITION and the ENG A.ICE messages disappear from the upper ECAM DU.
(5) Do the check of the Wing Anti-Icing (WAI) system.

NOTE: The ignition system does not go ON when the WAI system goes ON.

(a) Make a record of N2.
(b) Make a selection of the WAI ON.
1 Make sure that the ON legend comes on.
2 Make sure that N2 increases.
3 On the ECAM lower DU, make sure that the ANTI-ICE legends come on.
(c) Make a selection of WAI OFF.
1 Make sure that the ON legend goes off (not illuminated).
2 Make sure that N2 decreases to the MIN IDLE.
3 On the ECAM lower DU, make sure that the ANTI-ICE legends go off.
(6) Do an acceleration / deceleration check (optional).
(a) Move the thrust lever of the test engine to set the equivalent of approach idle N2, noting the engine thrust lever is unlikely to be in the idle detent.

Idle N2 percent ** ON A/C NOT FOR ALL

NOTE: If the engine has operated at power above 1.25 EPR just before this check, operate the engine at the IDLE EPR for 15 minutes before you continue this check.

(b) Move the thrust lever of the engine which is not being tested to set 1.08 EPR.
(c) Do sudden acceleration of the test engine and measure the time.

NOTE: Ignore the ECAM warning message "ENG THR LEVERS NOT SET" during acceleration/deceleration steps.

1 Move the thrust lever forward as soon as possible to increase the engine speed from the IDLE to the MAX CLIMB detent.
2 Stop the timer when the EPR reaches the timing level EPR target of 90% MAX CLIMB.
For V2527 and lower rated engine models:

V2527 and Lower Rated Models 90% MAX CLIMB Rating - EPR Target for Acceleration Check ** ON A/C NOT FOR ALL

For V2530 and higher rated engine models:

V2530 and Higher Rated Models 90% MAX CLIMB Rating - EPR Target for Acceleration Check ** ON A/C NOT FOR ALL

3 Do a check to make sure that the acceleration time is 6.2 seconds or less.
4 Let the engine become stable at the MAX CLIMB for one minute.
(d) Do a sudden deceleration and measure the time.
1 As quickly as possible, move the thrust lever from the MAX CLIMB detent to the MIN IDLE position.
2 Measure and make a record of the time for deceleration to the 1.10 EPR.
3 Do a check to make sure that the deceleration time is 7 seconds or less.
(7) Move the thrust lever of the engine which is not being tested to the MIN IDLE.
(8) Operate the engines at the MIN IDLE for one minute.
(9) Do a check of the N1 Mode Selection.
(a) Set the N1 Mode Selector on the overhead panel to ON.
1 Check that the N1 rated mode is indicated and that the N1 value comes into view.
(b) Increase the both engines to 75 PERCENT N1.
(c) Set the N1 Mode selector on overhead panel to OFF.

NOTE: A small change in engine operation indicator values may be noticed.

1 Check that the EPR Mode is indicated and that the EPR value comes into view.
(d) Move the thrust levers of the both engines to the MIN IDLE.
(10) Operate the both engines at the MIN IDLE for five minutes to permit them to become cool.
(11) Do a check of the thrust reverser system for the test engine.

NOTE: You may use the operational test of the thrust reverser system (Ref. AMM TASK 78-31-00-710-041) or you may use this procedure:

(a) Deploy the thrust reverser of the tested engine.
1 Check for usual operation.
(b) Stow the thrust reverser.
1 Check for usual operation.

5. Close-up
Subtask 71-00-00-860-053-A ** ON A/C NOT FOR ALL

A. Do a shutdown as specified in Discontinued Start, Restart and Shutdown Procedure (Ref. AMM TASK 71-00-00-710-018).

[Rev.10 from 2021] 2026.04.01 02:28:24 UTC