Operational Test of Thrust Reverser with MCDU [PW11]

TASK 78-31-00-710-805-A
Operational Test of Thrust Reverser with MCDU

ZONE: 400

1. Reason for the Job
Use this test to do a check of the thrust-reverser system operation and for bleeding of the thrust reverser system when a hydraulic component is replaced or disconnected.
As an alternative do the Thrust Reverser Cycling Test (Engine Running) (Ref. TASK 78-31-00-710-805-A01).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-012-A	Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 71-00-00-910-804-A	General Warnings and Cautions and Related Safety Data
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
TASK 78-30-00-440-806-A	Reactivation of the Thrust Reverser System for Flight
TASK 78-36-00-410-802-A	Closing of the Thrust Reverser Cowl-Doors
Operational Test of the Thrust Reverser System - MCDU Menu
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
TASK 29-23-00-863-001-A	Pressurize the Green Hydraulic System from the Yellow Hydraulic System through the PTU with the Electric Pump
TASK 29-23-00-864-001-A	Depressurize the Green and Yellow Hydraulic Systems after Operation of the PTU
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
TASK 29-24-00-863-001-A	Pressurize the Yellow Hydraulic System with the Electric Pump
TASK 29-24-00-864-001-A	Depressurize the Yellow Hydraulic System

3. Job Set-up
Subtask 78-31-00-861-059-A ** ON A/C NOT FOR ALL

A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 78-31-00-941-061-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than 5 minutes before you do this procedure.
(c) Put a WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(2) On the ENG section of the maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).

Subtask 78-31-00-840-059-A ** ON A/C NOT FOR ALL

C. Preparation of the Work Area to Do the Procedure
(1) Make sure that the thrust reverser cowl-doors are closed (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)

451AL 452AR

(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)

461AL 462AR.

(2) Make sure that the thrust reverser is reactivated for flight (Ref. AMM TASK 78-30-00-440-806).
(3) Make sure that the fan cowl doors are closed (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)

437AL 438AR

(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)

447AL 448AR.

(4) Make sure that the danger area for forward and reverse operation around the applicable engine is clear of persons and equipment (Ref. AMM TASK 71-00-00-910-804).

Subtask 78-31-00-941-062-A ** ON A/C NOT FOR ALL

D. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
(2) On the lower ECAM Display Unit (DU), get the HYD page. Make sure that the Green (Yellow) pressure is zero.
(3) On the ENG section of maintenance panel 50VU:

Release the FADEC GND PWR/1(2) pushbutton switch (on the pushbutton switch, the ON legend comes on).

NOTE: After the FADEC is energized, wait 10 seconds before you start the test. If you do not wait 10 seconds, the interactive mode stops the EEC self-test and this can cause unwanted faults.

Release the HYD/LEAK MEASUREMENT VALVES/B/G/Y pushbutton switches (on the pushbutton switch the OFF legend comes on).

(4) On FLT CTL panels 23VU and 24VU:

Make sure that the SEC1, SEC2 and SEC3 pushbutton switches are pushed (on the pushbutton switch, the OFF legend is off).

(5) On overhead panel 20VU:

Make sure that the ENG 1(2) FIRE pushbutton switch is in the normal position and guarded.

(6) On the left or right MCDU, get the SYSTEM REPORT/TEST ENG page (Ref. AMM TASK 31-32-00-860-012).

Subtask 78-31-00-865-065-A ** ON A/C NOT FOR ALL

E. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
** ON A/C NOT FOR ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
** ON A/C NOT FOR ALL
121VU	DCV B/ENG1 PWR SUPPLY	103KS1	K44
121VU	DCV A/ENG1 PWR SUPPLY	102KS1	K42
121VU	ENG1/REV/LOCK	1EG1	N44
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
121VU	ICU A/ENG1 PWR SUPPLY	22KS1	R39
** ON A/C NOT FOR ALL
121VU	OIL/PRESS/ENG1	10KC1	N40
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
121VU	ICU B/ENG1 PWR SUPPLY	101KS1	R42
** ON A/C NOT FOR ALL
121VU	DCV A/ENG1 PWR SUPPLY	102KS1	N44
121VU	DCV B/ENG1 PWR SUPPLY	103KS1	Q44
121VU	ENG1/REV/LOCK	1EG1	R44
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R40
121VU	ICU A/ENG1 PWR SUPPLY	22KS1	R38
** ON A/C NOT FOR ALL
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2)
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
** ON A/C NOT FOR ALL
121VU	DCV B/ENG2 PWR SUPPLY	103KS2	K45
121VU	DCV A/ENG2 PWR SUPPLY	102KS2	K43
121VU	ENG2/REV/LOCK	1EG2	N45
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	Q40
121VU	ICU A/ENG2 PWR SUPPLY	22KS2	R40
** ON A/C NOT FOR ALL
121VU	OIL/PRESS/ENG2	10KC2	N42
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19
121VU	ICU B/ENG2 PWR SUPPLY	101KS2	R43
** ON A/C NOT FOR ALL
121VU	DCV A/ENG2 PWR SUPPLY	102KS2	N45
121VU	DCV B/ENG2 PWR SUPPLY	103KS2	Q45
121VU	ENG2/REV/LOCK	1EG2	R45
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	R41
121VU	ICU A/ENG2 PWR SUPPLY	22KS2	R39

Subtask 78-31-00-863-056-A ** ON A/C NOT FOR ALL

F. Pressurization of the Aircraft Hydraulic Systems
(1) Pressurize the hydraulic system:
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
Pressurize the Green hydraulic system with the Yellow hydraulic system through the Power Transfer Unit (PTU) (Ref. AMM TASK 29-23-00-863-001).
On the lower ECAM DU:

Make sure that the HYD page shows that the pressure of the Green system is 3000 psi (206.8427 bar).

(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
Pressurize the auxiliary Yellow hydraulic-system (Ref. AMM TASK 29-24-00-863-001).
On the lower ECAM DU:

Make sure that the HYD page shows that the pressure of the Yellow system is 3000 psi (206.8427 bar).

4. Procedure

WARNING: MAKE SURE THAT THE AREA AROUND THE THRUST REVERSER IS CLEAR OF PERSONS AND EQUIPMENT BEFORE YOU OPERATE IT. THE THRUST REVERSER TRANSLATING SLEEVES MOVE QUICKLY AND CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

Subtask 78-31-00-710-076-A ** ON A/C NOT FOR ALL

A. Do this test:

NOTE: You can do this test through the Channel B of the FADEC 1(2).

ACTION	RESULT
On the center pedestal, on the MCDU:	On the center pedestal, on the MCDU:
1.Push the line key adjacent to the FADEC 1A(2A) indication.	The EEC 1 CHAN A(2A) menu comes into view.
2.Push the line key adjacent to the ENGINE TESTS indication.	The ENGINE TESTS page comes into view.
3.Push the line key adjacent to the THRUST REVERSER TESTS indication.	The THRUST REVERSER TESTS page comes into view.
4.Make sure that the throttle control lever is at the forward idle position. Then, push the line key adjacent to the CYCLING TEST indication.	The THRUST REVERSER CYCLING TEST page 1 comes into view.
5.Push the NEXT key.	The THRUST REVERSER CYCLING TEST page 2 (INITIAL CONDITION) comes into view.
6.Make sure that the Green (Yellow) hydraulic system is pressurized. Then, push the line key adjacent to the START TEST indication.	The CONFIRM START OF TEST page comes into view.
7.Push the line key adjacent to the CONFIRM START OF TEST indication.	The test instruction page comes into view.
8.Move the throttle control lever to the reverse idle position in less than 50 seconds.	On the MCDU, the THRUST TEST IN PROGRESS page comes into view until the thrust reversers are fully deployed or until a period of 10 seconds. On the upper ECAM DU, the REV indication on the N1 indicator of the engine 1(2) is amber when the thrust reverser operates. When the thrust reversers are fully deployed, on the MCDU, the continu TEST page comes into view. On the upper ECAM DU, the REV indication on the N1 indicator of the engine 1(2) becomes green. NOTE: If after a period of 10 seconds, the thrust reverser is not fully deployed, the TEST FAILURE page comes into view.
9.Move the throttle control lever to the forward idle position in less than 50 seconds.	On the MCDU, the TEST IN PROGRESS page comes into view until the thrust reversers are fully stowed and locked or until a period of 25 seconds. On the upper ECAM DU, the REV indication on the N1 indicator of the engine 1(2) is amber when the thrust reverser operates. When the thrust reversers are fully stowed and locked, on the MCDU, the TEST OK page comes into view if no fault is found. On the upper ECAM DU, the REV indication on the N1 indicator of the engine 1(2) disappears when the thrust reversers are fully stowed. NOTE: If after a period of 25 seconds the thrust reverser is not fully stowed and locked, the TEST FAILURE page comes into view.
10.If the bleeding of the thrust reverser system is not necessary, go to the step that follows. If the bleeding of the thrust reverser system is necessary: Push the line key adjacent to the NEW CYCLING TEST indication. Do again steps 6 and 9 to operate the system up to ten times. NOTE: Do up to ten deploy-stow cycles or until smooth operation is observed.	The INITIAL CONDITION page 2 comes into view.
11.Push the line key adjacent to the RETURN indication.	The THRUST REVERSER CYCLING TEST CLOSE UP page comes into view.
12.Push the line key adjacent to the RETURN indication until you get the CFDS menu.	The CFDS menu comes into view.
13.Push the MCDU MENU key.	The MCDU menu comes into view.

(1) Make a record of any fault messages that you see on the MCDU screen.

NOTE: The table below shows maintenance and ECAM messages which may occasionally be set for reasons which are not necessary for the normal corrective action. The recommended actions for these messages must be done to prevent delays because of corrective actions that are incorrect or not necessary.

Table 501 - Nuisance Fault - Interactive Mode

Software Effectivity	Maintenance Message	ECAM Message	Nuisance Cause	Recommended Action
All software versions:	00000 Failure Detected	-	This message is set when no faults are present during interactive tests	No action required. Ignore this message.
All software versions:	(None Displayed)	ENGX FUEL FILTER DEGRAD	This message is set during interactive mode engine tests when it is not supposed to be set.	No action required. Ignore this message in interactive mode.
All software versions:	(None Displayed)	ENGX OIL FILTER DEGRAD	This message is set during interactive mode engine tests when it is not supposed to be set.	No action required. Ignore this message in interactive mode.

5. Close-up
Subtask 78-31-00-864-056-A ** ON A/C NOT FOR ALL

A. Depressurization of the Aircraft Hydraulic Systems
(1) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(a) Depressurize the Green and Yellow hydraulic systems (Ref. AMM TASK 29-23-00-864-001).
(2) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(a) Depressurize the auxiliary Yellow hydraulic-system (Ref. AMM TASK 29-24-00-864-001).

Subtask 78-31-00-860-080-A ** ON A/C NOT FOR ALL

B. Put the aircraft back to its initial configuration.
(1) On the ENG section of maintenance panel 50VU:

Push the FADEC GND PWR/1(2) pushbutton switch. On the pushbutton switch, the ON legend goes off.
Push the HYD/LEAK MESUREMENT VALVES/B/G/Y pushbutton switch. On the pushbutton switch the OFF legend goes off.

(2) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).

Subtask 78-31-00-862-059-A ** ON A/C NOT FOR ALL

C. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 78-31-00-840-060-A ** ON A/C NOT FOR ALL

D. Remove the WARNING NOTICE(S) from the cockpit.

[Rev.10 from 2021] 2026.04.01 03:30:57 UTC