Operational Test of the Thrust Reverser System with the CFDS [IAE]

TASK 78-31-00-710-041-A
Operational Test of the Thrust Reverser System with the CFDS

WARNING: MAKE SURE THAT:

THE TRAVEL RANGES OF THE THRUST REVERSERS OF ENGINE 1 (2) ARE CLEAR OF ALL TOOLS, EQUIPMENT AND PERSONS
THE THRUST REVERSER COWLS ARE CLOSED AND LATCHED
THE THROTTLE CONTROL LEVER OF ENGINE 1 (2) IS IN THE IDLE POSITION (ZERO ON THE SCALE).

IF YOU DO NOT OBEY THESE PRECAUTIONS, INJURY TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.

1. Reason for the Job
Use this test to do a check of the thrust reverser system operation.
2. Job Set-up Information
A. 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 78-32-00-860-011-A	Manual Retraction of the Thrust Reverser Translating Sleeves
Thrust Reverser Test
FOR [1000EM1] (ENGINE-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 [1000EM2] (ENGINE-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 78-31-00-861-054-A ** ON A/C NOT FOR ALL

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

Subtask 78-31-00-860-063-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (upper and lower ECAM display unit only) (Ref. AMM TASK 31-60-00-860-001).
(2) On the lower display unit of the ECAM system, get the HYD page. Make sure that the Green (Yellow) pressure is zero.

Subtask 78-31-00-865-058-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
FOR FIN: 1000EM1 (ENGINE1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
121VU	ENGINE/IGN/ENG1/SYS B	3JH1	P41
121VU	ENGINE/IGN/ENG1/SYS A BAT	2JH1	P39
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
FOR FIN: 1000EM2 (ENGINE2)
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
121VU	ENGINE/IGN/ENG2/SYS B	3JH2	P42
121VU	ENGINE/IGN/ENG2/SYS A BAT	2JH2	P40
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40

Subtask 78-31-00-863-052-B ** ON A/C NOT FOR ALL

D. Pressurize the aircraft hydraulic systems
(1) Pressurize hydraulic system:
(a) FOR [1000EM1] (ENGINE-1)
Pressurize the Green hydraulic system with the Yellow hydraulic system through the PTU (Ref. AMM TASK 29-23-00-863-001).
On the lower display unit of the ECAM system:

Make sure that the HYD page shows that the pressure of the Green system is 3000 psi (206.84 bar) approximately.

NOTE: The PTU pressurizes the system to a nominal pressure of 3000 psi (206.84 bar), but if no consumers are operated the pressure is not constant. The PTU operates in a cycle which keeps the pressure in the green hydraulic system between 2100 psi (144.79 bar) to 3150 psi (217.18 bar).

(b) FOR [1000EM2] (ENGINE-2)
Pressurize the auxiliary Yellow hydraulic system (Ref. AMM TASK 29-24-00-863-001).
On the lower display unit of the ECAM system:

Make sure that the HYD page shows that the pressure of the Yellow system is 3000 psi (206. bar) approximately.

NOTE: On the lower DU of the ECAM, make sure that the yellow hydraulic system has a pressure of approximately 3000 psi (206.84 bar). If the ECAM system is not available, you can check the pressure. The pressure must be between 2900 psi (199.95 bar) and 3100 psi (213.74 bar) on the yellow power accumulator (3070GM).

(2) On the maintenance panel 50VU:

release the FADEC GND PWR 1 (2) pushbutton switch (on the pushbutton switch, the ON legend is on).

(3) On the FLT CTL panel 23VU:

make sure that the SEC1 pushbutton switch is on (on the pushbutton switch the OFF legend is off).

Subtask 78-31-00-710-063-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 78-31-00-710-064-B ** 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
1.Push the line key adjacent to the ENG indication	The ENG menu comes into view.
2.Push the line key adjacent to the FADEC 1A(2A) indication	The FADEC 1A(2A) menu comes into view. The EGT and FF indications go out of view.
3.Push the line key adjacent to the SYSTEM TEST indication	The SYSTEM TEST menu comes into view.
	Thrust Reverser Test ** ON A/C NOT FOR ALL
4.Push the line key adjacent to the REVERSER TEST indication	The REVERSER TEST menu comes into view.
	Thrust Reverser Test ** ON A/C NOT FOR ALL
5.Push the line key adjacent to the PRESS TO START TEST indication.	Thrust Reverser Test ** ON A/C NOT FOR ALL
6.Push the line key adjacent to the PRESS TO ACTIVATE TEST * indication.
7.Within 15 seconds, put the throttle control lever in the IDLE REVERSE position.	Do a visual check to make sure that the thrust reversers of the engine 1 (2) operate. The thrust reverser must be fully deployed in less than 3 seconds. On the upper ECAM display unit: The REV indication in the EPR indicator of the engine 1(2) must be amber when the thrust reversers operate. The REV indication must become green when the thrust reversers are fully deployed. NOTE: you must do the instruction given on the MCDU in the time specified (15 seconds) if not the test will stop.
8.Put the throttle control lever in the IDLE position (zero on the scale).	Do a Visual check to make sure that the thrust reversers of the engine 1 (2) stow. The thrust reverser must be fully stowed in less than 5 seconds. On the upper ECAM display unit: The REV indication in the EPR indicator of the engine 1(2) must be amber when the thrust reversers operate. The REV indication goes out of view when the thrust reversers are fully stowed and locked. NOTE: If you do not fully do the test in the minute that follows the test activation, the EEC will stop the test. The thrust reversers can then be in the intermediate position. In this case try again to stow the thrust reversers through MCDU test mode menu. If you cannot, stow the thrust reversers manually (Ref. AMM TASK 78-32-00-860-011).
9.Push the line key adjacent to the RETURN indication until you get the CFDS menu.	The CFDS menu comes into view.
10.Push the MCDU MENU key.	The MCDU menu comes into view.

5. Close-up
Subtask 78-31-00-864-052-B ** ON A/C NOT FOR ALL

A. Depressurize the aircraft hydraulic systems
(1) FOR [1000EM1] (ENGINE-1)
Depressurize the Green and Yellow hydraulic systems (Ref. AMM TASK 29-23-00-864-001).
(2) FOR [1000EM2] (ENGINE-2)
Depressurize the auxiliary Yellow hydraulic system (Ref. AMM TASK 29-24-00-864-001).
(3) On the maintenance panel 50VU:

push the FADEC GND PWR 1 (2) pushbutton switch. On the pushbutton switch, the ON legend goes off.

Subtask 78-31-00-869-055-A ** ON A/C NOT FOR ALL

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

Subtask 78-31-00-862-054-A ** ON A/C NOT FOR ALL

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

[Rev.10 from 2021] 2026.04.01 03:27:29 UTC