Deactivation of the Elevator Aileron Computer

TASK 27-93-00-040-001-A
Deactivation of the Elevator Aileron Computer

ZONE: 210
FIN: 2CE1
FIN: 2CE2

1. Reason for the Job
MMEL 27-93-01A
ELAC 1
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
822

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 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
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 27-93-00-861-051-A

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

Subtask 27-93-00-010-051-A

B. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position at the access door 822.
(2) Open the access door 822.
(3) On the battery power center 105VU:

loosen the two screws and remove the protective cover.

Subtask 27-93-00-865-051-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	NAV PROBES/ADIRU3/PWR/SWTG	8FP	F09
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B11
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B10
49VU	FLIGHT CONTROLS/THS/ACTR/MOT2	19CE2	B09
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
49VU	AUTO FLT/FAC1/26VAC	14CC1	B03
** ON A/C ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
49VU	NAV PROBES/ADIRU 1/AND AOA 1/26VAC	5FP1	F07
49VU	NAV PROBES/ADIRU1/115VAC	4FP1	F06
** ON A/C NOT FOR ALL
49VU	NAV PROBES/ADIRU3/PWR/SWTG	8FP	F08
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B06
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B05
49VU	FLIGHT CONTROLS/THS/ACTR/MOT2	19CE2	B04
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
49VU	AUTO FLT/FAC1/26VAC	14CC1	H09
** ON A/C ALL
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
105VU	ADIRS/ADIRU1/28VDC	6FP1	C02
105VU	ELEC/HOT BUS/702PP SPLY	5PB2	D02
105VU	ELEC/HOT BUS/701PP SPLY	5PB1	D01
105VU	ELEC/HOT BUS/702PP SPLY	12PB2	E02
105VU	ELEC/HOT BUS/701PP SPLY	12PB1	E01
** ON A/C NOT FOR ALL
121VU	ADIRS/ADIRU/2PWR/SHED	10FP	N10
** ON A/C ALL
121VU	COM NAV/RAD ALTM/2	1SA2	K12
121VU	COM NAV/RAD ALTM/1	1SA1	K11
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19
121VU	AUTO FLT/FAC2/26VAC	14CC2	M18
121VU	ADIRS/ADIRU/3PWR/SWTG	9FP	N09
121VU	ADIRS/ADIRU/2/26VAC AND AOA	5FP2	N08
121VU	ADIRS/ADIRU/3/26VAC AND AOA	5FP3	N07
121VU	ADIRS/ADIRU/2/115VAC	4FP2	N06
121VU	ADIRS/ADIRU/3/115VAC	4FP3	N05
121VU	ADIRS/ADIRU/2/28VDC	6FP2	N04
121VU	ADIRS/ADIRU/3/28VDC	6FP3	N03
121VU	FLIGHT CONTROLS/WTB/FLP/SYS2	12CV	P20
121VU	FLIGHT CONTROLS/WTB/SLT/SYS2	11CV	P19
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
121VU	FLIGHT CONTROLS/THS ACTR/MOT3	19CE3	Q17
121VU	FLIGHT CONTROLS/THS ACTR/MOT1	19CE1	Q16
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20
** ON A/C NOT FOR ALL
121VU	ADIRS/2PWR/SHED &/AOA2 MON	10FP	N10
** ON A/C ALL
122VU	FLIGHT CONTROLS/WTB/FLP/SYS1	10CV	S07
122VU	FLIGHT CONTROLS/WTB/SLT/SYS1	9CV	S06

4. Procedure
Subtask 27-93-00-040-050-A

A. If the ELAC 1 FAULT warning is in view on the upper ECAM display unit:
(1) On the overhead panel 23VU, make sure that:

the FAULT legend of the FLT CTL/ELAC 1 pushbutton switch is on.

(2) On the overhead panel 23VU, release the FLT CTL/ELAC 1 pushbutton switch (on this pushbutton switch, the OFF legend comes on).
(3) On the overhead panel 24VU, make sure that:

the FLT CTL/ELAC 2 pushbutton switch is pushed (on this pushbutton switch, the OFF and FAULT legends are off).

(4) Do the test paragraph C. only.

Subtask 27-93-00-040-051-A

B. If the ELAC 1 PITCH FAULT warning is in view on the upper ECAM display unit:
(1) Do the tests paragraphs C. and D.

Subtask 27-93-00-710-051-C

C. For the ELAC 1 FAULT or ELAC 1 PITCH FAULT warning:
(1) Do this test before each flight:

ACTION	RESULT
1.On the center pedestal, on one MCDU, push the MCDU MENU mode key.	The MCDU shows the MDCU MENU page.
2.Push the line key adjacent to the CFDS indication.	The MCDU shows the CFDS MENU page.
3.Push the line key adjacent to the SYSTEM REPORT/TEST indication.	The MCDU shows the SYSTEM REPORT/TEST page.
4.Push the line key adjacent to the F/CTL indication.	The MCDU shows the F/CTL page.
5.Push the line key adjacent to the EFCS1 indication.	The MCDU shows the EFCS1 page.
6.Push the line key adjacent to the GROUND SCAN indication.	The MCDU shows the EFCS1 GROUND SCAN page.
7.Push the line key adjacent to the START GROUND SCAN indication.
8.After two minutes, push the line key adjacent to the GROUND SCAN STOP indication.
9.Push the line key adjacent to the GROUND REPORT indication.	Make sure that none of the following CFDS fault messages are present: CFDS fault messages concerning accelerometers 3 (12CE3) and 4 (12CE4) and sidestick: ELAC2 MON OR WIRING FROM ACCLRM3 12CE3, ELAC2 COM OR WIRING FROM ACCLRM3 12CE3, ACCLRM3 12CE3, SEC2 OR WIRING FROM ACCLRM3 12CE3, ELAC2 MON OR WIRING FROM ACCLRM4 12CE4, ELAC2 COM OR WIRING FROM ACCLRM4 12CE4, ACCLRM4 12CE4, SEC2 OR WIRING FROM ACCLRM4 12CE4, ELAC2 OR INPUT OF CAPT ROLL CTL SSTU 4CE1, ELAC2 OR INPUT OF F/O ROLL CTL SSTU 4CE2, ELAC2 OR INPUT OF CAPT PITCH CTL SSTU 4CE3, ELAC2 OR INPUT OF F/O PITCH CTL SSTU 4CE4, SEC1(2)(3) OR INPUT OF CAPT ROLL CTL SSTU 4CE1, SEC1(2)(3) OR INPUT OF F/O ROLL CTL SSTU 4CE2, SEC1(2) OR INPUT OF CAPT PITCH CTL SSTU 4CE3, SEC1(2) OR INPUT OF F/O PITCH CTL SSTU 4CE4, CAPT ROLL CTL SSTU 4CE1, F/O ROLL CTL SSTU 4CE2, CAPT PITCH CTL SSTU 4CE3, F/O PITCH CTL SSTU 4CE4.
	CFDS fault messages concerning SEC1 or SEC2 pitch changeover logic or to SEC2 pitch control failure: CHECK PITCH CHANGE OVER OF SEC1, CHECK PITCH CHANGE OVER OF SEC2, SEC2 OR WIRING FROM L G ELEV POS XCDR 34CE1, SEC2 OR WIRING FROM R Y ELEV POS XCDR 34CE2, SEC2 OR WIRING FROM L ELEV POS MON XCDR, SEC2 OR WIRING FROM R ELEV POS MON XCDR, SEC2 COM OR WIRING TO L G ELEV SERVO VLV 34CE1, SEC2 COM OR WIRING TO R Y ELEV SERVO VLV 34CE2, SEC2 MON OR WIRING TO L G ELEV SERVO VLV 34CE1, SEC2 MON OR WIRING TO R Y ELEV SERVO VLV 34CE2, SEC2 OR WIRING FROM L B ELEV MODE XCDR 34CE3, SEC2 OR WIRING FROM R B ELEV MODE XCDR 34CE4, SEC2 MON OR WIRING TO L B ELEV SOL VLV 34CE3, SEC2 MON OR WIRING TO R B ELEV SOL VLV 34CE4.
10.On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.	The MCDU shows the MCDU MENU page.

Subtask 27-93-00-710-052-A

D. For the ELAC 1 PITCH FAULT warning:
(1) Do this test:

ACTION	RESULT
1.On the overhead panel 23VU: release the FLT CTL/SEC 1 pushbutton switch.	On the overhead panel 23VU: the OFF legend of the FLT CTL/SEC 1 pushbutton switch comes on.
2.On the overhead panel 24VU: release the FLT CTL/SEC 2 pushbutton switch release the FLT CTL/ELAC 2 pushbutton switch.	On the overhead panel 24VU: the OFF legend of the FLT CTL/SEC 2 pushbutton switch comes on. the OFF legend of the FLT CTL/ELAC 2 pushbutton switch comes on.
3.Pressurize the Green and Yellow hydraulic systems (Ref. AMM TASK 29-23-00-863-001) (Ref. AMM TASK 29-24-00-863-001).
4.On the panel 114VU: make sure that the FLAPS control lever is in the 0 position.
5.On the center pedestal: move the THS with the pitch-trim control wheels out of the neutral position.	The THS moves out of the neutral position.
6.On the overhead panel 24VU: push the FLT CTL/SEC 2 pushbutton switch.	On the overhead panel 24VU: the OFF legend of the FLT CTL/SEC 2 pushbutton switch goes off.
	The THS must return to the neutral position (electric motor 3 in operation).

5. Close-up
Subtask 27-93-00-860-050-A

A. Put the aircraft back to its initial configuration.
(1) For the ELAC 1 FAULT warning :
(a) Put a WARNING NOTICE(S) on the FLT CTL/ELAC 1 pushbutton switch, to tell the crew that the ELAC 1 is deactivated.
(b) Open the circuit breakers 15CE1 and 16CE1.
(c) Make an entry in the log-book.
(2) For the ELAC 1 PITCH FAULT warning :
(a) On the overhead panel 23VU, push the FLT CTL/SEC 1 pushbutton switch (on this pushbutton switch, the OFF legend goes off).
(b) On the overhead panel 24VU, push the FLT CTL/ELAC 2 pushbutton switch (on this pushbutton switch, the OFF legend goes off).
(c) Depressurize the Green and Yellow hydraulic systems (Ref. AMM TASK 29-23-00-864-001) (Ref. AMM TASK 29-24-00-864-001).

Subtask 27-93-00-862-051-A

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

Subtask 27-93-00-410-051-A

C. Close Access
(1) Install the protective cover on the battery power center 105VU.
(2) Tighten the two screws.
(3) Close the access door 822.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:59:24 UTC