AMM 27-96-00-740-001-A — Operational Check of EFCS by BITE A320

Operational Check of EFCS by BITE A320

1. Reason for the Job

OPERATIONAL CHECK OF EFCS BY BITE (GROUND SCANNING)

2. Job Set-up Information

3. Job Set-up

SUBTASK 27-96-00-860-087-A

A. Aircraft Maintenance Configuration

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

(2) Do the Inertial Reference (IR) alignment procedure Ref. AMM TASK 34-10-00-860-004.

(3) On the overhead panel, on FLT CTL panel 23VU, make sure that the ELAC 1 and SEC 1 pushbutton switches are pushed (the OFF and FAULT legends are off).

(4) On the overhead panel, on FLT CTL panel 24VU, make sure that the ELAC 2, SEC 2 and SEC 3 pushbutton switches are pushed (the OFF and FAULT legends are off).

(5) On the Multipurpose Control and Display Unit (MCDU), get access to the SYSTEM REPORT/TEST F/CTL page Ref. AMM TASK 31-32-00-860-006.

SUBTASK 27-96-00-010-052-A

B. Get Access

(1) Put the ACCESS PLATFORM 2M (6 FT) — ADJUSTABLE in position below access door 822.

(2) Open access door 822.

(3) Open the access panel of battery power center 105VU.

SUBTASK 27-96-00-865-065-A

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

PANEL	DESIGNATION	FIN	LOCATION
49VU	FLIGHT CONTROLS/ELAC1/NORM/SPLY	15CE1	B11
49VU	FLIGHT CONTROLS/FCDC1/SPLY	20CE1	B10
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
105VU	FLIGHT CONTROLS/ELAC2/STBY SPLY	16CE2	A02
105VU	FLT CTL/ELAC1/STBY SPLY	16CE1	A01
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
121VU	CFDS/CFDIU/SPLY	2TW	J18
121VU	CFDS/CFDIU/BACK/UP	8TW	J17
121VU	FLIGHT CONTROLS/FCDC2/SPLY	20CE2	Q20
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
121VU	FLIGHT CONTROLS/ELAC2/NORM/SPLY	15CE2	R20

4. Procedure

NOTE:   During the test, the ECAM Display Unit (DU) shows a fault of Flight Control Data Concentrators 1 or 2 (FCDC1 or FCDC2) indication. Ignore this indication.

SUBTASK 27-96-00-740-050-C

A. Operational Check of the Electrical Flight Control System (EFCS) with the BITE (Ground Scanning)

ACTION	RESULT
1.On the center pedestal, on the MCDU:-Push the line select key adjacent to the EFCS1(2) indication.	On the center pedestal, on the MCDU:-The EFCS1(2) page comes into view.
2.On the center pedestal, on the MCDU:-Push the line select key adjacent to the GROUND SCAN indication.	On the center pedestal, on the MCDU:-The EFCS1(2)/GROUND SCAN page comes into view.
3.On the center pedestal, on the MCDU:-Push the line select key adjacent to the START GROUND SCAN indication.
4.On the center pedestal, on the MCDU:-After two minutes, push the line select key adjacent to the GROUND SCAN STOP indication.
5.On the center pedestal, on the MCDU:-Push the line select key adjacent to the GROUND REPORT indication.	On the center pedestal, on the MCDU:-NO FAULTS RECORDED comes into view.
6.On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.	On the center pedestal, on the MCDU:-The CFDS menu page comes into view.

5. Close-up

SUBTASK 27-96-00-860-088-A

A. Put the aircraft back to its initial configuration.

(1) On the overhead panel, on the ADIRS Control and Display Unit (CDU), set the three OFF/NAV/ATT selector switches to OFF Ref. AMM TASK 34-10-00-860-005.

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

SUBTASK 27-96-00-410-051-A

B. Close Access

(1) Make sure that the work area is clean and clear of tools and other items.

(2) Close the access panel of battery power center 105VU.

(3) Close access door 822.

(4) Remove the access platform(s).