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
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
| No specific | AR | ACCESS PLATFORM 2M (6 FT) — ADJUSTABLE |
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 |
| Ref. 24-41-00-861-002-A | Energize the Aircraft Electrical Circuits from the External Power |
| Ref. 24-41-00-861-002-A01 | Energize the Aircraft Electrical Circuits from the APU |
| Ref. 24-41-00-861-002-A02 | Energize the Aircraft Electrical Circuits from Engine 1(2) |
| Ref. 24-41-00-862-002-A | De-energize the Aircraft Electrical Circuits Supplied from the External Power |
| Ref. 24-41-00-862-002-A01 | De-energize the Aircraft Electrical Circuits Supplied from the APU |
| Ref. 24-41-00-862-002-A02 | De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2) |
| Ref. 31-32-00-860-006-A | Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page |
| Ref. 34-10-00-860-004-A | Inertial Reference (IR) Alignment-Procedure |
| Ref. 34-10-00-860-004-A02 | Inertial Reference (IR) Alignment-Procedure to do a Check of the Links between each Flight Management and Guidance Computer (FMGC) and the three Air Data/Inertial Reference Units (ADIRUs) |
| Ref. 34-10-00-860-005-A | ADIRS Stop Procedure |
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).
