BITE Test of the Air Traffic Control A320
WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels
| ZONE/ACCESS | ZONE DESCRIPTION |
| 127 | REAR AVIONIC COMPARTMENT |
| 210 | CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD |
| 234 | FWD PASSENGER COMPT OVERHEAD COMPARTMENT |
B. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. 22-70-00-710-002-A | Operational Test of the Initialization of the Flight Plan |
| 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. 31-32-00-860-010-A | Procedure to Get Access to the SYSTEM REPORT/TEST NAV Page |
| Ref. 34-10-00-860-002-A | ADIRS Start Procedure |
| Ref. 34-10-00-860-005-A | ADIRS Stop Procedure |
3. Job Set-up
SUBTASK 34-52-00-860-089-J
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits Ref. AMM TASK 24-41-00-861-002.
(2) Do the ADIRS start procedure Ref. AMM TASK 34-10-00-860-002.
(3) On the center pedestal, on the ATC/TCAS control unit, set:
— the ATC system 1(2) on.
— the SBY/ALT RPTG OFF/XPNDR/TA ONLY/TA-RA switch to XPNDR
(4) Enter a flight plan to get a flight number Ref. AMM TASK 22-70-00-710-002.
NOTE: Use a company route stored in the NAV DATA BASE or enter the flight number «TEST» manually in the MCDU if it is not displayed.
SUBTASK 34-52-00-860-086-A
B. On the center pedestal, on one MCDU, get the SYSTEM REPORT/TEST/NAV page then push the NEXT PAGE function key. Ref. AMM TASK 31-32-00-860-010
SUBTASK 34-52-00-865-055-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
| PANEL | DESIGNATION | FIN | LOCATION |
| 49VU | COM NAV/ATC/1 | 5SH1 | G11 |
| 121VU | COM NAV/ATC/2 | 5SH2 | K07 |
4. Procedure
SUBTASK 34-52-00-740-054-A
A. BITE Test of the ATC
| ACTION | RESULT |
| On the MCDU: | On the MCDU: |
| -on the NAV page, push the line key adjacent to the ATC1 (ATC2) indication. | -the ATC page comes into view. |
| -push the line key adjacent to the TEST indication. | On the ATC/TCAS control unit:-the ATC FAULT or FAIL indicator light comes on during 2 seconds approx. |
| At the end of the test, on the MCDU, the TEST OK indication comes into view. |
5. Close-up
SUBTASK 34-52-00-860-090-A
A. Put the aircraft back to its initial configuration.
(1) On the ATC/TCAS control unit, set the master switch to the standby position.
(2) Do the ADIRS stop procedure Ref. AMM TASK 34-10-00-860-005.
(3) On the center pedestal, on the MCDU, push the line key adjacent to the RETURN indication until the MCDU MENU page comes into view.
(4) De-energize the aircraft electrical circuits Ref. AMM TASK 24-41-00-862-002.
(5) Make sure that the work area is clean and clear of tools and other items.
