BITE Test of the TCAS

TASK 34-43-00-740-001-A
BITE Test of the TCAS

1. Reason for the Job
Self explanatory
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 31-32-00-860-010-A	Procedure to Get Access to the SYSTEM REPORT/TEST NAV Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 34-10-00-860-004-A	Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-01	Automatic Inertial Reference (IR) Alignment-Procedure
TASK 34-10-00-860-004-A-02	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)
TASK 34-10-00-860-005-A	ADIRS Stop Procedure

3. Job Set-up
Subtask 34-43-00-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the EIS start procedure (PFDs and NDs only) (Ref. AMM TASK 31-60-00-860-001).
(3) Do the IR alignment procedure (Ref. AMM TASK 34-10-00-860-004).
(4) On the EFIS control sections of the FCU:

set the mode selector switches to ROSE
set the scale selector switches to 10.

(5) On the center pedestal, if the ATC/TCAS control unit has the ALTITUDE REPORTING function , set the ALT RPTG (or ALT RPT) switch to ON.
(6) Do the procedure to get access to the SYSTEM REPORT/TEST NAV page on one MCDU (Ref. AMM TASK 31-32-00-860-010):

push the NEXT PAGE function key (two times) until the TCAS menu page comes into view.

Subtask 34-43-00-865-143-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM NAV/ATC/1	5SH1	G11
121VU	COM NAV/TCAS	4SG	K10
121VU	COM NAV/ATC/2	5SH2	K07
** ON A/C NOT FOR ALL
121VU	AUDIO MIXING	14WW	K03

4. Procedure
Subtask 34-43-00-740-050-D ** ON A/C NOT FOR ALL

A. BITE Test of the TCAS

NOTE: During the test, obey the instructions shown on the MCDU used.

ACTION	RESULT
On the MCDU:	On the MCDU:
push the line key adjacent to the TEST indication.	the subsequent TCAS TEST page with instructions comes into view.
push the line key adjacent to the START TEST indication.	the TEST IN PROGRESS 8 S indication comes into view. this sequence starts: - in the loudspeakers: * you can hear the TCAS TEST message. - on the CAPT and F/O NDs, these symbols come into view: * a white unfilled diamond with a +10 indication. * a white solid diamond with a down arrow and a - 10 indication. * an amber solid circle with an up arrow and a - 02 indication. * a red solid square with a + 02 indication. - on the CAPT and F/O PFDs: * the V/S scale is divided into three sectors: one green and two red. * the symbols go out of view. * the V/S scale goes back to the normal configuration. - in the loudspeakers: * you can hear the TCAS TEST PASSED message.
	On the MCDU:
push the line key adjacent to the YES indication.	THE SYNTHETIC VOICE WAS GENERATED: indication comes into view.
push the line key adjacent to the PASS indication.	the TEST OK page comes into view after a short period.
push the line key adjacent to the RETURN indication.	the TCAS menu page comes into view.

Subtask 34-43-00-740-050-H ** ON A/C NOT FOR ALL

A. BITE Test of the TCAS

NOTE: During the test, obey the instructions shown on the MCDU used.

ACTION	RESULT
On the MCDU:
Push the line key adjacent to the TEST indication.	On the MCDU, the subsequent TEST page with instructions comes into view. On the CAPT and F/O NDs, these symbols come into view: * A white unfilled diamond with a + 10 indication. * A white solid diamond with a down arrow and a + 02 indication. * An amber solid circle with an up arrow and a - 02 indication. * A red solid square with a - 10 indication. On the CAPT and F/O PFDs: * The V/S scale is divided in three sectors: one green and two red. * On the CAPT and F/O NDs, the symbols go out of view. * Then the V/S scale goes back to the normal configuration. in the loudspeakers: * You can hear the TCAS SYSTEM TEST OK voice. On the MCDU, the TEST OK indication comes into view.

ACTION

RESULT

On the MCDU:

Push the line key adjacent to the TEST indication.

On the MCDU, the subsequent TEST page with instructions comes into view.
On the CAPT and F/O NDs, these symbols come into view:
* A white unfilled diamond with a + 10 indication.
* A white solid diamond with a down arrow and a + 02 indication.
* An amber solid circle with an up arrow and a - 02 indication.
* A red solid square with a - 10 indication.
On the CAPT and F/O PFDs:
* The V/S scale is divided in three sectors: one green and two red.
* On the CAPT and F/O NDs, the symbols go out of view.
* Then the V/S scale goes back to the normal configuration.
in the loudspeakers:
* You can hear the TCAS SYSTEM TEST OK voice.
On the MCDU, the TEST OK indication comes into view.

Subtask 34-43-00-740-050-I ** ON A/C NOT FOR ALL

A. BITE Test of the TCAS

NOTE: During the test, obey the instructions shown on the MCDU used.

ACTION	RESULT
On the MCDU:	On the MCDU:
push the line key adjacent to the TEST indication.	the subsequent TCAS TEST page with instructions comes into view.
push the line key adjacent to the START TEST indication.	the TEST IN PROGRESS 12 S indication comes into view. this sequence starts: - on the CAPT and F/O NDs, these symbols come into view: * a white unfilled diamond with a + 10 indication. * a white solid diamond with a down arrow and a - 10 indication. * an amber solid circle with an up arrow and a - 02 indication. * a red solid square with a + 02 indication. on the CAPT and F/O PFDs: * a sequence of RA advisories (green and red sectors) comes into view on the V/S scale. * at the end of this sequence, the V/S scale goes back to the normal configuration. in the loudspeakers: * you can hear the TCAS SYSTEM TEST OK message.
push the line key adjacent to the TCAS SYSTEM TEST OK indication.	on the MCDU, the TEST OK indication comes into view.
push the line key adjacent to the RETURN indication.	on the MCDU, the TCAS menu page comes into view.

5. Close-up
Subtask 34-43-00-860-051-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
(2) On the center pedestal, on the MCDU, push the line key adjacent to the RETURN indication until the MCDU MENU page comes into view.
(3) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(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.

[Rev.10 from 2021] 2026.04.01 01:01:51 UTC