BITE Test of the DME

TASK 34-51-00-740-002-A
BITE Test of the DME

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. 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 34-10-00-860-002-A	ADIRS Start 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
VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-51-00-860-054-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) On the EFIS control sections of the FCU:

set the mode selector switches to ROSE or ARC
set the ADF/VOR selector switches to VOR
push the ILS pushbutton switches.

(3) On the center pedestal, on the RMP1 and RMP2:

set the ON/OFF switches to ON
set a non local frequency of a VOR/DME1 and VOR/DME2.
VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL
VOR/DME - Frequency Selection ** ON A/C NOT FOR ALL

(4) On the center pedestal, on one MCDU, get the SYSTEM REPORT/TEST/NAV page
(Ref. AMM TASK 31-32-00-860-010).
(5) Do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002).
(6) Do the IR alignment procedure
(Ref. AMM TASK 34-10-00-860-004).

Subtask 34-51-00-865-056-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	NAV/VOR/DME/RMI	12FN	F13
** ON A/C ALL
49VU	NAV/DME/1	1SD1	G14
121VU	COM NAV/DME/2	1SD2	K06

4. Procedure
Subtask 34-51-00-740-051-I ** ON A/C NOT FOR ALL

A. BITE Test of the DME

NOTE: The DME and the VOR/DME data come into view on the ND. The ILS/DME data come into view on the PFD.

NOTE: During the BITE TEST (DME1 or 2) by the MCDU, the indications related to the two receivers (CAPT and F/O) are shown at the same time. This has no effect on the test or component operation.

ACTION	RESULT
1.On the MCDU:	On the MCDU:
push the line key adjacent to the DME1 (DME2) indication.	the DME1 (DME2) page comes into view.
push the line key adjacent to the TEST indication.	the INITIAL CONDITIONS are shown (page 1 to 2).
push the line key adjacent to the START TEST indication.	the TEST IN PROGRESS 10s indication comes into view.
	From 0 to 4s: on the CAPT and F/O NDs: . the DME1(DME2) red warning flag comes into view at the bottom and on the left (right) side then it goes out of view. on the VOR/ADF/DME RMI: . the left (right) window is blanked.
	From 4 to 7s: on the VOR/ADF/DME RMI: . the left (right) window shows white horizontal dashes.
	From 7 to 10s: on the VOR/ADF/DME RMI: . the distance of 0.0 comes into view.
push the line key adjacent to the YES indication.	On the MCDU: the TEST OK indication comes into view.
push the line key adjacent to the RETURN indication.	The test procedure stops.

Subtask 34-51-00-740-051-P ** ON A/C NOT FOR ALL

A. BITE Test of the DME

NOTE: The DME and the VOR/DME data come into view on the ND. The ILS/DME data come into view on the PFD.

NOTE: During the BITE TEST (DME1 or 2) by the MCDU, the indications related to the two receivers (CAPT and F/O) are shown at the same time. This has no effect on the test or component operation.

ACTION	RESULT
1.On the MCDU:	On the MCDU:
push the line key adjacent to the DME1 (DME2) indication.	the DME1 (DME2) page comes into view.
push the line key adjacent to the TEST indication.	the INITIAL CONDITIONS are shown (page 1 to 2). NOTE: Ignore all the checks to be done on the DDRMI.
push the line key adjacent to the START TEST indication.	the TEST IN PROGRESS 10s indication comes into view.
	From 0 to 4s: on the CAPT and F/O NDs: . the DME1(DME2) red warning flag comes into view at the bottom and on the left (right) side then it goes out of view.
push the line key adjacent to the YES indication.	On the MCDU: the TEST OK indication comes into view.
push the line key adjacent to the RETURN indication.	The test procedure stops.

5. Close-up
Subtask 34-51-00-860-055-A

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) On the RMP, set the ON/OFF switch to OFF.
(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] 2026.04.02 07:15:37 UTC