BITE Test of the VOR/MKR

TASK 34-55-00-740-002-A
BITE Test of the VOR/MKR

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-Frequency and Course Selection ** ON A/C NOT FOR ALL
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 34-55-00-860-054-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 ADIRS Start procedure (Ref. AMM TASK 34-10-00-860-002)
(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 ADF/VOR selector switches to VOR
set the mode selector switches to ROSE/VOR.
push the ILS pushbutton switches.

(5) On the center pedestal, on one MCDU:

get the SYSTEM REPORT/TEST/NAV page (Ref. AMM TASK 31-32-00-860-010).
push the NEXT PAGE function key.

(6) On the center pedestal, on the RMP1 (RMP2):

set the ON/OFF switch to ON
push the NAV and VOR pushbutton switches (the green LED on these pushbutton switches comes on)
set the non local VOR1 and VOR2 stations and a course of 190°.
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL

Subtask 34-55-00-860-054-C ** 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 ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002).
(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 ADF/VOR selector switches to VOR
set the mode selector switches to ROSE/VOR.
push the ILS pushbutton switches.

(5) On the center pedestal, on one MCDU:

get the SYSTEM REPORT/TEST/NAV page (Ref. AMM TASK 31-32-00-860-010)
push the NEXT PAGE function key.

(6) On the center pedestal, on the RMP1 (RMP2):

set the ON/OFF switch to ON
push the NAV and VOR pushbutton switches (the green LED on these pushbutton switches comes on)
set the non local VOR1 and VOR2 stations and a course of 190°
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL
VOR-Frequency and Course Selection ** ON A/C NOT FOR ALL

(7) On the VOR/ADF/DME RMI :

set the VOR/ADF selector switches to VOR.

Subtask 34-55-00-865-054-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/VOR/1	2RS1	G13
121VU	COM NAV/VOR/2	2RS2	K08

4. Procedure

NOTE: This test is for the system 1. For the other system(s), use the indications between the parentheses.

Subtask 34-55-00-750-050-A

A. Preparation for BITE Test

ACTION	RESULT
Open, safety and tag the circuit breaker 2RS2 before you start the BITE test of VOR1.	During all the BITE test, the "VOR 2" indication is flagged in red on the CAP and F/O NDs.
Open, safety and tag the circuit breaker 2RS1 before you start the BITE test of VOR2.	During all the BITE test, the "VOR 1" indication is flagged in red on the CAP and F/O NDs.

Subtask 34-55-00-740-051-N ** ON A/C NOT FOR ALL

B. BITE Test of the VOR/MARKER

ACTION	RESULT
1.On the MCDU:	On the MCDU:
push the line key adjacent to the VOR1 (VOR2) indication.	the VOR1 (VOR2) page comes into view.
push the line key adjacent to the TEST indication.	the INITIAL CONDITIONS are shown (pages 1 to 3).
push the line key adjacent to the START TEST indication.	the TEST IN PROGRESS 11 S indication comes into view
	On the CAPT and F/O PFDs (for the VOR1 test only): the OM indication comes into view until the end of the test.
	From 0 to 3s: on the CAPT and F/O NDs: . the VOR1 (VOR2) warning flags come into view. on the VOR/ADF/DME RMI: . the VOR1 (VOR2) warning flag comes into view.
	From 3 to 6s: on the CAPT and F/O NDs: . the VOR1 (VOR2) pointer is not shown. on the VOR/ADF/DME RMI: . the VOR pointers stay at the last valid position. NOTE: Disregard MCDU display test result.
	From 6 to 11s: on the CAPT and F/O NDs: . the VOR1 (VOR2) pointer comes into view and shows 180 deg. on the VOR/ADF/DME RMI: . the VOR1 (VOR2) pointer shows 180 deg. on the CAPT and F/O PFDs (for the VOR1 test only): . the OM indication is shown.
push the line key adjacent to the YES indication (for the VOR1 test only).	On the MCDU: the MARKER AURAL TONE OK indication comes into view (for the VOR1 test only).
push the line key adjacent to the YES indication.	the TEST OK indication comes into view.
push the line key adjacent to the RETURN indication.	The test procedure stops.

Subtask 34-55-00-740-051-R ** ON A/C NOT FOR ALL

B. BITE Test of the VOR/MARKER

ACTION	RESULT
1.On the MCDU:	On the MCDU:
push the line key adjacent to the VOR1 (VOR2) indication.	the VOR1 (VOR2) page comes into view.
push the line key adjacent to the TEST indication.	the INITIAL CONDITIONS are shown (pages 1 to 3). 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 11 S indication comes into view
	On the CAPT and F/O PFDs (for the VOR1 test only): the OM indication comes into view until the end of the test.
	From 0 to 3 S: on the CAPT and F/O NDs: . the VOR1 (VOR2) warning flags come into view.
	From 3 to 6 s: on the CAPT and F/O NDs: . the VOR1 (VOR2) pointer is not shown.
	From 6 to 11 s: on the CAPT and F/O NDs: . the VOR1 (VOR2) pointer comes into view and shows 180 deg. on the CAPT and F/O PFDs (for the VOR1 test only): . the OM indication is shown.
push the line key adjacent to the YES indication (for the VOR1 test only).	On the MCDU: the MARKER AURAL TONE OK indication comes into view (for the VOR1 test only).
push the line key adjacent to the YES indication.	the TEST OK indication comes into view.
push the line key adjacent to the RETURN indication.	The test procedure stops.

Subtask 34-55-00-740-051-T ** ON A/C NOT FOR ALL

B. BITE Test of the VOR/MARKER

ACTION	RESULT
1.On the MCDU:	On the MCDU:
push the line key adjacent to the VOR1 (VOR2) indication.	the VOR1 (VOR2) page comes into view.
push the line key adjacent to the TEST indication.	the INITIAL CONDITIONS are shown (pages 1 to 3).
push the line key adjacent to the START TEST indication.	the TEST IN PROGRESS 11 S indication comes into view
	On the CAPT and F/O PFDs (for the VOR1 test only): the OM indication comes into view until the end of the test.
	From 0 to 3 S: on the CAPT and F/O NDs: . the VOR1 (VOR2) warning flags come into view. on the VOR/ADF/DME RMI: . the VOR1 (VOR2) warning flag comes into view.
	From 3 to 6 s: on the CAPT and F/O NDs: . the VOR1 (VOR2) pointer is not shown. on the VOR/ADF/DME RMI: . the VOR pointers stay in the 3 o'clock position.
	From 6 to 11 s: on the CAPT and F/O NDs: . the VOR1 (VOR2) pointer comes into view and shows 180 deg. on the VOR/ADF/DME RMI: . the VOR1 (VOR2) pointer shows 180 deg. on the CAPT and F/O PFDs (for the VOR1 test only): . the OM indication is shown.
push the line key adjacent to the YES indication (for the VOR1 test only).	On the MCDU: the MARKER AURAL TONE OK indication comes into view (for the VOR1 test only).
push the line key adjacent to the YES indication.	the TEST OK indication comes into view.
push the line key adjacent to the RETURN indication.	The test procedure stops.

5. Close-up
Subtask 34-55-00-860-055-A

A. Put the aircraft back to its initial configuration.
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2) On the EFIS control sections of the FCU:

set the ADF/VOR selector switches to OFF.
release the ILS pushbutton switches.

(3) Do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
(4) On the center pedestal, on the RMP:

push the NAV and VOR pushbutton switches (the green LED on these pushbutton switches goes off).
set the ON/OFF switch to OFF.

(5) Close the circuit breaker(s) 2RS1 and 2RS2.
(6) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002)
(7) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.02 06:23:34 UTC