BITE Check Using MCDU to Ensure "Gear NOT DOWN for Landing" Warnings Operative

TASK 32-61-00-710-001-A
BITE Check Using MCDU to Ensure "Gear NOT DOWN for Landing" Warnings Operative

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

ZONE: 210

1. Reason for the Job
Refer to the MPD TASK: 323100-06
BITE CHECK USING MCDU TO ENSURE "GEAR NOT DOWN FOR LANDING" WARNINGS OPERATIVE
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
210	CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD

C. 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 27-50-00-866-008-A	Extension of the Flaps on the Ground
TASK 27-50-00-866-008-A-01	Extension of the Flaps/Slats on the Ground
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
TASK 31-32-00-860-009-A	Procedure to Get Access to the SYSTEM REPORT/TEST/L/G Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-00-00-860-001-A	Flight Configuration Precautions with Electrical Power
TASK 32-00-00-860-001-A-01	Flight Configuration Precautions without Electrical Power
TASK 32-00-00-860-002-A	Ground Configuration after Flight Configuration with Electrical Power
TASK 32-00-00-860-002-A-01	Ground Configuration after Flight Configuration without Electrical Power

3. Job Set-up
Subtask 32-61-00-941-051-A

A. Safety Precautions
(1) Put the SAFETY BARRIER(S) in position.
(2) Make sure that the ground safety locks are on the landing gear (Ref. AMM TASK 32-00-00-481-001).
(3) On panel 400VU:
(a) Make sure that the landing-gear control-lever is in the DOWN position
(b) Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear.

Subtask 32-61-00-860-050-A

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
(2) Fully extend the flaps (Ref. AMM TASK 27-50-00-866-008).
(3) Do the EIS start procedure (ECAM only) (Ref. AMM TASK 31-60-00-860-001).
(4) On the ECAM control panel (CP), push (in) the WHEEL pushbutton switch (P/BSW). Make sure that the WHEEL page shows on the ECAM lower display unit (DU).

Subtask 32-61-00-869-052-A

C. Flight Configuration Precautions
(1) Do the precautions for flight configuration (Ref. AMM TASK 32-00-00-860-001) before you open the LGCIU circuit breaker.

Subtask 32-61-00-865-052-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
49VU	CAPT/LOUD/SPKR	5WW	F10
49VU	FWS/FWC1/SPLY	3WW	F01
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
** ON A/C ALL
121VU	COM NAV/RAD ALTM/2	1SA2	K12
121VU	COM NAV/RAD ALTM/1	1SA1	K11
121VU	EIS/F/O/LOUD/SPKR	4WW	P08
121VU	EIS/FWC2/SPLY	2WW	Q07
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	R41
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R40

Subtask 32-61-00-865-051-A

E. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32

Subtask 32-61-00-869-050-A

F. Cockpit Configuration
(1) On panel 115VU, make sure that the ENG MASTER 1 and MASTER 2 levers are set to the OFF position.
(2) On panel 50VU, push (in) and release (out) the FADEC GND PWR 1 or 2 P/BSW. Make sure that the applicable P/BSW ON light comes on.
(3) Make sure that the throttle control levers are in the 0 (idle stop) position.
(4) Get access to the L/G page on the MCDU (Ref. AMM TASK 31-32-00-860-009).

4. Procedure
Subtask 32-61-00-710-050-A

A. BITE Check With Use of MCDU to Ensure "Gear NOT DOWN for Landing" Warnings Operative
(1) Do this test:

ACTION	RESULT
1.On the MCDU:	On the MCDU:
Push (in) the LGCIU1 P/BSW	The LGCIU1 menu shows
Push (in) the NEXT PAGE P/BSW	The LGCIU1 Page 2 menu shows
Push (in) the LANDING GEAR SIMULATION P/BSW	The LANDING GEAR SIMULATION page shows
Push (in) the NOSE+LH+RH P/BSW	The NOSE+LH+RH page menu shows
Push (in) the UPLOCKED P/BSW.	The UPLOCKED '<' goes off.
	On the ECAM lower DU: The WHEELS page shows the wheels in the UP position and L/G CTL in amber. NOTE : The amber crosses will stay on screen because the No. 2 LGCIU circuit breaker is open.
	On 402VU:
	- The UNLK (red) indicator lights show.
	On the ECAM upper DU: The L/G GEAR NOT DOWN display comes into view and after 30 seconds, L/G GEAR NOT DOWNLOCKED shows.
	On panels 130VU and 131VU: The MASTER WARN lights flash You can hear the warning chime.
	On the Landing-Gear Normal Control-Lever (6GA): The red DOWN arrow light comes on.
2.On the ECAM CP:
Push (in) the EMER CANC P/BSW.	The warning chime stops.
	On the panels 130VU and 131VU: The MASTER WARN lights go off.
	On 402VU:
	- The UNLK (red) indicator lights stay on.
3.On the MCDU:	On the ECAM upper DU:
Push (in) the DOWNLOCKED P/BSW.	The L/G GEAR NOT DOWN and L/G GEAR NOT DOWNLOCKED display goes out of view
	- The UNLK (red) indicator lights go out and the LKD (green) indicator lights come on.
	On the Landing-Gear Normal Control-Lever (6GA): The red DOWN arrow light goes off.
	On the ECAM lower DU: The WHEELS page shows the wheels in the DOWN position. NOTE : The amber crosses will stay on screen because the No 2 LGCIU circuit breaker is open.
4.Push (in) the RETURN P/BSW until the CFDS menu page shows.	The CFDS menu page shows.
5.Push in the MCDU MENU P/BSW.

5. Close-up
Subtask 32-61-00-865-050-A

A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
** ON A/C ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32

Subtask 32-61-00-860-051-A

B. Aircraft Maintenance Configuration
(1) Put the aircraft back to the ground configuration (Ref. AMM TASK 32-00-00-860-002).
(2) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).
(3) Cockpit Configuration:
(a) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
(b) On panel 50VU:
1 Push (in) the FADEC GND PWR 1 or 2 P/BSW. Make sure that the applicable P/BSW ON light goes off.
(4) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 32-61-00-942-051-A

C. Removal of Equipment
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the SAFETY BARRIER(S).
(3) Remove the WARNING NOTICE(S).
(4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.10 from 2021] 2026.04.01 00:52:06 UTC