Simulation of Flight with False Targets (With Aircraft on Ground)

TASK 32-69-00-860-802-A
Simulation of Flight with False Targets (With Aircraft on Ground)

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.

1. Reason for the Job
To simulate the landing gear system in the flight configuration with false targets, aircraft weight on wheels.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
98F32304000000	8	TARGET-FALSE

B. Referenced Information

REFERENCE	DESIGNATION
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 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 32-00-00-481-001-A	Installation of the Safety Devices on the Landing Gears
TASK 32-00-00-481-002-A	Installation of the Safety Devices on the Landing Gear Doors
TASK 32-00-00-860-001-A-01	Flight Configuration Precautions without Electrical Power
TASK 32-00-00-860-002-A-01	Ground Configuration after Flight Configuration without Electrical Power
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-22-00-010-001-A	Nose Gear Doors - Ground Doors Opening

3. Job Set-up
Subtask 32-69-00-941-054-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(2) On panel 110VU:

Make sure that the GRAVITY GEAR EXTN handle is in the fully counterclockwise position
Fold the GRAVITY GEAR EXTN handle into the center console
Put a WARNING NOTICE(S) on the GRAVITY GEAR EXTN handle to tell persons not to operate the landing gear.

(3) On panel 400VU:

Make sure that the landing-gear control-lever 6GA is in the DOWN position
Put a WARNING NOTICE(S) in position to tell persons not to operate the landing gear.

(4) Put a WARNING NOTICE(S) on the ground service connections to tell persons not to pressurize the Yellow, Green, and Blue hydraulic systems.
(5) Make sure that the ground safety locks are on the landing gears (Ref. AMM TASK 32-00-00-481-001).

Subtask 32-69-00-865-062-A ** ON A/C NOT FOR ALL

B. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	L/G/LGCIU/SYS1/NORM	1GA	C09
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R33
121VU	LGCIU/BAT SPLY/SYS1	58GA	R32
** ON A/C NOT FOR ALL
121VU	HYDRAULIC/LGCIU/SYS2	2GA	Q35
121VU	HYDRAULIC/LGCIU/SYS1/GRND SPLY	52GA	Q34
** ON A/C NOT FOR ALL
121VU	LGCIU/BAT SPLY/SYS2	59GA	R32
121VU	LGCIU/BAT SPLY/SYS1	58GA	R31

Subtask 32-69-00-860-061-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Depressurize the Green, Yellow and Blue hydraulic systems (Ref. AMM TASK 29-10-00-864-001), (Ref. AMM TASK 29-10-00-864-002) and (Ref. AMM TASK 29-10-00-864-003).
(2) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 32-69-00-010-052-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the landing gear doors (Ref. AMM TASK 32-22-00-010-001) and (Ref. AMM TASK 32-12-00-010-001).
(2) Install the safety devices on the landing gear doors (Ref. AMM TASK 32-00-00-481-002).

Subtask 32-69-00-869-058-A ** ON A/C NOT FOR ALL

E. Flight Configuration Precautions
(1) Do the flight configuration precautions procedure without electrical power (Ref. AMM TASK 32-00-00-860-001).

Subtask 32-69-00-860-062-A ** ON A/C NOT FOR ALL

F. Aircraft Maintenance Configuration

NOTE: If you do this task with the ground power set to 'ON' on the overhead panel, the systems that follow will receive an 'on ground' signal. This will occur with the false targets installed as the LGCIU's receive a signal from the ground power:

Captain PHC1
First Officer PHC2
Stand-by PHC3
CIDS
EIU1 and EIU2
CFDS
WHC1 and WHC2
RPCU (if installed)
DLRB (if installed)
SIU (if installed).

4. Procedure
Subtask 32-69-00-869-059-B ** ON A/C NOT FOR ALL

A. Simulation of Flight with False Targets (With Aircraft on Ground)
(1) Do this test:

ACTION	RESULT
1.Open circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.	The LGCIUs are de-energized.
2.Install a 98F32304000000 TARGET-FALSE on each proximity sensors 20GA, 21GA, 22GA, 23GA, 24GA and 25GA.	Flight mode is simulated.
3.Close circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.	The LGCIUs are energized After two minutes, the EFCS shows faults that can occur.
4.Open circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.	The LGCIUs are de-energized.
5.Remove the 98F32304000000 TARGET-FALSE from each proximity sensors 20GA, 21GA, 22GA, 23GA, 24GA and 25GA.	The aircraft goes back to the ground mode.
6.Close circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.

NOTE: When the LGCIU circuit breakers are opened, the fuel used indication shown on the ENG page and the FUEL USED page will change to 'degraded' mode. The fuel used indication will show as dashes. It is necessary to start the engines to show the correct display of the fuel used indication.

Subtask 32-69-00-869-059-D ** ON A/C NOT FOR ALL

A. Simulation of Flight with False Targets (With Aircraft on Ground)
(1) Do this test:

ACTION	RESULT
1.Open circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.	The LGCIUs are de-energized.
2.Install the 98F32304000000 TARGET-FALSE on each proximity sensors 18GA, 19GA, 20GA, 21GA, 22GA, 23GA, 24GA and 25GA.	Flight mode is simulated.
3.Close circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.	The LGCIUs are energized After two minutes, the EFCS shows faults that can occur.
4.Open circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.	The LGCIUs are de-energized.
5.Remove the 98F32304000000 TARGET-FALSE from each proximity sensors 18GA, 19GA, 20GA, 21GA, 22GA, 23GA, 24GA and 25GA.	The aircraft goes back to the ground mode.
6.Close circuit breakers 1GA, 2GA, 52GA, 58GA and 59GA.

5. Close-up
Subtask 32-69-00-860-063-A ** ON A/C NOT FOR ALL

A. Aircraft Configuration
(1) Do the ground configuration after flight configuration without electrical power (Ref. AMM TASK 32-00-00-860-002).

Subtask 32-69-00-942-055-A ** ON A/C NOT FOR ALL

B. 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 00:52:12 UTC