Installation of the Lavatory Ds

TASK 25-43-41-400-802-A
Installation of the Lavatory Ds

WARNING: BE CAREFUL WHEN YOU REMOVE OR INSTALL THIS EQUIPMENT. THIS EQUIPMENT IS HEAVY (MORE THAN 12 KG (26.5 lb)) AND CAN CAUSE INJURY AND/OR DAMAGE.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 200
FIN: 5072MM ** ON A/C NOT FOR ALL

1. Reason for the Job
Self Explanatory

NOTE: More than one person is necessary for this procedure.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SCRAPER - NON METALLIC
No specific	AR	TIE WRAP
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.40 and 0.32 m.daN (35.40 and 28.32 lbf.in )
No specific	Torque wrench: range to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
No specific	Torque wrench: range to between 5.90 and 5.40 m.daN (43.51 and 39.82 lbf.ft )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03FAB1)	Mineral Oil base Grease-- Vaseline or Petrolatum -
(Material No.03FBB1)	Mineral Oil base Grease-General Purpose Medium Temp. -
(Material No.03GBB1)	Synthetic Oil base Grease-General Purpose Clay Thickened -
(Material No.06AEA1)	Polysulfide Sealant-Low Adhesion Brushable -
(Material No.06CMD9)	Silicone Adhesive Sealant-General Purpose One part legacy
(Material No.06LCB1)	Non Hardening Jointing Putty-Medium Temp. Area Chromate Free -
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.12ACB1)	Corrosion Preventive Compound-Heavy Duty Hard Film -
(Material No.14QFB1)	Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
8	PACKINGS	AIPC 25-43-55-50-090
6	O-RING	AIPC 38-31-04-02-040
9	O-RING	AIPC 38-31-04-02-040
14	O-RINGS	AIPC 38-31-84-02-030
6	O-RING	AIPC 38-31-84-02-030
9	O-RING	AIPC 38-31-84-02-030

E. Referenced Information

REFERENCE	DESIGNATION
TASK 11-00-00-400-007-A	Installation of the ESSO (Scotchcal Labels)
TASK 12-24-38-680-001-A	Draining of the Potable Water System (with Electrical Power)
TASK 20-11-11-911-001-A	Safetying with Lockwire
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 20-28-00-912-803-A	Bonding Surface Preparation
TASK 21-21-00-710-002-A	Operational Test of the Individual Air Outlet
TASK 21-23-00-720-002-A	Functional Test of an Air Extraction Point
TASK 23-73-00-710-005-A	Operational Test of the Passenger Address (PA) system
TASK 23-73-00-710-007-A	Operational Test of the Passenger Call System
TASK 23-73-00-740-005-B	Interface and Power-Up Test of the Cabin Intercommunication Data System (CIDS) through the CFDS
TASK 23-73-00-861-001-A	Energize the Cabin Intercommunication Data System (CIDS)
TASK 23-73-00-862-001-A	De-energize the Cabin Intercommunication Data System (CIDS)
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-20-00-350-003-A	Repair of the Non-Textile Floor Covering (NTF)
TASK 25-21-41-000-001-A	Removal of the Passenger Seats
TASK 25-21-41-400-001-A	Installation of the Passenger Seats
TASK 25-22-41-000-001-A	Removal of the Wall-Mounted Cabin-Attendant Seats
TASK 25-22-41-400-001-A	Installation of the Wall-Mounted Cabin-Attendant Seats
TASK 25-22-42-000-001-A	Removal of the Free-Standing Cabin Attendant Seat (CAS)
TASK 25-22-42-400-001-A	Installation of the Free-Standing Cabin Attendant Seat (CAS)
TASK 25-23-41-000-001-A	Removal of the Ceiling Panels
TASK 25-23-41-400-001-A	Installation of the Ceiling Panels
TASK 25-23-43-000-001-A	Removal of the Upper Sidewall Panel
TASK 25-23-43-400-001-A	Installation of the Upper Sidewall Panel
TASK 25-23-44-000-001-A	Removal of the Lower Sidewall Panels (Dado Panels)
TASK 25-23-44-400-001-A	Installation of the Lower Sidewall Panels (Dado Panels)
TASK 25-23-45-000-003-A	Removal of the Door Frame Linings from the Left Aft Passenger/Crew Door
TASK 25-23-45-000-004-A	Removal of the Door Frame Linings from the Right Aft Passenger/Crew Door
TASK 25-23-45-400-005-A	Installation of the Door Frame Linings on the Right Aft Passenger/Crew Door
TASK 25-23-45-400-008-A	Installation of the Door Frame Linings on the Left Aft Passenger/Crew Door
TASK 25-23-48-000-001-A	Removal of the Cove Light Panel
TASK 25-23-48-400-001-A	Installation of the Cove Light Panel
TASK 25-26-41-000-003-A	Removal of the Aft Curtain Rail
TASK 25-26-41-400-003-A	Installation of the Aft Curtain Rail
TASK 25-28-42-000-001-A	Removal of the Non-Textile Floor Covering (NTF)
TASK 25-28-42-400-001-A	Installation of the Non-Textile Floor Covering (NTF)
TASK 25-45-19-000-001-A	Removal of the Lavatory Door
TASK 25-45-19-400-001-A	Installation of the Lavatory Door
TASK 25-45-22-000-001-A	Removal of the Toilet Shroud and the Seat
TASK 25-45-22-400-001-A	Installation of the Toilet Shroud and the Seat
TASK 26-17-00-710-001-A	Operational Test of the Lavatory Smoke-Detection System
TASK 30-71-53-000-003-A	Removal of the Waste-Water De-icing Heater Elements
TASK 30-71-53-400-003-A	Installation of the Waste-Water De-icing Heater Elements
TASK 30-73-53-000-001-A	Removal of the Potable-Water De-icing Heater Elements
TASK 30-73-53-400-001-A	Installation of the Potable-Water De-icing Heater Elements
TASK 33-24-00-710-001-A	Operational Test of the Lavatory Lighting LQ
TASK 33-26-00-710-001-A	Operational Test of the Lavatory Lighted Signs WJ
TASK 33-51-00-710-007-A	Operational Test of the Emergency Lighting in the Cabin with the 'LIGHT EMER' Pushbutton Switch
TASK 35-21-41-000-001-A	Removal of the Emergency Oxygen Containers
TASK 35-21-41-400-001-A	Installation of the Emergency Oxygen Containers
TASK 35-23-00-710-001-A	Operational Check of Manual Mask Release
TASK 38-10-00-614-002-A	Depressurization of the Potable Water System
TASK 38-12-00-710-002-A	Operational Test of the Potable Water-Distribution System (with a Ground Air-Supply Cart)
TASK 38-12-00-710-004-A	Operational Test of a Potable Water Heater
TASK 38-31-00-710-009-A	Operational Test of the Toilet Unit
TASK 38-31-41-000-001-A	Removal of a Toilet Assembly
TASK 38-31-41-400-001-A	Installation of a Toilet Assembly
TASK 38-32-00-710-002-A	Operational Test of the Waste/Water Drain System
CMM 254323
CMM 254612
TASK 11-00-00-00	PLACARDS AND MARKINGS - DESCRIPTION AND OPERATION
TASK 25-43-00-00	AFT LAVATORIES - DESCRIPTION AND OPERATION
Lower Attachments ** ON A/C NOT FOR ALL
Lower Attachments ** ON A/C NOT FOR ALL
Door Sill ** ON A/C NOT FOR ALL
Upper Attachment ** ON A/C NOT FOR ALL
Upper Attachments ** ON A/C NOT FOR ALL
Water Connections ** ON A/C NOT FOR ALL
Water Connections ** ON A/C NOT FOR ALL
Air Connections ** ON A/C NOT FOR ALL
Air Connections ** ON A/C NOT FOR ALL
Electrical Connections
Pelmet ** ON A/C NOT FOR ALL
Pelmet ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 25-43-41-860-057-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) For the location of this component, refer to Para. Component Location (Ref. AMM D/O 25-43-00-00).
(2) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(3) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(4) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
(5) Make sure that the WARNING NOTICE(S) is(are) in position to tell persons not to pressurize the potable water system.
(6) In the aft compartment:
(a) Make sure that the related passenger seats are removed (Ref. AMM TASK 25-21-41-000-001).
(b) Make sure that the free-standing cabin-attendant seat is removed (Ref. AMM TASK 25-22-42-000-001).
(c) Make sure that the panels are removed as follows:
1 Make sure that the ceiling panel is removed (Ref. AMM TASK 25-23-41-000-001).
2 Make sure that the cove light panel is removed (Ref. AMM TASK 25-23-48-000-001).
3 Make sure that the upper sidewall panel is removed (Ref. AMM TASK 25-23-43-000-001).
4 Make sure that the lower sidewall panel is removed (Ref. AMM TASK 25-23-44-000-001).
5 Make sure that the door frame lining-panels are removed (Ref. AMM TASK 25-23-45-000-003) and (Ref. AMM TASK 25-23-45-000-004).
(7) In the lavatory:
(a) Make sure that the lavatory doors are removed (Ref. AMM TASK 25-45-19-000-001).
(b) Make sure that the toilet shroud is removed (Ref. AMM TASK 25-45-22-000-001).
(c) Make sure that the toilet assembly is removed (Ref. AMM TASK 38-31-41-000-001).
(d) Make sure that emergency oxygen container 31WR is removed (Ref. AMM TASK 35-21-41-000-001).

Subtask 25-43-41-860-057-R ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).

WARNING: MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.

(2) Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).
(3) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(4) Make sure that the WARNING NOTICE(S) is (are) in position to tell persons not to do the servicing of the potable water system.
(5) For the location of this component, refer to paragraph Component Location
(Ref. AMM D/O 25-43-00-00).
(6) Make sure that the Cabin Intercommunication Data System (CIDS) is de- energized
(Ref. AMM TASK 23-73-00-862-001).
(7) In the aft compartment:
(a) If necessary, remove the passenger seat(s) adjacent to the lavatory (Ref. AMM TASK 25-21-41-000-001).
(b) Make sure that the wall-mounted Cabin Attendant Seat(s) (CAS) is (are) removed (Ref. AMM TASK 25-22-41-000-001).
(c) Make sure that the curtain(s) and the curtain rail(s) are removed (Ref. AMM TASK 25-26-41-000-003).
(d) Make sure that these panels are removed:
1 Applicable ceiling panel(s) (Ref. AMM TASK 25-23-41-000-001).
2 Applicable cove light panel(s) (Ref. AMM TASK 25-23-48-000-001).
3 Applicable upper sidewall panel (Ref. AMM TASK 25-23-43-000-001).
4 Applicable lower sidewall panel (Ref. AMM TASK 25-23-44-000-001).
5 Door-frame lining panels (Ref. AMM TASK 25-23-45-000-003).
(8) Make sure that the lavatory door is removed (Ref. AMM TASK 25-45-19-000-001).
(9) Make sure that emergency oxygen container [31WR] is removed (Ref. AMM TASK 35-21-41-000-001).
(10) In the lavatory:
(a) Make sure that the toilet shroud and the seat are removed (Ref. AMM TASK 25-45-22-000-001).
(b) Make sure that the toilet assembly is removed (Ref. AMM TASK 38-31-41-000-001).
(c) If necessary, remove the related waste-water pipe heaters and insulation (Ref. AMM TASK 30-71-53-000-003).
(d) If necessary, remove the related potable-water pipe heaters and insulation (Ref. AMM TASK 30-73-53-000-001).

Subtask 25-43-41-860-059-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) If necessary, examine the Non-Textile Floor covering (NTF).
(a) If the condition of the NTF is not satisfactory, repair it (Ref. AMM TASK 25-20-00-350-003).
(b) If you cannot repair the NTF, replace it (Ref. AMM TASK 25-28-42-000-001) and (Ref. AMM TASK 25-28-42-400-001).

Subtask 25-43-41-865-066-A ** ON A/C NOT FOR ALL

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H07
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H05
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M11
** ON A/C NOT FOR ALL
122VU	AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL	5HU	U21
122VU	AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY	6HU	U19
** ON A/C NOT FOR ALL
2000VU	POT/WASTE WIP-HEATER-CTL	2DW	A01
** ON A/C NOT FOR ALL
2000VU	LIGHT-LAV	1LQ	J01
** ON A/C NOT FOR ALL
2000VU	POT WIP-HEATER-CTL	2DW	A01
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-D	2MB	B02
** ON A/C NOT FOR ALL
2001VU	LAVATORY AFT-OCCUPIED	11WJ	B04
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-D/F	2MB	B02
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER	2MB	B02

Subtask 25-43-41-210-055-A ** ON A/C NOT FOR ALL

D. Preparation for Installation
(1) If necessary, remove the SAFETY BARRIER(S).
(2) Clean the component interfaces and the adjacent area.
(3) Remove the sealant from the floor panel and the attached components with the SCRAPER - NON METALLIC.
(4) Clean the area with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and Textile-Lint free Cotton - (Material No.14SBA1) .
(5) Do an inspection of the component interfaces and the adjacent area.
(6) Make sure that the parts retained from the removed component are clean and in the correct condition.
(7) If necessary, install the new placards:

(8) Prepare the bonding (Ref. AMM TASK 20-28-00-912-802).

4. Procedure
Subtask 25-43-41-210-058-A ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) If necessary, remove the safety barrier(s).
(2) Clean the component interfaces and the adjacent area.
(3) Remove the remaining sealant from the floor panel and the attached components with the SCRAPER - NON METALLIC.
(4) Clean the area with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) and the Textile-Lint free Cotton - (Material No.14SBA1) .
(5) Do an inspection of the component interfaces and the adjacent area.
(6) Make sure that the parts retained from the removed component are clean and in the correct condition.
(7) Make sure that the placards of the retained/new components are in the correct position and in a good condition.
(8) If necessary, install the new placards:

(9) Prepare the surface of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-803).

Subtask 25-43-41-420-075-A ** ON A/C NOT FOR ALL

B. Lavatory Assembly

CAUTION: WHEN YOU MOVE A HEAVY COMPONENT, DO NOT PUSH IT ALONG THE CABIN FLOOR OR LET IT RUB AGAINST THE FLOOR. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE CABIN FLOOR AND/OR THE COMPONENT.

(1) For the assembly of the lavatory refer to the manufacturer's Component Maintenance Manual CMM 254612.

Subtask 25-43-41-420-075-B ** ON A/C NOT FOR ALL

B. Assembly of the Lavatory

WARNING: YOU MUST MAKE SURE THAT YOU CAN HOLD THE COMPONENT BEFORE YOU REMOVE/INSTALL IT. THE COMPONENT IS HEAVY. IF IT FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.

(1) For the assembly of the lavatory, CMM 254323.

Subtask 25-43-41-420-076-A ** ON A/C NOT FOR ALL

C. Installation of the Lower Attachments

Lower Attachments ** ON A/C NOT FOR ALL

(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Put the bushes (7) and new AIPC 25-43-55-50-090 PACKINGS (8) in position at the attachment point locations.
(3) Put the lavatory assembly in position.
(4) Put the eccentric bushes (5) and (4) and the washers (3) and (2) in position.
(5) If necessary, turn the eccentric bushes (5) and (4) until is possible to install the bolts (1).
(6) Install the bolts (1) and tighten them.
(7) Install the covers (6).

Subtask 25-43-41-420-076-E ** ON A/C NOT FOR ALL

C. Installation of the Lower Attachments

Lower Attachments ** ON A/C NOT FOR ALL

(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Put the bushes (7) and the new AIPC 25-43-55-50-090 PACKINGS (8) in position at the attachment point locations.

CAUTION: WHEN YOU MOVE A HEAVY COMPONENT, DO NOT PUSH IT ALONG THE CABIN FLOOR OR LET IT RUB AGAINST THE FLOOR. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE CABIN FLOOR AND/OR THE COMPONENT.

(3) Put the lavatory assembly in position.
(4) Put the eccentric bushes (5) and (4) and the washers (3) and (2) in position.
(5) If necessary, turn the eccentric bushes (5) and (4) until it is possible to install the bolts (1).
(6) Install the bolts (1).
(7) TORQUE the bolts (1) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )

.
(8) Install the covers (6).

Subtask 25-43-41-420-076-R ** ON A/C NOT FOR ALL

C. Installation of the Lower Attachments

Lower Attachments ** ON A/C NOT FOR ALL

(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Put the new AIPC 25-43-55-50-090 PACKINGS (8) and the bushes (7) in position.

CAUTION: WHEN YOU MOVE A HEAVY COMPONENT, DO NOT PUSH IT ALONG THE CABIN FLOOR OR LET IT RUB AGAINST THE FLOOR. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE CABIN FLOOR AND/OR THE COMPONENT.

(3) Put the lavatory assembly in position.
(4) Put the eccentric bushings (5) and (4) in position.
(5) If necessary, turn the eccentric bushings (5) and (4) clockwise or counterclockwise until it is possible to install the screws (1).
(6) If necessary, turn the set screws (6) clockwise or counterclockwise to adjust the vertical position of the lavatory.
(7) Install the washers (3).
(8) If you removed the washers (2), install them.
(9) Apply Synthetic Oil base Grease-General Purpose Clay Thickened - (Material No.03GBB1) to the threads of the screws (1).
(10) Install the screws (1).
(11) TORQUE the screws (1) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )

(12) Make sure that the clearance between the flange of the eccentric bushings (5) and the fittings is 0.5 mm (0.0197 in.) minimum.
(13) Apply Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) to the heads of the screws (1).
(14) Put the fitting (9) in position and install the screws (10).
(15) Tighten the screws (10).
(16) Put the kickstrip (11) in position and install the screws (12).
(17) Tighten the screws (12).

Subtask 25-43-41-420-090-A ** ON A/C NOT FOR ALL

D. Installation of the Door Sill

Door Sill ** ON A/C NOT FOR ALL

(1) If the spacer (3) is removed, install it.
(2) Apply Non Hardening Jointing Putty-Medium Temp. Area Chromate Free - (Material No.06LCB1) to the threads of the screws (1).
(3) Put the door sill (2) in position and install the screws (1).
(4) TORQUE the screws (1) to between 0.40 and 0.32 m.daN (35.40 and 28.32 lbf.in )

.
(5) Apply Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) to the floor pan in the inner part of the lavatory around the door sill (2).
(6) Apply Silicone Adhesive Sealant-General Purpose One part legacy (Material No.06CMD9) to the door sill (2) and the heads of the screws (1).

Subtask 25-43-41-420-077-A ** ON A/C NOT FOR ALL

E. Installation of the Upper Attachment

Upper Attachment ** ON A/C NOT FOR ALL

(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Put the tie-rod (3) in position and install the quick-release pin (2).
(a) If necessary, adjust the tie-rod (3) as follows:
1 Cut and discard the lockwire and loosen the locknuts (1).
2 Turn the tie-rod (3) until you can install the quick release pin (2).
3 Tighten each locknut (1) and safety them with stainless steel lockwire 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
(b) Make sure that the tie-rod ends are safetied.
(3) Make sure that the work area is clean and clear of tools and other items.

Subtask 25-43-41-420-077-D ** ON A/C NOT FOR ALL

E. Installation of the Upper Attachments

Upper Attachments ** ON A/C NOT FOR ALL

(1) Put the tie-rods (3) and (7) in position on the aircraft structure and install the quick-release pins (4) and (6).

WARNING: USE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(a) If necessary, adjust the tie-rods (3) and (7) as follows:

NOTE: The tie-rod is adjustable in the range of +/- 12.7 mm (0.5000 in.).

1 Cut and discard the lockwire.
2 Loosen the locknuts (2) and (8).
3 Turn the tie-rods (3) and (7) clockwise or counterclockwise until you can install the quick-release pins (5) and (9).
4 Tighten the locknuts (2) and (8) and safety them with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy - (Ref. AMM TASK 20-11-11-911-001).
(2) Hold the tie-rods (3) and (7) in position on the lavatory structure and install the quick-release pins (5) and (9).
(3) Make sure that the tie-rod ends (1) and (10) are safetied.

Subtask 25-43-41-930-055-A ** ON A/C NOT FOR ALL

F. Markings on the Ventilation Connections, the Potable Water Connection and the Waste-Water Drain Connection
(1) When you connect/install the components, refer to the match marks made during the removal procedure.

Subtask 25-43-41-420-078-A ** ON A/C NOT FOR ALL

G. Installation of the Water Connections

Water Connections ** ON A/C NOT FOR ALL

WARNING: DO NOT DO WORK ON THE TOILET WASTE SYSTEM AND THE POTABLE WATER SYSTEM AT THE SAME TIME. THIS WILL PREVENT CONTAMINATION OF THE POTABLE WATER SYSTEM. SUCH CONTAMINATION CAN BE DANGEROUS TO HEALTH.

WARNING: MAKE SURE THAT THE EQUIPMENT YOU USE FOR THIS PROCEDURE IS CLEAN AND APPROVED FOR THE POTABLE WATER SYSTEM. IF NOT IT CAN CAUSE CONTAMINATION OF THE POTABLE WATER SYSTEM.

WARNING: BEFORE YOU DO WORK ON THE POTABLE WATER SYSTEM, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION. (CONTAMINATION FROM TOILET WASTE IS DANGEROUS TO HEALTH).

WARNING: ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN PERFORMING TASK ON WASTE SYSTEM.

(1) Connect the potable water connection as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the potable water hose (14) in position on the tube (15) and tighten the nut (16).
(c) Make sure that the potable water hose (14) is not twisted.
(d) Put the bonding straps (4) and the washers (3) in position and install the bolts (1) and the nuts (2). Do the bonding (Ref. AMM TASK 20-28-00-912-802).
(e) Tighten the nuts (2).
(2) Connect the waste-water drain connection as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamp (12) in position on the drain tube (13).
(c) Connect the drain tube (13) to the pipe (11).
(d) Move the clamp (12) on the overlap area and tighten it.
(3) Connect the vacuum drain connection as follows:
(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the sleeve (7) in position on the vacuum waste line (5).
(c) Apply Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) to new AIPC 38-31-04-02-040 O-RING (6) and AIPC 38-31-04-02-040 O-RING (9).
(d) Put the O-rings (6) and (9) in position on the vacuum waste line (5) and the vacuum waste tube (10).
(e) Put the vacuum waste tube (10) in position.
(f) Move the sleeve (7) over the O-rings (6) and (9) and install the clamp (8).
(g) Tighten the clamp (8).

Subtask 25-43-41-420-078-K ** ON A/C NOT FOR ALL

G. Installation of the Water Connections

Water Connections ** ON A/C NOT FOR ALL

WARNING: DO NOT DO WORK ON THE WASTE WATER SYSTEM AND THE POTABLE WATER SYSTEM AT THE SAME TIME. THIS WILL PREVENT CONTAMINATION OF THE POTABLE WATER SYSTEM. SUCH CONTAMINATION CAN BE DANGEROUS TO HEALTH.

(1) Connect the potable water connection as follows:

WARNING: MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.

WARNING: MAKE SURE THAT THE EQUIPMENT YOU USE FOR THIS PROCEDURE IS CLEAN AND APPROVED FOR THE POTABLE WATER SYSTEM. IF NOT IT CAN CAUSE CONTAMINATION OF THE POTABLE WATER SYSTEM.

WARNING: BEFORE YOU DO WORK ON THE POTABLE WATER SYSTEM, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION. (CONTAMINATION FROM TOILET WASTE IS DANGEROUS TO HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the potable water hose (10) in position and connect the nut (12) to the end fitting of the tube (11).
(c) Make sure that the potable water hose (10) is not twisted.
(d) TORQUE the nut (12) to between 5.90 and 5.40 m.daN (43.51 and 39.82 lbf.ft )

.
(2) Connect the waste-water drain connection as follows:

WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:

ON THE WASTE WATER SYSTEM, OR
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE WATER SYSTEM.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (WASTE WATER IS DANGEROUS FOR HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamp (8) in position on the waste-water drain hose (7).
(c) Connect the waste-water drain hose (7) to the waste-water drain tube (9).
(d) Move the waste-water drain hose (7) along the waste-water drain tube (9) and measure dimension A. Dimension A must be 25 -5 mm or +5 mm (0.9843 -0.1969 in. or +0.1969 in.).
(e) Move the clamp (8) along the waste-water drain hose (7) and measure dimension B. Dimension B must be 5 mm (0.1969 in.) from the end of the waste-water drain hose (7).
(f) Tighten the clamp (8).
(3) Connect the vacuum waste connection as follows:

WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:

ON THE TOILET WASTE SYSTEM, OR
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE SYSTEM.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (TOILET WASTE IS DANGEROUS FOR HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the sleeves (16) in position on the vacuum waste hose (6).
(c) Apply Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to the new AIPC 38-31-84-02-030 O-RINGS (14).
(d) Put the O-rings (14) in position on the vacuum waste hose (6) and the vacuum waste tubes (13) and (17).
(e) Put the vacuum waste hose (6) in position on the vacuum waste tubes (13) and (17).
(f) Move the sleeves (16) to the center position between the vacuum waste hose (6) and the vacuum waste tubes (13) and (17).
(g) Install the clamps (15).
(4) Connect the bonding straps (3) as follows:
(a) Release the bonding straps (3) from the lavatory structure.
(b) Put the bonding straps (3) in position, then install the washers (2) and the screws (1).
(c) If the washers (4) and the nuts (5) are removed, install them.
(d) Tighten the nuts (5).
(e) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).

Subtask 25-43-41-420-078-O ** ON A/C NOT FOR ALL

G. Installation of the Water Connections

Water Connections ** ON A/C NOT FOR ALL

(1) Connect the potable water connection as follows:

WARNING: MAKE SURE THAT THE POTABLE WATER SYSTEM IS DEPRESSURIZED. A PRESSURIZED SYSTEM CAN CAUSE INJURY TO PERSONS WHEN THEY DO WORK ON IT.

WARNING: MAKE SURE THAT THE EQUIPMENT YOU USE FOR THIS PROCEDURE IS CLEAN AND APPROVED FOR THE POTABLE WATER SYSTEM. IF NOT IT CAN CAUSE CONTAMINATION OF THE POTABLE WATER SYSTEM.

WARNING: BEFORE YOU DO WORK ON THE POTABLE WATER SYSTEM, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION. (CONTAMINATION FROM TOILET WASTE IS DANGEROUS TO HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the potable water hose (14) in position and connect the nut (16) to the end fitting of the tube (15).
(c) Make sure that the potable water hose (14) is not twisted.
(d) TORQUE the nut (16) to between 5.90 and 5.40 m.daN (43.51 and 39.82 lbf.ft )

.
(2) Connect the waste-water drain connection as follows:

WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:

ON THE WASTE WATER SYSTEM, OR
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE WATER SYSTEM.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (WASTE WATER IS DANGEROUS FOR HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the clamp (12) in position on the waste-water drain hose (13).
(c) Connect the waste-water drain hose (13) to the waste-water drain tube (11).
(d) Tighten the clamp (12).
(3) Connect the vacuum drain connection as follows:

WARNING: ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:

ON THE TOILET WASTE SYSTEM, OR
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE SYSTEM.

WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND WATER. THIS WILL PREVENT INFECTION (TOILET WASTE IS DANGEROUS FOR HEALTH).

(a) Remove the PLUG-BLANKING from each disconnected line end.
(b) Put the sleeve (7) in position on the vacuum waste hose (5).
(c) Apply Mineral Oil base Grease-General Purpose Medium Temp. - (Material No.03FBB1) to the new AIPC 38-31-84-02-030 O-RING (6) and AIPC 38-31-84-02-030 O-RING (9).
(d) Put the O-rings (6) and (9) in position on the vacuum waste hose (5) and the vacuum waste tube (10).
(e) Put the vacuum waste hose (5) in position on the vacuum waste tube (10).
(f) Move the sleeve (7) to the center position between the vacuum waste hose (5) and the vacuum waste tube (10).
(g) Install the clamp (8)
(4) Connect the bonding straps (4) as follows:
(a) Release the bonding straps (4) from the lavatory structure.
(b) Connect the bonding straps (4) and install the washers (3), the bolts (1) and the nuts (2). Do the bonding (Ref. AMM TASK 20-28-00-912-802).
(c) Tighten the nuts (2).

Subtask 25-43-41-420-079-A ** ON A/C NOT FOR ALL

H. Installation of the Air Connections

Air Connections ** ON A/C NOT FOR ALL

(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Remove the PLUG-BLANKING from each disconnected line end.
(3) Make sure that the line ends are clean and clear.
(4) Put the clamp (2) in position and connect the air extraction hose (3) to the tube (1).
(5) Tighten the clamp (2).
(6) Put the clamp (5) in position and connect the ventilation hose (4) to the tube (6).
(7) Tighten the clamp (5).

Subtask 25-43-41-420-079-B ** ON A/C NOT FOR ALL

H. Installation of the Air Connections

Air Connections ** ON A/C NOT FOR ALL

(1) Connect the air-extraction hose (1) as follows:
(a) If the tube (3) is safetied to the aircraft structure, release it.
(b) If the air-extraction hose (1) is safetied to the lavatory structure, release it.
(c) Remove the PLUG-BLANKING from each disconnected line end.
(d) Make sure that the line ends are clean and clear.
(e) Put the clamp (2) in position on the air-extraction hose (1).
(f) Connect the air-extraction hose (1) to the tube (3).
(g) Move the air-extraction hose (1) along the tube (3) and measure dimension B. Dimension B must be 25 -5 mm or +5 mm (0.9843 -0.1969 in. or +0.1969 in.).
(h) Move the clamp (2) along the air-extraction hose (1) and measure dimension A. Dimension A must be 5 mm (0.1969 in.) from the end of the air-extraction hose (1).
(i) Tighten the clamp (2).
(2) Connect the ventilation hose (4) as follows:
(a) If the tube (6) is safetied to the lavatory structure, release it.
(b) Remove the PLUG-BLANKING from each disconnected line end.
(c) Make sure that the line ends are clean and clear.
(d) Put the clamp (5) in position on the ventilation hose (4).
(e) Connect the ventilation hose (4) to the tube (6).
(f) Move the ventilation hose (4) along the tube (6) and measure dimension B. Dimension B must be 25 -5 mm or +5 mm (0.9843 -0.1969 in. or +0.1969 in.).
(g) Move the clamp (5) along the ventilation hose (4) and measure dimension A. Dimension A must be 5 mm (0.1969 in.) from the end of the ventilation hose (4).
(h) Tighten the clamp (5).

Subtask 25-43-41-420-080-A ** ON A/C NOT FOR ALL

I. Installation of the Electrical Connections

Electrical Connections ** ON A/C NOT FOR ALL

(1) Release electrical connectors 7195VC-A (1) and 7197VC-A (2) from the aircraft structure.
(2) Remove the CAP-BLANKING from each electrical connector and receptacle.
(3) Make sure that all the electrical connections are clean and in the correct condition.
(4) Connect the electrical connectors (1) and (2).
(5) Put the electrical harnesses (3) in position and safety them with the new TIE WRAP (4).

Subtask 25-43-41-410-077-A ** ON A/C NOT FOR ALL

J. Installation of the Miscellaneous Lavatory Equipment
(1) In the lavatory:
(a) Install the toilet assembly (Ref. AMM TASK 38-31-41-400-001).
(b) Do not install the toilet shroud at this time.
(2) Install the lavatory door (Ref. AMM TASK 25-45-19-400-001).
(3) Install emergency oxygen container [31WR] (Ref. AMM TASK 35-21-41-400-001).

Subtask 25-43-41-865-067-A ** ON A/C NOT FOR ALL

K. 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
49VU	LIGHTING/EMER LT/CABIN	79WL	H07
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H05
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M12
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M11
** ON A/C NOT FOR ALL
122VU	AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL	5HU	U21
122VU	AIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY	6HU	U19
** ON A/C NOT FOR ALL
2000VU	POT/WASTE WIP-HEATER-CTL	2DW	A01
** ON A/C NOT FOR ALL
2000VU	LIGHT-LAV	1LQ	J01
** ON A/C NOT FOR ALL
2000VU	POT WIP-HEATER-CTL	2DW	A01
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-D	2MB	B02
** ON A/C NOT FOR ALL
2001VU	LAVATORY AFT-OCCUPIED	11WJ	B04
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-D/F	2MB	B02
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER	2MB	B02

Subtask 25-43-41-861-055-A ** ON A/C NOT FOR ALL

L. Energize the CIDS (Ref. AMM TASK 23-73-00-861-001).

Subtask 25-43-41-942-054-A ** ON A/C NOT FOR ALL

M. Safety Precautions
(1) Remove the WARNING NOTICE(S).

Subtask 25-43-41-710-058-A ** ON A/C NOT FOR ALL

N. Operational Test of the Lavatory Systems
(1) Do the test of these potable water/waste-water systems:

The potable water system (Ref. AMM TASK 38-12-00-710-002)
The waste-water drain system (Ref. AMM TASK 38-32-00-710-002)
The toilet system (Ref. AMM TASK 38-31-00-710-009).

(a) If you find leaks, repair them.
(2) Do the functional test of the applicable air-extraction point (Ref. AMM TASK 21-23-00-720-002).
(3) Do the operational test of the individual-air outlet system (Ref. AMM TASK 21-21-00-710-002).
(4) Do the operational test of these electrical systems:

The lavatory lighting (Ref. AMM TASK 33-24-00-710-001)
The lavatory emergency lighting (Ref. AMM TASK 33-51-00-710-007)
The lavatory lighted signs (Ref. AMM TASK 33-26-00-710-001)
The potable water heater (Ref. AMM TASK 38-12-00-710-004)
The lavatory smoke-detection system (Ref. AMM TASK 26-17-00-710-001)
The Passenger Address (PA) system (Ref. AMM TASK 23-73-00-710-005)
The passenger call system (Ref. AMM TASK 23-73-00-710-007)
The manual mask release (Ref. AMM TASK 35-23-00-710-001).

(5) Make sure that the lavatory auxiliary light is on.

Subtask 25-43-41-420-081-A ** ON A/C NOT FOR ALL

O. Installation of the Pelmet

Pelmet ** ON A/C NOT FOR ALL

(1) When you connect/install the components, refer to the match marks made during the removal procedure.
(2) Put the pelmet (4) in position and install the screws (5).
(3) Tighten the screws (5).
(4) Connect the bonding strap (3) and install the washer (2) and the bolt (1). Do the bonding (Ref. AMM TASK 20-28-00-912-802).
(5) Tighten the bolt (1).

Subtask 25-43-41-710-058-B ** ON A/C NOT FOR ALL

P. Operational Test of the Lavatory Systems
(1) Do the test of these potable water/waste-water systems:

Potable water system (Ref. AMM TASK 38-12-00-710-002)
Waste-water drain system (Ref. AMM TASK 38-32-00-710-002)
Vacuum toilet system (Ref. AMM TASK 38-31-00-710-009).

Make sure that there are no leaks.
(2) Do the functional test of the applicable air-extraction point (Ref. AMM TASK 21-23-00-720-002).
(3) Do the operational test of the individual air-outlet system (Ref. AMM TASK 21-21-00-710-002).
(4) Do the operational test of these electrical systems/units:

CIDS (Ref. AMM TASK 23-73-00-740-005)
Lavatory lighting (Ref. AMM TASK 33-24-00-710-001)
Lavatory emergency lighting (Ref. AMM TASK 33-51-00-710-007)
Lavatory lighted signs (Ref. AMM TASK 33-26-00-710-001)
Potable water heater (Ref. AMM TASK 38-12-00-710-004)
Lavatory smoke-detection system (Ref. AMM TASK 26-17-00-710-001)
Passenger Address (PA) system (Ref. AMM D/O 23-73-00-71)
Passenger call system (Ref. AMM D/O 23-73-00-71)
Manual mask release (Ref. AMM TASK 35-23-00-710-001).

(5) Make sure that the lavatory auxiliary light is on.

Subtask 25-43-41-420-081-D ** ON A/C NOT FOR ALL

Q. Installation of the Pelmet

Pelmet ** ON A/C NOT FOR ALL

(1) Put the pelmet (4) in position and tighten the screws (5).
(2) Release the bonding strap (3) from the top of the lavatory.
(3) Connect the bonding strap (3), then install the washer (2) and the screw (1).
(4) Tighten the screw (1).
(5) Do the electrical resistance measurement and the final protection of the bonding point(s)
(Ref. AMM TASK 20-28-00-912-802).

5. Close-up
Subtask 25-43-41-410-078-A ** ON A/C NOT FOR ALL

A. Close Access
(1) In the lavatory, install the toilet shroud (Ref. AMM TASK 25-45-22-400-001).
(2) In the aft compartment:
(a) Install the related passenger seats (Ref. AMM TASK 25-21-41-400-001).
(b) Install the panels:
1 Install the applicable ceiling panel (Ref. AMM TASK 25-23-41-400-001).
2 Install the cove light panel (Ref. AMM TASK 25-23-48-400-001).
3 Install the upper sidewall panel (Ref. AMM TASK 25-23-43-400-001).
4 Install the lower sidewall panel (Ref. AMM TASK 25-23-44-400-001).
5 Install the door-frame lining panels (Ref. AMM TASK 25-23-45-400-008) and (Ref. AMM TASK 25-23-45-400-005).
(c) Install the free-standing cabin-attendant seat (Ref. AMM TASK 25-22-42-400-001).
(d) Close all doors.
(e) Make sure that the work area is clean and clear of tools and other items.
(f) Remove the warning notice(s).

Subtask 25-43-41-410-078-J ** ON A/C NOT FOR ALL

A. Close Access
(1) In the lavatory and the aft compartment:
(a) If the related waste-water pipe heaters and insulation are removed, install them (Ref. AMM TASK 30-71-53-400-003).
(b) If the related potable-water pipe heaters and insulation are removed, install them (Ref. AMM TASK 30-73-53-400-001).
(c) Install the toilet shroud and the seat (Ref. AMM TASK 25-45-22-400-001).
(d) Install these panels:
1 Applicable ceiling panel(s) (Ref. AMM TASK 25-23-41-400-001).
2 Applicable cove light panel(s) (Ref. AMM TASK 25-23-48-400-001).
3 Applicable upper sidewall panel (Ref. AMM TASK 25-23-43-400-001).
4 Applicable lower sidewall panel (Ref. AMM TASK 25-23-44-400-001).
5 Door-frame lining panels (Ref. AMM TASK 25-23-45-400-008).
(e) If the passenger seat(s) adjacent to the lavatory is (are) removed, install it (them) (Ref. AMM TASK 25-21-41-400-001).
(f) Install the wall-mounted CAS(s) (Ref. AMM TASK 25-22-41-400-001).
(g) Install the curtain rail(s) and the curtain(s) (Ref. AMM TASK 25-26-41-400-003).
(h) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(i) Make sure that the work area is clean and clear of tools and other items.

Subtask 25-43-41-862-052-A ** ON A/C NOT FOR ALL

B. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:35:22 UTC