W DOC AIRBUS | AMM A320F

Removal of Lavatory H

TASK 25-43-44-000-001-A
Removal of Lavatory H

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.
ZONE: 200
FIN: 5054MM41 ** 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
CAP - BLANKING
No specific
1
CONTAINER 1 L (1/4 USGAL)
No specific
AR
PLUG - BLANKING
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
1
SCRAPER - NON METALLIC
No specific
1
WARNING NOTICE(S)
 B. Consumable Materials
REFERENCE
DESIGNATION
No specific
CABLE TIES
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
200
UPPER HALF FUSELAGE
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 12-24-38-680-001-A
Draining of the Potable Water System (with Electrical Power)
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 25-21-41-000-001-A
Removal of the Passenger Seats
TASK 25-23-41-000-001-A
Removal of the Ceiling Panels
TASK 25-23-43-000-001-A
Removal of the Upper Sidewall Panel
TASK 25-23-44-000-001-A
Removal of the Lower Sidewall Panels (Dado Panels)
TASK 25-23-48-000-001-A
Removal of the Cove Light Panel
TASK 25-27-46-000-001-A
Removal of the Forward Doghouse
TASK 25-45-19-000-001-A
Removal of the Lavatory Door
TASK 25-45-22-000-001-A
Removal of the Toilet Shroud and the Seat
TASK 35-21-41-000-001-A
Removal of the Emergency Oxygen Containers
TASK 38-10-00-614-002-A
Depressurization of the Potable Water System
TASK 38-30-00-010-002-A
Removal of the Toilet Drain Lines
TASK 38-31-41-000-001-A
Removal of a Toilet Assembly
F Electrical and Air Ventilation Connections ** ON A/C NOT FOR ALL
F Electrical and Air Ventilation Connections ** ON A/C NOT FOR ALL
F Potable Water and Waste Water Connections
F Upper Attachments ** ON A/C NOT FOR ALL
F Lower Attachments
F Pelmet and Door Sill
F Lavatory Disassembly - Electrical Connections
F Lavatory Subassemblies
3. Job Set-up
Subtask 25-43-44-861-050-A ** ON A/C NOT FOR ALL
A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
Subtask 25-43-44-680-050-A ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) Depressurize the potable water system (Ref. AMM TASK 38-10-00-614-002).
   (2) Drain the potable water system (Ref. AMM TASK 12-24-38-680-001).
   (3) Put the WARNING NOTICE(S) in position to tell persons not to do the servicing of the water system.
Subtask 25-43-44-862-052-A ** ON A/C NOT FOR ALL
C. De-energize the Cabin Intercommunication Data System (CIDS) (Ref. AMM TASK 23-73-00-862-001).
Subtask 25-43-44-865-050-A ** ON A/C NOT FOR ALL
D. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VULIGHTING/EMER LT/CABIN79WLH07
122VUAIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL5HUU21
122VUAIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY6HUU19
2000VULIGHT-LAV1LQJ01
2001VUWATER SYS-QUANT-IND1MAB06
2001VULAVATORY AFT-OCCUPIED11WJB04
2001VULAV AFT-HOT WATER-D/L2MBB02
Subtask 25-43-44-010-050-I ** ON A/C NOT FOR ALL
E. Get Access
   (1) Remove the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-000-001).
   (2) Remove the applicable ceiling panels (Ref. AMM TASK 25-23-41-000-001).
   (3) Remove the cove light panel (Ref. AMM TASK 25-23-48-000-001).
   (4) Remove the upper sidewall panel (Ref. AMM TASK 25-23-43-000-001).
   (5) Remove the lower sidewall panel (Ref. AMM TASK 25-23-44-000-001).
   (6) Remove the lavatory door (Ref. AMM TASK 25-45-19-000-001).
   (7) Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).
   (8) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001).
   (9) Remove the toilet drain line installed behind the lavatory (Ref. AMM TASK 38-30-00-010-002).
   (10) In the lavatory, remove emergency oxygen container 31WR1 (Ref. AMM TASK 35-21-41-000-001).
Subtask 25-43-44-010-050-N ** ON A/C NOT FOR ALL
E. Get Access
   (1) Remove the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-000-001).
   (2) Remove the doghouse (Ref. AMM TASK 25-27-46-000-001).
   (3) Remove the ceiling panels (Ref. AMM TASK 25-23-41-000-001).
   (4) Remove the cove light panel (Ref. AMM TASK 25-23-48-000-001).
   (5) Remove the upper sidewall panel (Ref. AMM TASK 25-23-43-000-001).
   (6) Remove the lower sidewall panel (Ref. AMM TASK 25-23-44-000-001).
   (7) Remove the lavatory door (Ref. AMM TASK 25-45-19-000-001).
   (8) Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).
   (9) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001).
   (10) Remove the toilet drain line, installed behind the lavatory (Ref. AMM TASK 38-30-00-010-002).
   (11) In the lavatory, remove the emergency oxygen container 31WR1 (Ref. AMM TASK 35-21-41-000-001).
4. Procedure
Subtask 25-43-44-020-056-B ** ON A/C NOT FOR ALL
A. Removal of the Air Connections
F Electrical and Air Ventilation Connections ** ON A/C NOT FOR ALL
   (1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
   (2) Disconnect the air extraction connections:
     (a) Above the lavatory ceiling, loosen the clamp (2) and disconnect the air extraction hose (1).
   (3) Disconnect the ventilation hose:
     (a) Behind the lavatory, loosen the clamp (11) and disconnect the ventilation hose (12).
     (b) Loosen the clamp (9) and disconnect the ventilation hose (7).
     (c) Remove the screw (5), the washer (4), the spacer (8) and clamp (6).
     (d) Put the PLUG-BLANKING in each disconnected line end.
   (4) Disconnect the electrical connection:
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTOR(S) IS(ARE) DISCONNECTED BEFORE YOU DISCONNECT THE BONDING STRAP(S).
     (a) Disconnect the electrical connector (13).
     (b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
Subtask 25-43-44-020-056-H ** ON A/C NOT FOR ALL
A. Removal of the Air Connections
F Electrical and Air Ventilation Connections ** ON A/C NOT FOR ALL
   (1) Disconnect the air extraction connections:
     (a) Above the lavatory ceiling, loosen the clamp (2) and disconnect the air extraction hose (1).
   (2) Disconnect the ventilation hoses:
     (a) Behind the lavatory, loosen the clamps (9) and (11) and disconnect the ventilation hoses (10) and (6).
     (b) Remove the screws (4), the washers (5), the spacers (8) and the clamps (7).
     (c) Put the PLUG-BLANKING in each disconnected line end.
   (3) Disconnect the electrical connection:
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTOR(S) IS(ARE) DISCONNECTED BEFORE YOU DISCONNECT THE BONDING STRAP(S).
     (a) Disconnect the electrical connector (13).
     (b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
Subtask 25-43-44-020-057-H ** ON A/C NOT FOR ALL
B. Removal of the Water Connections
F Potable Water and Waste 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).
   (1) Put the CONTAINER 1 L (1/4 USGAL) in position below the water connections that you will disconnect.
   (2) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
   (3) Disconnect the potable water connections as follows:
     (a) Remove the nut (5) and the washer (4) and disconnect the bonding straps (3).
     (b) Loosen the nut (1) and disconnect the potable water tube (2) from the fitting (6).
     (c) Loosen the nuts (1) and remove the potable water hose (7) from the fittings (6).
     (d) Put the PLUG-BLANKING in each disconnected line end.
   (4) Disconnect the waste-water drain connection as follows:
CAUTION: MAKE MATCH MARK ON THE WASTE WATER AND AIR OUTLET HOSES AND ON THEIR RELATED CONNECTIONS. IF YOU CONNECT ONE OF THESE HOSES TO THE CONNECTION OF THE OTHER HOSE, YOU CAN CAUSE DAMAGE TO EQUIPMENT.
     (a) Loosen the clamp (8) and disconnect the drain tube (9).
     (b) Remove the clamp (8).
     (c) Remove the screws (13), washers (12), spacers (11), nuts (14) and clamps (10).
     (d) Put the PLUG-BLANKING in each disconnected line end.
Subtask 25-43-44-020-060-B ** ON A/C NOT FOR ALL
C. Removal of the Upper Attachments
F Upper Attachments ** ON A/C NOT FOR ALL
   (1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
   (2) Remove the bolts (1) and (3) and the washers (2).
Subtask 25-43-44-020-061-C ** ON A/C NOT FOR ALL
D. Removal of the Lower Attachments
F Lower Attachments ** ON A/C NOT FOR ALL
   (1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
   (2) Remove the covers (5).
   (3) Remove the bolts (9), washers (8), bushes (7) and (6).
   (4) Carefully remove the lavatory unit.
   (5) Remove the screws (4), pins (1), washers (3) and fittings (2) from the seat tracks.
Subtask 25-43-44-020-062-C ** ON A/C NOT FOR ALL
E. Disassembly of the Lavatory
   (1) Remove the pelmet (1) and the door sill (5) as follows:
F Pelmet and Door Sill ** ON A/C NOT FOR ALL
     (a) Remove the screws (3), washers (2) and pelmet (1).
     (b) Remove the screws (6) and the door sill (5) from the floor pan assembly (4).
   (2) Disconnect the electrical connectors (7), (8), (9) and (10) as follows:
F Lavatory Disassembly - Electrical Connections ** ON A/C NOT FOR ALL
     (a) Open the sanitary-cabinet access door (3).
     (b) Disconnect the electrical connectors (10), (7), (8) and (9).
     (c) Remove and discard the CABLE TIES (6) from the mounts (5).
     (d) Remove the cable assemblies (4) and (2).
     (e) Remove the bolts (11), washers (12) and bracket (13).
     (f) Disconnect the cable assembly (4) from the toilet flush switch (1).
     (g) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
     (h) Close the sanitary-cabinet access door (3).
   (3) Disassemble the lavatory assemblies (1) and (3) as follows:
F Lavatory Subassemblies ** ON A/C NOT FOR ALL
     (a) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
     (b) Remove the sealant from around the floor pan assembly (2) with the SCRAPER - NON METALLIC.
     (c) Remove the screws (8) and the washers (7).
     (d) Remove the screws (6) and the washers (5).
     (e) Lift and remove the lavatory assemblies (1) and (3) from the floor pan assembly (2).
     (f) Remove the floor pan assembly (2).
     (g) Remove the screws (4), (12) and (14) and the washers (11) and (13).
     (h) Remove the screw (15) from the door side frame.
     (i) Remove the screws (9) and the washers (10).
     (j) Remove the lavatory assemblies (1) and (3) from the aircraft.
     (k) If necessary, remove the screws (16).
     (l) If installed, remove the washers (21) from the floor angle brackets (17).
     (m) If necessary, remove the rubber strips (18), (20) and (22) from the floor panel (19).
     (n) Remove the floor panel (19) from the aircraft.
[Rev.10 from 2021] 2026.04.01 05:59:25 UTC
"Aviabrain" 2025