W DOC AIRBUS | AMM A320F

Removal of Lavatory H (Design Lav. M)

TASK 25-43-44-000-003-A
Removal of Lavatory H (Design Lav. M)

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: 5054MM42 ** 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
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
200
UPPER HALF FUSELAGE
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 12-24-38-680-001-A
Draining of the Potable Water System (with Electrical Power)
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 25-33-42-000-001-A
Removal of the Aft Galley Unit
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 38-30-00-010-002-A
Removal of the Toilet Drain Lines
TASK 38-31-41-000-001-A
Removal of a Toilet Assembly
F Pelmet
F Electrical Connections
F Air Connections
F Water Connections
F Upper Attachments
F Lower Attachments
F Disassembly/Assembly of the Lavatory
F Floor Pan Assembly
3. Job Set-up
Subtask 25-43-44-861-051-A ** ON A/C NOT FOR ALL
A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
Subtask 25-43-44-680-051-A ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
   (1) Drain the potable water system (Ref. AMM TASK 12-24-38-680-001).
   (2) Put the WARNING NOTICE(S) in position to tell persons not to do the servicing of the water system.
Subtask 25-43-44-865-064-A ** ON A/C NOT FOR ALL
C. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VULIGHTING/EMER LT/CABIN79WLH07
49VUOXYGEN/PASSENGER/ACTUATION7WRHA08
49VUOXYGEN/PASSENGER/ACTUATION6WRHA07
49VUOXYGEN/PASSENGER/ACTUATION5WRHA06
49VUOXYGEN/PASSENGER/ACTUATION4WRHA05
49VUOXYGEN/PASSENGER/CTL AND WARN3WRHA04
49VUOXYGEN/PASSENGER/CTL AND WARN2WRHA03
49VUOXYGEN/PASSENGER/CTL AND WARN1WRHA02
121VUCOM NAV/CIDS/DEU A NORM/R FWD164RHM11
121VUCOM NAV/CIDS/DEU A NORM/L FWD163RHM10
122VUAIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/CTL5HUU21
122VUAIR COND/LAV/GALLEY VENT CTL/EXTRACT FAN/SPLY6HUU19
2000VUPOT WIP-HEATER-CTL2DWA01
2000VULIGHT-LAV1LQJ01
2001VUVACU TOIL SYS-VACUUM-GEN33MGA08
2001VUVACU TOIL SYS-VACU-SYS35MGA06
2001VUVACU TOIL SYS-LAV PWR-L45MGA02
2001VUWATER SYS-QUANT-IND1MAB06
2001VULAVATORY AFT-OCCUPIED11WJB04
2001VULAV AFT-HOT WATER-D/L2MBB02
Subtask 25-43-44-865-070-A ** ON A/C NOT FOR ALL
D. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2000VUPOT WIP-HEATER-CTL2DWA01
2000VULIGHT-LAV1LQJ01
2001VUVACU TOIL SYS-VACUUM-GEN33MGA08
2001VUVACU TOIL SYS-VACU-SYS35MGA06
2001VUVACU TOIL SYS-LAV PWR-L45MGA02
2001VUWATER SYS-QUANT-IND1MAB06
2001VULAVATORY AFT-OCCUPIED11WJB04
2001VULAV AFT-HOT WATER-D/L2MBB02
Subtask 25-43-44-010-069-K ** 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 galley (Ref. AMM TASK 25-33-42-000-001).
   (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 34WR1 (Ref. AMM TASK 35-21-41-000-001).
4. Procedure
Subtask 25-43-44-020-063-B ** ON A/C NOT FOR ALL
A. Removal of the Pelmet
F Pelmet ** ON A/C NOT FOR ALL
   (1) Remove the screws (3) and the washers (2), lift and remove the pelmet (1).
Subtask 25-43-44-020-064-A ** ON A/C NOT FOR ALL
B. Removal of the Electrical Connections:
F Electrical Connections ** ON A/C NOT FOR ALL
   (1) On the lavatory ceiling, disconnect the electrical connector (10).
   (2) Open the sanitary-cabinet access door (3).
   (3) Disconnect the electrical connectors (7), (8), (9) and (11).
   (4) Remove and discard the cable ties (6) from the mounts (5).
   (5) Remove the screws (12), the washers (13) and remove the bracket (14).
   (6) Disconnect the electrical connectors from the flush switch (1).
   (7) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
   (8) Close the sanitary-cabinet access door (3).
Subtask 25-43-44-020-065-B ** ON A/C NOT FOR ALL
C. Removal of the Air Connections
F Air 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 (10) and (12) and disconnect the ventilation hoses (9) and (8).
     (b) Remove the screws (4), washers (5), spacers (7) and clamps (6).
     (c) Put the PLUG-BLANKING in each disconnected line end.
Subtask 25-43-44-020-066-B ** ON A/C NOT FOR ALL
D. Removal of the Water Connections
F 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) Open the sanitary-cabinet access door (1).
   (2) Put a CONTAINER 1 L (1/4 USGAL) in position below the water connections that you will disconnect.
   (3) Disconnect the potable water connections:
     (a) Remove the nut (5) and the washer (6) and disconnect the bonding straps (4).
     (b) Loosen the nut (2) and disconnect the potable water tube (3) from the fitting (7).
     (c) Loosen the nuts (2) and remove the potable water hose (8).
     (d) Put the PLUG-BLANKING in each disconnected line end.
   (4) Disconnect the waste-water drain connection:
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 clamps (9) and disconnect the sleeve (10) from the drain tube (11).
     (b) Remove the screw (15), washer(s) (14), nut (13) and clamp (12).
     (c) Put the PLUG-BLANKING in each disconnected line end.
Subtask 25-43-44-020-067-B ** ON A/C NOT FOR ALL
E. Removal of the Upper Attachment(s)
F Upper Attachments ** ON A/C NOT FOR ALL
   (1) Remove the panel (1).
   (2) Remove the quick-release pin (2) and disconnect the tie rod (5) from the aircraft structure.
Subtask 25-43-44-020-068-D ** ON A/C NOT FOR ALL
F. Removal of the Lower Attachments
F Lower Attachments ** ON A/C NOT FOR ALL
   (1) Remove the covers (5).
   (2) Remove the bolts (9), the washers (8), the bushes (7) and (6) and the lavatory module.
   (3) Remove the screws (4), the pins (1), the stoppers (3) and the fittings (2) from the seat tracks.
Subtask 25-43-44-020-069-B ** ON A/C NOT FOR ALL
G. Disassembly of the Lavatory
F Disassembly/Assembly of the Lavatory ** ON A/C NOT FOR ALL
   (1) Remove the sealant from around the floor pan assembly (1).
   (2) Remove the screws (2) and the washers (3).
   (3) Remove the screws (4) and the washers (5).
   (4) Lift and remove the lavatory assemblies (11) and (12) from the floor pan assembly (1).
   (5) Remove the screws (7), (9) and (16), washers (8) and (15) and ceiling panel (6).
   (6) Remove the screw (10).
   (7) Remove the screws (13) and the washers (14).
   (8) Remove the lavatory assemblies (11) and (12) from the aircraft.
Subtask 25-43-44-020-070-B ** ON A/C NOT FOR ALL
H. Removal of the Floor Pan Assembly
F Floor Pan Assembly ** ON A/C NOT FOR ALL
   (1) If installed, remove the screws (4) from the floor angle brackets (5).
   (2) If installed, remove the rubber strips (6), (8) and (9) from the floor panel (7).
   (3) Remove the screws (3), door sill (2) and floor pan assembly (1).
[Rev.10 from 2021] 2026.03.31 23:35:28 UTC
"Aviabrain" 2025