Removal of Lavatory E

TASK 25-43-42-000-001-A
Removal of Lavatory E

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: 5052MM ** ON A/C NOT FOR ALL
FIN: 5103MM ** 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	1	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	SCRAPER - NON METALLIC
No specific	1	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05RAC1)	Adhesive Film Tape-- Aluminium Foil - Sound damping -
(Material No.14RAD1)	Cord-- Synthetic fiber Dia: 2.5 mm -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE
162CW, 162DW
251JC, 252AX, 252BX, 262BC, 262TW, 262UW, 262VW
252CX

D. 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 25-22-41-000-001-A	Removal of the Wall-Mounted Cabin-Attendant Seats
TASK 25-22-43-000-001-A	Removal of the Cabin Attendant Swivel-Seat
TASK 25-23-41-000-001-A	Removal of the Ceiling Panels
TASK 25-23-42-000-002-A	Removal of the Ceiling Panels - Aft Utility Area
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 25-23-45-000-004-A	Removal of the Door Frame Linings from the Right Aft Passenger/Crew Door
TASK 25-23-48-000-001-A	Removal of the Cove Light Panel
TASK 25-26-41-000-003-A	Removal of the Aft Curtain Rail
TASK 25-27-44-000-007-A	Removal of the Stowage AFT RH
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 25-55-12-000-001-A	Removal of the Aft Cargo-Compartment Partition at FR65
TASK 25-55-12-000-003-A	Removal of the Sidewall Panels in the Aft Cargo Compartment - FR59/FR65
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
Pelmets ** ON A/C NOT FOR ALL
Electrical Connections ** ON A/C NOT FOR ALL
Electrical Connections ** ON A/C NOT FOR ALL
Air Connections ** ON A/C NOT FOR ALL
Water Connections ** ON A/C NOT FOR ALL
Water Connections ** ON A/C NOT FOR ALL
Upper Attachment(s) ** ON A/C NOT FOR ALL
Lower Attachments ** ON A/C NOT FOR ALL
Lower Attachments ** ON A/C NOT FOR ALL
Lower Attachments ** ON A/C NOT FOR ALL
Lower Attachments ** ON A/C NOT FOR ALL
Disassembly/Assembly of the Lavatory ** ON A/C NOT FOR ALL
Floor Pan Assembly ** ON A/C NOT FOR ALL
Floor Pan Assembly ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 25-43-42-861-050-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 25-43-42-680-050-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 potable water system.

Subtask 25-43-42-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/SDCU/CHAN1	11WQ	C06
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H07
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU A NORM/R AFT	168RH	M14
121VU	COM NAV/CIDS/DEU A NORM/L AFT	167RH	M13
** 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/SDCU/CHAN2	12WQ	T18
** 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	LAVATORY AFT-OCCUPIED	11WJ	B04
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-E	9MB	B03
** ON A/C NOT FOR ALL
2001VU	LAV SHAVER SOCKET	1MT	B01
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-E/L	9MB	B03
** ON A/C NOT FOR ALL
2001VU	LAV AFT-HOT WATER-L	9MB	C04

Subtask 25-43-42-010-073-B ** ON A/C NOT FOR ALL

D. Get Access
(1) Remove the wall-mounted Cabin Attendant Seat (CAS) (Ref. AMM TASK 25-22-41-000-001).
(2) Remove the cabin attendant swivel-seat (Ref. AMM TASK 25-22-43-000-001).
(3) Remove the curtain(s) and the curtain rail(s) (Ref. AMM TASK 25-26-41-000-003).

Subtask 25-43-42-010-073-AG ** ON A/C NOT FOR ALL

D. Get Access
(1) Remove each wall-mounted Cabin-Attendant Seat (CAS) (Ref. AMM TASK 25-22-41-000-001).
(2) Remove the cabin attendant swivel-seat (Ref. AMM TASK 25-22-43-000-001).
(3) Remove the curtain(s) and the curtain rail(s) (Ref. AMM TASK 25-26-41-000-003).
(4) If necessary, remove the passenger seat(s) adjacent to the lavatory (Ref. AMM TASK 25-21-41-000-001).

Subtask 25-43-42-010-073-AT ** ON A/C NOT FOR ALL

D. Get Access
(1) Remove the cabin attendant swivel-seat (Ref. AMM TASK 25-22-43-000-001).
(2) Remove the curtain(s) and the curtain rail(s) (Ref. AMM TASK 25-26-41-000-003).
(3) Remove the stowage forward of the lavatory E (Ref. AMM TASK 25-27-44-000-007).

Subtask 25-43-42-010-073-AU ** ON A/C NOT FOR ALL

D. Get Access
(1) Remove the wall-mounted cabin-attendant seat (Ref. AMM TASK 25-22-41-000-001).
(2) Remove the curtain(s) and the curtain rail(s) (Ref. AMM TASK 25-26-41-000-003).
(3) Remove the passenger seat adjacent to the lavatory (Ref. AMM TASK 25-21-41-000-001).
(4) Remove the doghouse (Ref. AMM TASK 25-27-46-000-001).

Subtask 25-43-42-010-074-A ** ON A/C NOT FOR ALL

E. Get Access
(1) Remove ceiling panel 262BC and the trim panel in the aft utility area (Ref. AMM TASK 25-23-42-000-002).
(2) Remove ceiling panel 251JC (Ref. AMM TASK 25-23-41-000-001).
(3) Remove cove light panel 252CX (Ref. AMM TASK 25-23-48-000-001).
(4) Remove upper sidewall panel 252BX (Ref. AMM TASK 25-23-43-000-001).
(5) Remove lower sidewall panel 252AX (Ref. AMM TASK 25-23-44-000-001).

Subtask 25-43-42-010-074-B ** ON A/C NOT FOR ALL

E. Get Access
(1) Remove the ceiling panel 262BC and the trim panel (Ref. AMM TASK 25-23-42-000-002).
(2) Remove the ceiling panel 251JC (Ref. AMM TASK 25-23-41-000-001).
(3) Remove the upper sidewall panel 252BX (Ref. AMM TASK 25-23-43-000-001).
(4) Remove the lower sidewall panel 252AX (Ref. AMM TASK 25-23-44-000-001).

Subtask 25-43-42-010-074-E ** ON A/C NOT FOR ALL

E. Get Access
(1) Remove the applicable ceiling panel and the trim panel in the aft utility area (Ref. AMM TASK 25-23-42-000-002).
(2) Remove the applicable ceiling panel(s) (Ref. AMM TASK 25-23-41-000-001).
(3) Remove the applicable cove light panel(s) (Ref. AMM TASK 25-23-48-000-001).
(4) Remove the applicable upper sidewall panel(s) (Ref. AMM TASK 25-23-43-000-001).
(5) Remove the applicable lower sidewall panel(s) (Ref. AMM TASK 25-23-44-000-001).

Subtask 25-43-42-010-075-B ** ON A/C NOT FOR ALL

F. Get Access
(1) Remove door frame lining-panels 262VW 262UW and 262TW (Ref. AMM TASK 25-23-45-000-004).
(2) Make sure that the potable water system is drained (Ref. AMM TASK 12-24-38-680-001).
(3) Remove the toilet drain line behind the lavatory (Ref. AMM TASK 38-30-00-010-002).

Subtask 25-43-42-010-075-E ** ON A/C NOT FOR ALL

F. Get Access
(1) Remove the door frame lining-panels (Ref. AMM TASK 25-23-45-000-004).
(2) Remove the toilet drain line (Ref. AMM TASK 38-30-00-010-002).

Subtask 25-43-42-010-076-A ** ON A/C NOT FOR ALL

G. Get Access
(1) Remove the lavatory door (Ref. AMM TASK 25-45-19-000-001).
(2) In the lavatory:
(a) Remove emergency oxygen container 34WR (Ref. AMM TASK 35-21-41-000-001).
(b) Remove the toilet assembly (Ref. AMM TASK 38-31-41-000-001).

Subtask 25-43-42-010-077-A ** ON A/C NOT FOR ALL

H. Get Access
(1) In the aft cargo compartment:
(a) Remove partition 162DW (Ref. AMM TASK 25-55-12-000-001).
(b) Remove sidewall panel 162CW (Ref. AMM TASK 25-55-12-000-003).
(2) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001).

Subtask 25-43-42-010-077-I ** ON A/C NOT FOR ALL

H. Get Access
(1) Remove the toilet shroud (Ref. AMM TASK 25-45-22-000-001).

4. Procedure
Subtask 25-43-42-930-050-A ** ON A/C NOT FOR ALL

A. Marking of the Ventilation Connections, the Potable Water Connections and the Waste-Water Drain Connections
(1) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.

Subtask 25-43-42-020-061-A ** ON A/C NOT FOR ALL

B. Removal of the Pelmets

Pelmets ** ON A/C NOT FOR ALL

(1) Remove the screws (2) and the pelmet assembly (1).
(2) Remove the screws (5), the washers (4) and the side pelmet (3).

Subtask 25-43-42-020-061-H ** ON A/C NOT FOR ALL

B. Removal of the Pelmet

Pelmets ** ON A/C NOT FOR ALL

Subtask 25-43-42-020-062-A ** ON A/C NOT FOR ALL

C. Removal of the Electrical Connections

Electrical 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) On the lavatory ceiling, disconnect electrical connector 7216VC-A (16).
(3) Open the sanitary-cabinet access door (3).
(4) Disconnect the electrical connector (4).
(5) Cut and discard the cable ties (12) from the mounts (15).
(6) If necessary, cut and discard the cable ties (13) from the cable assemblies (14) and (7).
(7) Remove the screws (6), washers (8) and bracket (5).
(8) Disconnect the cable assembly (9) from the flush switch (2).
(9) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(10) If necessary, remove the cable assembly (9) as follows:
(a) If necessary, cut and discard the cable ties (10) from the mounts (11).
(b) Temporarily attach the cable assembly (9) to the top of the lavatory ceiling panel (1).
(11) Close the sanitary-cabinet access door (3).

Subtask 25-43-42-020-063-A ** ON A/C NOT FOR ALL

D. Removal of the Air Connections

Air Connections ** ON A/C NOT FOR ALL

(1) Disconnect the air-extraction hose as follows:
(a) Loosen the clamp (2) and disconnect the sleeve (1) from the tube assembly (5).
(b) If the clamp (3) is installed, loosen it and disconnect the tube (4) from the tube assembly (5).
(c) Remove the clamps (2) and (3).
(d) Put the PLUG-BLANKING in each disconnected line end.
(2) Disconnect the ventilation hoses (13) and (16) as follows:
(a) Loosen the clamp (15) behind the lavatory and disconnect the lavatory ventilation hose (16) from the tube assembly (14).
(b) Remove the screws (11), washers (12), clamps (6) and spacers (7) and (8).
(c) Loosen the clamp (10) and disconnect the ventilation hose (13) from the ventilation tube (9).
(d) Remove the clamps (10) and (15).
(e) Put the PLUG-BLANKING in each disconnected line end.

Subtask 25-43-42-020-064-C ** ON A/C NOT FOR ALL

E. Removal 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).

(1) Open the sanitary-cabinet access door (1).
(2) Put the CONTAINER 1 L (1/4 USGAL) in position below the water connections that you will disconnect.
(3) Disconnect the bonding straps (4) as follows:
(a) Remove the nut (5) and the washer (6) and disconnect the bonding straps (4).
(4) Disconnect the potable water connections as follows:
(a) Loosen the nut (2) and disconnect the potable water tube (3) from the fitting (7).
(b) Loosen the nuts (2) and remove the potable water hose (8) from the fittings (7).
(c) Put the PLUG-BLANKING in each disconnected line end.
(5) Disconnect the waste-water drain connection as follows:
(a) Loosen the clamp (9) and disconnect the drain tube (10).
(b) Remove the clamp (9).
(c) Put the PLUG-BLANKING in each disconnected line end.

Subtask 25-43-42-020-064-F ** ON A/C NOT FOR ALL

E. Removal of the Water Connections

Water Connections ** ON A/C NOT FOR ALL

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 .
(2) If necessary, push up the insulation (3).
(3) Put a CONTAINER 1 L (1/4 USGAL) in position below the water connections that you will disconnect.
(4) Disconnect the potable water connections:
(a) Remove the nut (5), the washer (6) and disconnect the bonding straps (4).
(b) Loosen the nut (1) and disconnect the potable water tube (2) from the fitting (7).
(c) Loosen the nuts (1) and remove the potable water hose (8).
(d) Put the PLUG-BLANKING in each disconnected line end.
(5) 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) Put the PLUG-BLANKING in each disconnected line end.

Subtask 25-43-42-020-065-A ** ON A/C NOT FOR ALL

F. Removal of the Upper Attachment(s)

Upper Attachment(s) ** 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 quick-release pin (1) and disconnect the tie-rod (2) from the aircraft structure.
(3) If installed, remove the quick-release pin (3) and disconnect the tie-rod (4) from the aircraft structure.

Subtask 25-43-42-020-066-A ** ON A/C NOT FOR ALL

G. Removal of the Lower Attachments

Lower Attachments ** ON A/C NOT FOR ALL

(1) Remove the wall fitting covers (4).
(2) Remove the bolts (2).
(3) Remove and discard the packings (3).

Subtask 25-43-42-020-066-I ** ON A/C NOT FOR ALL

G. Removal of the Lower Attachments

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 screws (8) and the cover plate (9).
(4) Remove the screws (10) and the cover (11).
(5) Remove the protection wax with SCRAPER - NON METALLIC.
(6) Remove the bolts (2) and the eccentric bushes (3) and (4).
(7) Carefully lift and move the lavatory assembly (1) to the aft utility area.
(8) Remove and discard the packings (6).
(9) Remove the bushes (7).
(10) Remove the tape adhesives at the installation point of the bushes (7).

Subtask 25-43-42-020-066-L ** ON A/C NOT FOR ALL

G. Removal of the Lower Attachments

Lower Attachments ** ON A/C NOT FOR ALL

(1) Remove the covers (4).
(2) Remove the bolts (1) and the eccentric bushes (2) and (3).
(3) Lift and move the lavatory assembly to the aft utility area.
(4) Remove and discard the packings (5).
(5) Remove the bushes (6).

Subtask 25-43-42-020-067-B ** ON A/C NOT FOR ALL

H. Disassembly of the Lavatory

Disassembly/Assembly of the Lavatory ** 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 sealant from around the floor pan assembly (1) with the SCRAPER - NON METALLIC.
(3) Remove the screws (2) and the washers (3).
(4) Remove the screws (5) and the washers (4).
(5) Lift and remove the lavatory assemblies (11) and (12) from the floor pan assembly (1).
(6) Remove the screws (7), (9) and (16), washers (8) and (15) and ceiling panel (6).
(7) Remove the screw (10).
(8) Remove the screws (13) and the washers (14).
(9) Remove the lavatory assemblies (11) and (12) from the aircraft structure.

Subtask 25-43-42-020-068-B ** ON A/C NOT FOR ALL

I. Removal of the Floor Pan Assembly

Floor Pan Assembly ** 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) If installed, remove the screws (16) from the floor angle brackets (17).
(3) If installed, remove the rubber strips (18), (19) and (21) from the floor panel (20).
(4) Remove the screws (5) and the door sill (6).
(5) Remove the screws (12), the washers (11) and the front-shroud panel assembly (10).
(6) Remove the screws (7) and the washers (8) from the floor pan (9).
(7) Remove the floor pan assembly (9).
(8) Remove the screws (3), washers (2) and rear partition panel (1).
(9) Remove the rubber strip (4).
(10) Remove the screws (15) and the washers (14) from the floor panel (13).
(11) Remove the tape Adhesive Film Tape-- Aluminium Foil - Sound damping - (Material No.05RAC1) from the floor panel joints.
(12) Pull up and remove the cord 14RAD1Cord-- Synthetic fiber Dia: 2.5 mm - and the sealant at each joint.
(13) Remove the screws (22) and the floor panel (13).
(14) Put the SAFETY BARRIER(S) in position.

Subtask 25-43-42-020-068-D ** ON A/C NOT FOR ALL

I. Removal of the Floor Pan Assembly

Floor Pan Assembly ** 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 screws (4) and the floor angle brackets (5) from the floor panel (7).
(3) Remove the rubber strips (6), (8) and (9) from the floor panel (7).
(4) Remove the sealant from around the door sill (2) with the SCRAPER - NON METALLIC.
(5) Remove the screws (3), door sill (2) and the floor pan assembly (1).
(6) Put the SAFETY BARRIER(S) in position.

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