Detailed Inspection of Upper and Lower Lavatory Attachment Points

TASK 25-40-00-210-002-A
Detailed Inspection of Upper and Lower Lavatory Attachment Points

ZONE: 200

1. Reason for the Job
Refer to the MPD TASK: 254000-02
DETAILED INSPECTION OF UPPER AND LOWER LAVATORY ATTACHMENT POINTS.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	LIGHT SOURCE - INSPECTION
No specific	1	MIRROR - INSPECTION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE
221AC, 221EW, 261BC, 261CC

C. Referenced Information

REFERENCE	DESIGNATION
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 25-23-42-000-001-A	Removal of the Ceiling Panels - Forward Utility Area
TASK 25-23-42-000-002-A	Removal of the Ceiling Panels - Aft Utility Area
TASK 25-23-42-400-001-A	Installation of the Ceiling Panels - Forward Utility Area
TASK 25-23-42-400-002-A	Installation of the Ceiling Panels - Aft Utility Area
TASK 25-23-45-000-005-A	Removal of the Door Frame Linings from the Left Forward Passenger/Crew Door
TASK 25-23-45-400-006-A	Installation of the Door Frame Linings on the Left Forward Passenger/Crew Door
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 51-76-11-300-001-A	Repair of the Sealing
Lavatory Attachment Points

3. Job Set-up
Subtask 25-40-00-861-054-A

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

Subtask 25-40-00-010-052-A

B. Get Access
(1) For the FWD lavatory.
(a) Remove the ceiling panel 221AC in the forward utility area (Ref. AMM TASK 25-23-42-000-001).
(b) Remove the door-frame lining panel 221EW (Ref. AMM TASK 25-23-45-000-005).
(c) Open the oxygen service panel in the lavatory (Ref. AMM TASK 35-21-41-000-001).
(d) Open the flap of the stowage of the cabin attendant seat (CAS).
(e) Remove the emergency equipment from the stowage of the CAS as necessary.
(f) Remove the cover from the wall fitting on the lavatory passage wall.

Subtask 25-40-00-010-054-A ** ON A/C NOT FOR ALL

C. For the MID lavatory.
(1) Remove the covers from the lower attachment points.
(2) Remove the access flap on the lavatory rearwall.

Subtask 25-40-00-010-053-A

D. Get Access
(1) For the AFT lavatories.
(a) Open the flap of the stowage of the cabin attendant seat (CAS).
(b) Remove the emergency equipment from the stowage of the CAS as necessary.
(c) Remove the ceiling panels 261CC 261BC in the aft utility area (Ref. AMM TASK 25-23-42-000-002).
(d) Remove the covers from the lower attachment points as necessary.

4. Procedure
Subtask 25-40-00-210-051-A

A. Detailed Inspection of Upper and Lower Lavatory Attachment Points

Lavatory Attachment Points

NOTE: You will need a MIRROR - INSPECTION and a LIGHT SOURCE - INSPECTION for the inspection procedure.

(1) Visually examine the upper attachment points and the brace assemblies for:

correct installation,
corrosion,
cracks,
contamination,
installation of the quick release pins,
safety of the locknuts.

(2) Visually examine the lower attachment points for:

cracks,
corrosion,
correct installation,
contamination.

(3) Make sure that the sealing is in good condition.
(a) If necessary do a repair of the sealing (Ref. AMM TASK 51-76-11-300-001).

5. Close-up
Subtask 25-40-00-410-051-A

A. Close Access
(1) For the FWD lavatory.
(a) Install the cover on the wall fitting on the lavatory passage wall.
(b) Install the emergency equipment in the stowage of the cabin attendant seat (CAS).
(c) Make sure that the work area is clean and clear of tools and other items.
(d) Close the flap of the CAS stowage.
(e) Close the oxygen service panel in the lavatory (Ref. AMM TASK 35-21-41-400-001).
(f) Install the door-frame lining panel 221EW (Ref. AMM TASK 25-23-45-400-006).
(2) Install the ceiling panel 221AC (Ref. AMM TASK 25-23-42-400-001).

Subtask 25-40-00-410-054-A ** ON A/C NOT FOR ALL

B. Close Access
(1) For the MID lavatory.
(a) Install the access flap on the lavatory rearwall.
(b) Install the covers on the lower attachment points.

Subtask 25-40-00-410-052-A

C. Close Access
(1) For the AFT lavatories.
(a) Install the ceiling panels 261CC 261BC (Ref. AMM TASK 25-23-42-400-002).
(b) Install the emergency equipment in the stowage of the cabin attendant seat (CAS).
(c) Make sure that the work area is clean and clear of tools and other items.
(d) Close the flap of the CAS stowage.
(e) Install the covers on the lower attachment points.

Subtask 25-40-00-862-055-A

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

[Rev.10 from 2021] 2026.03.31 23:34:55 UTC