Cleaning of the Air Inlet Grids of Galleys and Lavatories

TASK 12-21-12-100-803-A
Cleaning of the Air Inlet Grids of Galleys and Lavatories

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

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08ACA1)	Aqueous Cleaner-Aircraft Interior - -
(Material No.14SBA1)	Textile-Lint free Cotton -
No specific	clean warm water
No specific	sponge

B. Referenced Information

REFERENCE	DESIGNATION
TASK 21-23-00-600-001-A	Discard Lavatory Air Extraction Filter Element
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 25-30-00-920-001-A	Remove and Discard Filter Element
TASK 25-35-19-000-001-A	Removal of the Oven(s)
TASK 25-35-19-000-003-A	Removal of the Steam Oven(s)
TASK 25-35-19-400-001-A	Installation of the Oven(s)
TASK 25-35-19-400-003-A	Installation of the Steam Oven(s)

3. Job Set-up
Subtask 12-21-12-861-064-A

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(2) In the cockpit, on overhead ELEC panel 35VU, make sure that the GALLEY pushbutton switch is released (the OFF legend is on).
(3) On the galley control panel, open, safety and tag all the circuit breaker(s).

4. Procedure
Subtask 12-21-12-160-083-A

A. Cleaning of the Ventilation Grids in the Galleys that have Ovens Installed
(1) If necessary, remove the oven(s) (Ref. AMM TASK 25-35-19-000-001).
(2) If necessary, remove the steam oven(s) (Ref. AMM TASK 25-35-19-000-003).
(3) If necessary, remove the microwave(s) (Ref. AMM D/O 25-35-19-00).
(4) Apply Aqueous Cleaner-Aircraft Interior - - (Material No.08ACA1) to the grids.
(5) Clean the grids with a sponge and clean warm water and a Textile-Lint free Cotton - (Material No.14SBA1) .
(6) Do an inspection of the component interfaces and the adjacent area.
(7) If necessary, replace the air filter pads (Ref. AMM TASK 25-30-00-920-001).
(8) Install the oven(s), if removed (Ref. AMM TASK 25-35-19-400-001).
(9) Install the steam oven(s), if removed (Ref. AMM TASK 25-35-19-400-003).
(10) Install the microwave(s), if removed (Ref. AMM D/O 25-35-19-40).

Subtask 12-21-12-160-084-A

B. Cleaning of the Ventilation Grids in the Lavatories
(1) Apply Aqueous Cleaner-Aircraft Interior - - (Material No.08ACA1) to the grids.
(2) Clean the grids with a sponge and clean warm water and a Textile-Lint free Cotton - (Material No.14SBA1) .
(3) Do an inspection of the component interfaces and the adjacent area.
(4) If necessary, replace the air filter pads (Ref. AMM TASK 21-23-00-600-001).

Subtask 12-21-12-160-085-A

C. Cleaning of the Ventilation Grids in the Galleys that have Refrigerators Installed
(1) If necessary, remove the refrigerator(s) (Ref. AMM D/O 25-35-29-00).
(2) Apply Aqueous Cleaner-Aircraft Interior - - (Material No.08ACA1) to the grids.
(3) Clean the grids with a sponge and clean warm water and a Textile-Lint free Cotton - (Material No.14SBA1) .
(4) Do an inspection of the component interfaces and the adjacent area.
(5) If necessary, replace the air filter pads (Ref. AMM TASK 25-30-00-920-001).
(6) Install the refrigerator(s), if removed (Ref. AMM D/O 25-35-29-40).

5. Close-up
Subtask 12-21-12-862-065-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) On the galley control panel, remove the safety clips and tags and close all the circuit breakers.
(3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.02 06:10:25 UTC