Removal of the Passenger Seats

TASK 25-21-41-000-001-A
Removal of the Passenger Seats

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

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ALLEN KEY 3/16 IN
No specific	AR	CAP - BLANKING
No specific	AR	PIN DIA 3 MM (0,118 IN)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)
No specific	3	WRENCH - GROOVE NUT
No specific	1	WRENCH 5/16 IN - SOCKET

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05RDA1)	Adhesive Film Tape-Masking - -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

D. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 25-28-41-000-001-A	Removal of the Textile Floor Covering
Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL
Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL
Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL
Passenger Seats - Electrical Connections (WL) ** ON A/C NOT FOR ALL
Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats B/C ** ON A/C NOT FOR ALL
Passenger Seats - Business Class ** ON A/C NOT FOR ALL
Passenger Seat ** ON A/C NOT FOR ALL
Passenger Seats - Tourist Class ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL
Passenger Seats ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 25-21-41-860-050-A

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

Subtask 25-21-41-860-052-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that:

In the cockpit, on the overhead panel 25VU (SIGNS), the EMER EXIT LT switch is set to the OFF position.
On the FAP 120RH, the LIGHT EMER pushbutton switch is set to the OFF position.

(2) Put a WARNING NOTICE(S) in position to tell persons not to operate the EMER EXIT LT switch.

Subtask 25-21-41-865-103-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H06
49VU	LIGHTING/EMER LT/CABIN	1WL	H05
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H04
49VU	LIGHTING/EMER LT/CABIN	1WL	H03
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	6LW	G06
2000VU	PASSENGER READING LIGHT	5LW	G05
2000VU	PASSENGER READING LIGHT	4LW	G04
2000VU	PASSENGER READING LIGHT	1LW	G01
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	2LW	G02
** ON A/C NOT FOR ALL
2000VU	PASSENGER READING LIGHT	3LW	G03
** ON A/C NOT FOR ALL
2000VU	IFE-IFEC-AC	22MK	C04
** ON A/C NOT FOR ALL
2000VU	IFE-VCC-AC	21MH	C02
2000VU	IFE-VCC-DC	20MH	C01
2000VU	IFE/SEAT-POWER-PAX SYS	20MK	D08
** ON A/C NOT FOR ALL
2000VU	INSEAT POWER-MCU 2	59HP	B08
2000VU	INSEAT POWER-MCU 1	58HP	B05
** ON A/C NOT FOR ALL
2000VU	IFE-IFEC-AC	22MK	C06
** ON A/C NOT FOR ALL
2000VU	PES-VIDEO-CONTROL-VCC	21MH	C02
** ON A/C NOT FOR ALL
2000VU	PES-VIDEO-CONTROL-MAIN	20MH	C01
** ON A/C NOT FOR ALL
2000VU	SEAT POWER-MCU 2	59HP	B08
2000VU	SEAT POWER-MCU 1	58HP	B05
** ON A/C NOT FOR ALL
2000VU	PASSENGER/READING/LIGHT	2LW	G02
** ON A/C NOT FOR ALL
2000VU	PES-MUSIC - CTL	21MK	D01
** ON A/C NOT FOR ALL
2000VU	PES-VIDEO-CONTROL-VCC-DS/C	21MH	C02
2000VU	PES-MUSIC-CABIN AFT-RH	25MK	D05
2000VU	PES-MUSIC-CABIN AFT-LH	22MK	D04
2000VU	PES-MUSIC-CABIN FWD-RH	24MK	D03
2000VU	PES-MUSIC-CABIN FWD-LH	23MK	D02
** ON A/C NOT FOR ALL
2000VU	PES-MUSIC-CTL	21MK	D01

4. Procedure
Subtask 25-21-41-010-055-A ** ON A/C NOT FOR ALL

A. Get Access

Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL

(1) Make sure that:

The folding tables are in the folded position
The seat backrests are in the vertical position
If folding legrests are installed, they are in the extended position.

(2) If there is an In-Seat Power-Supply System (ISPS) installed, disconnect the electrical connectors:
(a) Release the fasteners (7) and open or remove the cover (8).
(b) Disconnection of the electrical connectors:
1 Disconnect the electrical connectors (13) and (14).
2 Cut and discard the cable ties and remove the electrical cables from the seat structure.
3 Put a CAP - BLANKING on the disconnected electrical connectors.
(3) If there is a Passenger Entertainment System installed, disconnect the electrical connectors:
(a) Release the fasteners (7) and open or remove the cover (8).
(b) Disconnection of the electrical connectors:
1 Release the spring latches (10) and disconnect the electrical connectors (11), (12).
2 Cut and discard the cable ties and remove the electrical cables from the seat structure.
3 Put a CAP - BLANKING on the disconnected electrical connectors.
(4) If there is an Emergency Escape-Path Marking-System (EEMPS) installed, disconnect the electrical connectors:
(a) Remove the applicable seat-track covers (5) from the seat tracks.
(b) Push the quick-release studs (3) and remove the protection cap (4).
(c) If necessary, remove the related carpet (6) (Ref. AMM TASK 25-28-41-000-001).
(d) Disconnection of the electrical connectors:
1 Disconnect the electrical connectors (1).
2 Put a CAP - BLANKING on the disconnected electrical connectors.
3 Remove the electrical cables (2) and attach it to the seat structure with Adhesive Film Tape-Masking - - (Material No.05RDA1) .

Subtask 25-21-41-010-055-H ** ON A/C NOT FOR ALL

A. Get Access

Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL

(1) Make sure that:

The folding tables are in the folded position.
The seat backrests are in the vertical position.

(2) Release the fasteners (2) and remove the cover (1).
(3) Disconnection of the Electrical Connectors:
(a) Release the spring latches (4).
(b) Disconnect the electrical connectors (3).
(c) Put a CAP - BLANKING on each disconnected electrical connector.

Subtask 25-21-41-010-055-A0 ** ON A/C NOT FOR ALL

A. Get Access
(1) Make sure that:

The folding tables are in the folded position
The seat backrests are in the vertical position.

(2) Disconnect the electrical connectors:

Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL

(a) Release the fasteners (2) and remove the covers (1).
(b) Disconnect the electrical connectors (3).
(c) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

Subtask 25-21-41-010-055-AG ** ON A/C NOT FOR ALL

A. Get Access
(1) Make sure that:

The folding tables are in the folded position
The seat backrests are in the vertical position.

(2) Disconnection of the Emergency Escape-Path Marking-System (EEMPS), if installed:

Passenger Seats - Electrical Connections (WL) ** ON A/C NOT FOR ALL

(a) Release the fasteners (2) and remove the cover (1).
(b) Disconnect the electrical connector (3) and release the cable (4).
(c) Put a CAP - BLANKING on the disconnected electrical connectors.

Subtask 25-21-41-010-055-CC ** ON A/C NOT FOR ALL

A. Get Access

Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL

(1) Make sure that:

The folding tables are in the folded position
The seat backrests are in the vertical position.

(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) Release the fasteners (2) and remove the covers (1).
(a) Cut and discard the cable ties (6), if necessary.
(b) Disconnect the electrical connectors (5) from the brackets.
(c) Release the cables (3) from the clamps (7), if installed.
(d) Put a CAP - BLANKING on each disconnected electrical connector.
(4) Carefully move the cables (3) out of the seats.

Subtask 25-21-41-010-055-CS ** ON A/C NOT FOR ALL

A. Get Access
(1) Make sure that:

The folding tables are in the folded position
The seat backrests are in the vertical position.

Subtask 25-21-41-010-055-SS ** ON A/C NOT FOR ALL

A. Get Access

Passenger Seats - Electrical Connections ** ON A/C NOT FOR ALL

(1) Make sure that the folding tables are in the folded position.
(2) Make sure that the seat backrests are in the vertical position.
(3) Make match marks on the components that you disconnect/remove to record their connections/positions. This is important for the subsequent installation procedure.
(4) On the Business Class (B/C) seat:
(a) Remove the screw (13), the washer (12) and the cover (11).
(b) Release the fasteners (7) and (10) and remove the covers (6) and (9).
(5) On the tourist class seat, release the fasteners (2) and (5) and remove the covers (1) and (4).
(6) Disconnect the electrical connectors as follows:
(a) Open the clamps (15).
(b) Disconnect the electrical connector (16) from the bracket.
(c) Disconnect the electrical connectors (14) from the In-Seat Power Supply Unit (ISPSU).
(d) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(e) Carefully move the cables (8) away from the seats.

Subtask 25-21-41-020-059-F ** ON A/C NOT FOR ALL

B. Removal of the Passenger Seats in the Business Class Area

Passenger Seats ** ON A/C NOT FOR ALL

Passenger Seats B/C ** ON A/C NOT FOR ALL

(1) Remove the applicable seat track covers (4) from the seat tracks.
(2) Make match marks on the seat tracks to show the position of the seat unit (1).
(3) Loosen the anti-rattle nuts (3) with a WRENCH - GROOVE NUT.
(4) Loosen the screws (5) to release the track locks (6).
(5) Move the seat unit (1) forward or rearward to release the front studs (2) and the track fittings (7) from the seat tracks.
(6) Lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-059-Q ** ON A/C NOT FOR ALL

B. Removal of the Passenger Seats in the Business Class Area

Passenger Seats - Business Class ** ON A/C NOT FOR ALL

(1) Remove the applicable seat track covers (4) from the seat tracks.
(2) Make match marks on the seat tracks to show the position of the seat unit (1).
(3) Loosen the anti-rattle screws (2).
(4) Loosen the screws (7).
(5) Lift and turn the shear pins (6) to release the track locks (8) from the seat tracks.
(6) Move the seat unit (1) forward or rearward to release the front studs (3) and the track fittings (5) from the seat tracks.
(7) Lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-059-RT ** ON A/C NOT FOR ALL

B. Removal of the Passenger Seat in the B/C Area

Passenger Seat ** 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 applicable seat track covers (3) from the seat tracks.
(3) Put the PIN DIA 3 MM (0,118 IN) through the access holes and push the levers (2) to the unlocked position.
(4) Use the ALLEN KEY 3/16 IN and turn the screws (5) one and a half turn counterclockwise.
(5) Turn the locking plates (8) counterclockwise and pull the track locks (6) up.
(6) Engage the noses of the locking plates (8) in the notches of the track locks (6).
(7) Move the seat unit (1) forward or rearward to release the front studs (4) and the track fittings (7) from the seat tracks.
(8) Carefully lift the seat unit (1) from the seat tracks and remove the seat unit (1).

Subtask 25-21-41-020-064-D ** ON A/C NOT FOR ALL

C. Removal of the Passenger Seats in the Business and Tourist Class Areas

Passenger Seats - Tourist Class ** ON A/C NOT FOR ALL

(1) Remove the applicable seat track covers (4) from the seat tracks.
(2) Make match marks on the seat tracks to show the position of the seat unit (1).
(3) Loosen the anti-rattle nuts (2) with a WRENCH - GROOVE NUT.
(4) Loosen the screws (5) to release the track locks (7) from the seat tracks.
(5) Move the seat unit (1) forward or rearward to release the front studs (3) and the track fittings (6) from the seat tracks.
(6) Lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-064-G ** ON A/C NOT FOR ALL

C. Removal of the Passenger Seats

Passenger Seats ** 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 applicable seat track covers (3) from the seat tracks.
(3) Use a PIN DIA 3 MM (0,118 IN) to push the lever (2) through the access hole to the unlocked position.
(4) Loosen the screws (5) with an ALLEN KEY 3/16 IN to release the track locks (6).
(5) Turn the locking plates (8) counterclockwise to the unlocked position.
(6) Engage the noses of the locking plates (8) in the notches of the track locks (6).
(7) Move the seat unit (1) forward or rearward to release the front studs (4) and the track fittings (7).
(8) Carefully lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-064-I ** ON A/C NOT FOR ALL

C. Removal of the Passenger Seats in the Business and Tourist Class Areas

Passenger Seats ** ON A/C NOT FOR ALL

(1) Remove the applicable seat track covers (4) from the seat tracks.
(2) Make match marks on the seat tracks to show the position of the seat unit (1).
(3) Loosen the anti-rattle nuts (2) clockwise with a WRENCH - GROOVE NUT.
(4) Release the spring-clips (5) from the track locks (6).
(5) Loosen the screws (7) to release the track locks (6) from the seat tracks.
(6) Move the seat unit (1) forward or rearward to release the front studs (3) and the track fittings (8) from the seat tracks.
(7) Carefully lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-052-AO ** ON A/C NOT FOR ALL

D. Removal of the Passenger Seats in the Tourist Class Area

Passenger Seats ** 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 applicable seat-track covers (3) from the seat tracks.
(3) Use a PIN DIA 3 MM (0,118 IN) to push the levers (2) through the access holes to the unlocked position.
(4) Release the locking plates (5) from the track locks (6).
(5) Loosen the screws (8) to release the track locks (6) from the seat tracks.
(6) Move the seat unit (1) forward or rearward to release the front studs (4) and the track fittings (7) from the seat tracks.
(7) Carefully lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-052-AT ** ON A/C NOT FOR ALL

D. Removal of the Passenger Seats in the Tourist Class Area

Passenger Seats - Tourist Class ** 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 applicable seat track covers (4) from the seat tracks.
(3) Loosen the anti-rattle nuts (2) with a WRENCH - GROOVE NUT.
(4) Loosen the screws (5) to release the track locks (7) from the seat tracks.
(5) Move the seat unit (1) forward or rearward to release the front studs (3) and the track fittings (6) from the seat tracks.
(6) Carefully lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-052-G ** ON A/C NOT FOR ALL

D. Removal of the Passenger Seats in the Tourist Class Area

Passenger Seats ** 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 applicable seat track covers (6) from the seat tracks.
(3) Loosen the front stud screws (8).
(4) Loosen the screws (3) to release the safety caps (2).
(5) Disengage the safety caps (2) and turn them one quarter turn clockwise.
(6) Pull the track locks (4) rearward and up to release them from the seat tracks.
(7) Move the seat unit (1) forward or rearward to release the front studs (7) and the track fittings (5) from the seat tracks.
(8) Carefully lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-052-Q ** ON A/C NOT FOR ALL

D. Removal of the Passenger Seats from the Tourist Class Area

Passenger Seats ** 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 applicable seat track covers (4) from the seat tracks.
(3) With a WRENCH 5/16 IN - SOCKET, turn the eccentric cams (2) counterclockwise to the unlocked position.
(4) Release the spring clips (8) from the track locks (7).
(5) Loosen the screws (6) and release the track locks (7) from the seat tracks.
(6) Move the seat unit (1) forward or rearward and release the front studs (3) and the track fittings (5) from the seat tracks.
(7) Carefully lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-052-S ** ON A/C NOT FOR ALL

D. Removal of the Passenger Seats in the Tourist Class Area

Passenger Seats ** ON A/C NOT FOR ALL

(1) Remove the applicable seat track covers (4) from the seat tracks.
(2) Make match marks on the seat tracks to show the position of the seat unit (1).
(3) Loosen the anti-rattle nuts (2).
(4) Loosen the screws (7).
(5) Lift and turn the shear pins (6) to release the track locks (8) from the seat tracks.
(6) Move the seat unit (1) forward or rearward to release the front studs (3) and the track fittings (5) from the seat tracks.
(7) Lift the seat unit (1) from the seat tracks and remove it.

Subtask 25-21-41-020-052-AK ** ON A/C NOT FOR ALL

D. Removal of the Passenger Seats

Passenger Seats ** ON A/C NOT FOR ALL

(1) Remove the applicable seat-track covers (3) from the seat tracks.
(2) Make match marks on the seat tracks to show the position of the seat unit (1).
(3) Loosen the anti-rattle nuts (4) with a WRENCH - GROOVE NUT.
(4) Loosen the screws (5) to release the track-locks (7).
(5) Move the seat unit (1) forward or rearward to release the front studs (2) and the track fittings (6) from the seat tracks.
(6) Carefully lift the seat unit (1) from the seat tracks and remove it.

[Rev.10 from 2021] 2026.03.31 23:30:30 UTC