Removal of the Seat Power Box/Unit / Overhead Distribution Box

TASK 23-36-23-000-802-A
Removal of the Seat Power Box/Unit / Overhead Distribution Box

ZONE: 220
ZONE: 230
FIN: 36MH ** ON A/C NOT FOR ALL

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	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	STEPLADDER 1.0 M (3.3 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
220	FWD CAB UTILITY AREAS
230	FWD PASSENGER COMPARTMENT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 23-36-31-000-801-A	Removal of the Modem Processor Unit / Remote Modem Unit (RMU)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
Seat Power Unit (SPU)

3. Job Set-up
Subtask 23-36-23-861-051-A ** ON A/C NOT FOR ALL

A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 23-36-23-010-051-F ** ON A/C NOT FOR ALL

B. Get Access

Seat Power Unit (SPU) ** ON A/C NOT FOR ALL

(1) Put a STEPLADDER 1.0 M (3.3 FT) below the left Overhead Stowage Compartment (OHSC) between frames FR20 and FR21.
(2) Open the access doors of the overhead stowage compartment and the Video Control Center (VCC) (1).
(3) Remove the closeout panel (2):
(a) Release the fasteners (3) and hold the closeout panel (2).
(b) Remove the nut (6), washers (5), screw (7) and bonding strap (4).
(c) Safety the bonding strap (4) in the VCC (1).
(d) Remove the closeout panel (2).
(4) If necessary, remove the Remote Modem Unit (99MH) (Ref. AMM TASK 23-36-31-000-801).

Subtask 23-36-23-865-059-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
2000VU	IFE-VCC-AC	21MH	C02
2000VU	IFE-VCC-DC	20MH	C01
2000VU	WAP	27MH	D07

4. Procedure
Subtask 23-36-23-020-051-E ** ON A/C NOT FOR ALL

A. Removal of the Seat Power Unit (SPU)

Seat Power Unit (SPU) ** ON A/C NOT FOR ALL

WARNING: DO NOT TOUCH THE COMPONENT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS.

CAUTION: TO PREVENT POSSIBLE CROSS-CONNECTION OF THE ELECTRICAL CONNECTORS, MAKE SURE THAT PLUGS AND RECEPTACLES ARE CLEARLY IDENTIFIED.

(1) Put the identification marks on the electrical connectors (9), (10) and the receptacles (12), (13) before you disconnect them. This is important for the subsequent installation procedure.
(2) Disconnect the electrical connectors (9) and (10) from the receptacles (12) and (13).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Release the fasteners (8) and carefully remove the SPU (11) from the VCC (1).

[Rev.10 from 2021] 2026.04.01 05:25:51 UTC