W DOC AIRBUS | AMM A320F

Installation of the USB Power-Outlet Unit(s)

TASK 25-21-37-400-802-A
Installation of the USB Power-Outlet Unit(s)

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
Torque wrench: range to between 5 and 3 lbf.in (0.06 and 0.03 m.daN ) T
No specific
Torque wrench: range to between 0.0055 and 0.0045 m.daN (0.49 and 0.40 lbf.in ) T
No specific
Torque wrench: range to between 0.0176 and 0.0144 m.daN (1.56 and 1.27 lbf.in ) T
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
200
UPPER HALF FUSELAGE
 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 25-21-00-710-002-A
Operational Test of the In-Seat Power-Supply System (PED Power Supply)
F USB Power-Outlet Unit ** ON A/C NOT FOR ALL
F USB Power-Outlet Unit ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 25-21-37-860-051-A ** ON A/C NOT FOR ALL
A. Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
Subtask 25-21-37-865-058-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2000VUINSEAT POWER-MCU 259HPB08
2000VUINSEAT POWER-MCU 158HPB05
4. Procedure
Subtask 25-21-37-210-051-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
   (1) Clean the component interfaces and the adjacent area.
   (2) Do an inspection of the component interfaces and the adjacent area.
Subtask 25-21-37-420-051-B ** ON A/C NOT FOR ALL
B. Installation of the USB Power-Outlet Units
F USB Power-Outlet Unit ** ON A/C NOT FOR ALL
   (1) Remove the CAP-BLANKING from each electrical connector and receptacle.
   (2) Make sure that all the electrical connections are clean and in the correct condition.
   (3) Hold the outlet units (1) in position and connect the electrical connectors (4).
   (4) Carefully install the outlet units (1) and make sure that they are in the correct position.
   (5) TORQUE the screws (2) to between 5 and 3 lbf.in (0.06 and 0.03 m.daN ) T.
   (6) Make sure that the latches (3) hold the outlet units (1) tightly.
   (7) Make sure that the work area is clean and clear of tools and other items.
Subtask 25-21-37-420-051-C ** ON A/C NOT FOR ALL
B. Installation of the USB Power-Outlet Units
F USB Power-Outlet Unit ** ON A/C NOT FOR ALL
   (1) Remove the CAP-BLANKING from each electrical connector and receptacle.
   (2) Make sure that all the electrical connections are clean and in the correct condition.
   (3) Hold the outlet units (1) in position and connect the electrical connectors (3).
   (4) Carefully install the outlet units (1) and make sure that they are in the correct position.
   (5) TORQUE the screws (4) to between 0.0176 and 0.0144 m.daN (1.56 and 1.27 lbf.in ) T.
   (6) Make sure that the latches (2) hold the outlet units (1) tightly.
   (7) Put the front plates (5) in position and install the screws (6).
   (8) TORQUE the screw (6) to between 0.0055 and 0.0045 m.daN (0.49 and 0.40 lbf.in ) T.
   (9) Make sure that the work area is clean and clear of tools and other items.
Subtask 25-21-37-865-059-A ** ON A/C NOT FOR ALL
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2000VUINSEAT POWER-MCU 259HPB08
2000VUINSEAT POWER-MCU 158HPB05
Subtask 25-21-37-710-051-A ** ON A/C NOT FOR ALL
D. Do the operational test of the in-seat power-supply system (Ref. AMM TASK 25-21-00-710-002).
5. Close-up
Subtask 25-21-37-862-051-A ** ON A/C NOT FOR ALL
A. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
[Rev.10 from 2021] 2026.03.31 23:30:27 UTC
"Aviabrain" 2025