Installation of the Static Inverter

TASK 24-28-51-400-001-A
Installation of the Static Inverter

ZONE: 126
FIN: 3XB

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
126	LATERAL AVIONIC COMPARTMENT
822

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-28-00-710-001-A	Operational Test of the Static Inverter when the Aircraft Electrical Circuits are Energized from the External Power
TASK 24-28-00-710-001-A-01	Operational Test of the Static Inverter when the Aircraft Electrical Circuits are Energized from the APU
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
Static Inverter

3. Job Set-up
Subtask 24-28-51-860-050-A

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access door 822.
(3) Make sure that the access door 822 is open.

Subtask 24-28-51-865-051-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
105VU	ELEC/STAT INV/CNTOR/CTL	14XB	G02

4. Procedure
Subtask 24-28-51-420-050-A

A. Installation of the Static Inverter
(1) Put the static inverter (1) in position on its support (4).
(2) Install the washers (5) and the screws (6) and then tighten the screws.
(3) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Make sure that all the electrical connections are clean and in the correct condition.
(5) Connect the electrical connector (3).

Subtask 24-28-51-865-052-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
105VU	ELEC/STAT INV/CNTOR/CTL	14XB	G02

Subtask 24-28-51-710-050-A

C. Do an operational test of the static inverter (Ref. AMM TASK 24-28-00-710-001).

5. Close-up
Subtask 24-28-51-410-050-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 822.
(3) Remove the access platform(s).

Subtask 24-28-51-862-050-A

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

[Rev.10 from 2021] 2026.03.31 23:23:03 UTC