Installation of the EGIU-1(2)

TASK 24-22-33-400-002-A
Installation of the EGIU-1(2)

ZONE: 121
ZONE: 122
FIN: 22XU1 ** ON A/C NOT FOR ALL
FIN: 22XU2 ** 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	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
121	AVIONICS COMPARTMENT
122	AVIONICS COMPARTMENT
811

C. Referenced Information

REFERENCE	DESIGNATION
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)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
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 31-60-00-860-001-A	EIS Start Procedure
TASK 31-60-00-860-002-A	EIS Stop Procedure
Electrical Generation Interface Unit 1(2)

3. Job Set-up
Subtask 24-22-33-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).

NOTE: When the circuit breakers 4XG and 12XG are open, the EXT PWR/AVAIL caution light and the AVAIL legend of the EXT PWR pusbutton switch are off.

(2) On the ENG panel 115VU:

make sure that the WARNING NOTICE(S) to tell persons not to start the engine, is in position.

Subtask 24-22-33-865-053-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 22XU1 (EGIU1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
122VU	ELEC/EXT PWR/LT CLT/AVAIL	4XG	X31
122VU	ELEC/EXT PWR/CTL	11XG	X29
122VU	ELEC/EXT PWR/COCKPIT/AVAIL/LT	12XG	X28
122VU	ELEC/EXT PWR/EGIU1/28VDC	26XU1	Z31
123VU	EXT PWR/EGIU1/115VAC	23XG	AA07
123VU	GEN1/EGIU1/115VAC	23XU1	AF12
FOR FIN: 22XU2 (EGIU2)
122VU	ELEC/GEN1/OFF/BTC2 SPLY	14XU	T30
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25
122VU	APU GEN/EGIU2/28VDC	26XU2	Y31
122VU	GEN2/EGIU2/28VDC	24XU2	Y30
123VU	APU GEN/EGIU2/115VAC	23XS	AA08
123VU	GEN2/EGIU2/115VAC	23XU2	AF01

Subtask 24-22-33-010-051-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access door 811.
(2) Make sure that the access door 811 is open.

4. Procedure
Subtask 24-22-33-420-051-A ** ON A/C NOT FOR ALL

A. Installation of the EGIU
(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) Clean the component interfaces and the adjacent area.
(4) Do an inspection of the component interfaces and the adjacent area.
(5) Put the EGIU in position in the rack (6).
(6) Carefully push the EGIU until it engages the rack receptacle (5).
(7) Put the knurled nut (1) on the stud (2) and tighten the knurled nut (1).

Subtask 24-22-33-865-054-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 22XU1 (EGIU1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
122VU	ELEC/EXT PWR/LT CLT/AVAIL	4XG	X31
122VU	ELEC/EXT PWR/CTL	11XG	X29
122VU	ELEC/EXT PWR/COCKPIT/AVAIL/LT	12XG	X28
122VU	ELEC/EXT PWR/EGIU1/28VDC	26XU1	Z31
122VU	ELEC/GEN1/EGIU1/28VDC	24XU1	Z30
123VU	EXT PWR/EGIU1/115VAC	23XG	AA07
123VU	GEN1/EGIU1/115VAC	23XU1	AF12
FOR FIN: 22XU2 (EGIU2)
122VU	ELEC/GEN1/OFF/BTC2 SPLY	14XU	T30
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25
122VU	APU GEN/EGIU2/28VDC	26XU2	Y31
122VU	GEN2/EGIU2/28VDC	24XU2	Y30
123VU	APU GEN/EGIU2/115VAC	23XS	AA08
123VU	GEN2/EGIU2/115VAC	23XU2	AF01

Subtask 24-22-33-860-051-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).
(2) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 24-22-33-710-050-A ** ON A/C NOT FOR ALL

D. Operational Test of the EGIU
(1) For 22XU1
(a) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001)
(b) On the ECAM control panel, push the ELEC key (on the lower ECAM DU, the ELEC page comes into view).
(c) On the ELEC page, make sure that the following EXT PWR parameters are correct:

AC V = 115 + or - 5V,
FRQ HZ = 400 + or - 10HZ.

(d) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) For 22XU2
(a) Energize the aircraft electrical circuits from the APU (Ref. AMM TASK 24-41-00-861-002).
(b) On the ELEC page, make sure that the following APU GEN parameters are correct:

AC LOAD Percent shown in green,
AC V = 115 + or - 5V,
FRQ HZ = 400 + or - 10HZ.

5. Close-up
Subtask 24-22-33-862-051-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

Subtask 24-22-33-410-051-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 811.
(3) Remove the WARNING NOTICE(S).
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:22:08 UTC