REVISION REVISION
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES TITLE
DATE NUMBER
A318 A319 A321 49-00-00-710-009-A - Self-Test of
IGO AMM 01-Feb-2024 74
A320 the ECB
TAIL NUMBER - MSN - FSN:
Print date: 2024-02-06 01:40:52
** ON A/C FSN 151-152, 233-233, 235-235, 243-250, 301-302, 304-304, 306-307, 309-30
9, 311-608, 610-622, 632-700
TASK 49-00-00-710-009-A
Self-Test of the ECB
FIN: 59KD
WARNING: BEFORE YOU DO A SELF-TEST OF THE ECB, MAKE SURE THAT THERE IS NO OTH
ER MAINTENANCE TASK ON THE APU AT THE SAME TIME.
DURING THE SELF-TEST, THE ECB WILL CAUSE THE IGNITION PLUG TO FIRE A
NUMBER OF TIMES.
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information
REFERENCE DESIGNATION
Ref. 24-41-00-861-002-A Energize the Aircraft Electrical Circuits from the External P
ower
Ref. 24-41-00-861-002-A02 Energize the Aircraft Electrical Circuits from Engine 1(2)
Ref. 24-41-00-862-002-A De-energize the Aircraft Electrical Circuits Supplied from t
he External Power
Ref. 24-41-00-862-002-A02 De-energize the Aircraft Electrical Circuits Supplied from t
he Engine 1(2)
Ref. 31-32-00-860-001-A Procedure to Get Access to the SYSTEM REPORT/TEST Me
nu Page
Ref. 31-60-00-860-001-A EIS Start Procedure
3. Job Set-up
SUBTASK 49-00-00-860-093-A
A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
Ref. AMM TASK 24-41-00-861-002 or Ref. AMM TASK 24-41-00-861-002.
(2) Do the Electronic Instrument System (EIS) start procedure Ref. AMM TASK 31-60-
00-860-001.
(3) On overhead panel 25VU, push the APU MASTER SW pushbutton switch (the ON le
gend comes on).
(4) Do the procedure to get the SYSTEM/REPORT TEST item APU Ref. AMM TASK 31-3
2-00-860-001.
SUBTASK 49-00-00-865-099-A
B. Make sure that this (these) circuit breaker(s) is (are) closed:
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
REVISION REVISION
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES TITLE
DATE NUMBER
A318 A319 A321 49-00-00-710-009-A - Self-Test of
IGO AMM 01-Feb-2024 74
A320 the ECB
TAIL NUMBER - MSN - FSN:
Print date: 2024-02-06 01:40:52
PANEL DESIGNATION FIN LOCATION
** ON A/C FSN 683-683, 689-700
105VU ECB HOT SPLY 80KD
** ON A/C FSN 151-152, 233-233, 235-235, 243-250, 301-302, 304-304, 306-307, 309-
309, 311-608, 610-622, 632-682, 684-688
121VU APU/APU/CTL 2KD L42
** ON A/C FSN 151-152, 233-233, 235-235, 243-250, 301-302, 304-304, 306-307, 309-
309, 311-608, 610-622, 632-700
121VU APU/ECB/SPLY 1KD L41
** ON A/C FSN 683-683, 689-700
121VU APU/CTL 2KD L42
121VU ECB HOT SPLY CTL 82KD R11
4.
** ON A/C FSN 151-152, 233-233, 235-235, 243-250, 301-302, 304-304, 306-307, 309-3
09, 311-608, 610-622, 632-700
Procedure
SUBTASK 49-00-00-740-052-A
WARNING: MAKE SURE THAT THE TRAVEL RANGE OF THE AIR-INTAKE SYSTEM COMP
ONENTS IS CLEAR. MOVEMENT OF AIR-INTAKE SYSTEM COMPONENTS CA
N CAUSE INJURY AND/OR DAMAGE.
A. Self-Test of the ECB
ACTION RESULT
1.On the MCDU: On the MCDU:
- push the pushbutton switch adjacen - the APU page is shown.
t to the APU indication.
2.On the MCDU: On the APU TEST page:
- push the pushbutton switch adjacen - the TEST OK is shown if the ECB is se
t to the TEST indication. rviceable.
5. Close-up
SUBTASK 49-00-00-860-094-A
A. Aircraft Maintenance Configuration
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the
CFDS menu page comes into view.
(2) On overhead panel 25VU, release the APU MASTER SW pushbutton switch (the ON
legend goes off).
(3) De-energize the aircraft electrical circuits
Ref. AMM TASK 24-41-00-862-002 or Ref. AMM TASK 24-41-00-862-002.
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
