Change the Engine Interface Unit (EIU) DISCRETE OUTPUTS Menu Data Status [PW11]

TASK 73-25-34-860-804-A
Change the Engine Interface Unit (EIU) DISCRETE OUTPUTS Menu Data Status

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. 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 31-32-00-860-012-A	Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page
TASK 31-60-00-860-002-A	EIS Stop Procedure

3. Job Set-up
Subtask 73-25-34-861-061-A ** ON A/C NOT FOR ALL

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

Subtask 73-25-34-865-073-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENG 1)
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R40
** ON A/C NOT FOR ALL
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENG 2)
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	Q40
** ON A/C NOT FOR ALL
121VU	ENGINE/ENG2/FADEC B/AND EIU2	4KS2	R41

Subtask 73-25-34-860-105-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) On the left or right MCDU, get the SYSTEM REPORT/TEST ENG page (Ref. AMM TASK 31-32-00-860-012).

4. Procedure

NOTE: The current status of each DISCRETE OUTPUT (DSO) is updated every five seconds.

NOTE: When the EIU is on the ground and receives the DISCRETE INPUTS (DSIs) "Oil Low Press Switch" set to 1 from the dedicated engine, you can change the real status of any DSO.

NOTE: You can only change one DISCRETE OUTPUT at a time, but you can change the 11 DISCRETE OUTPUTS one by one to get the configuration that is necessary.

NOTE: DISCRETE OUTPUTS return to their normal state when you exit the DISCRETE OUTPUTS menu.

Subtask 73-25-34-860-086-A ** ON A/C NOT FOR ALL

A. DISCRETE OUTPUTS P TYPE

ACTION	RESULT
1.Push the line key adjacent to the EIU1(EIU2) indication on the MCDU.	The EIU1(EIU2) menu comes into view.
2.Push the line key adjacent to the TESTS indication.	On the MENU page, the TEST menu comes into view.
3.Push the line key adjacent to the SPECIFIC DATA indication.	On the MENU page, the SPECIFIC DATA menu comes into view.
4.Push the line key adjacent to the DISCRETE OUTPUTS SIMUL indication.	The DISCRETE OUTPUTS SIMUL menu comes into view.
5.Push the line key adjacent to DISCRETE OUTPUTS P TYPE indication.	The DISCRETE OUTPUTS SIMUL (P TYPE: 28VDC/OPEN) menu comes into view. On page 1: APU BOOST CMD1 APU BOOST CMD2 OLP AND GND1 OLP AND GND2 On page 2: LIGHT FAULT ON. NOTE: When the DSO type P commands an electrical ground circuit, then the status displayed shall be 1. When the DSO type P commands an electrical open circuit, then the status displayed shall be 0. When the DSO type P is failed, then the status displayed shall be a dash (-).
6.On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
7.Stop the MCDU.

Subtask 73-25-34-860-106-A ** ON A/C NOT FOR ALL

B. DISCRETE OUTPUTS N TYPE

ACTION	RESULT
1.Push the line key adjacent to the EIU1(EIU2) indication on the MCDU.	The EIU1(EIU2) menu comes into view.
2.Push the line key adjacent to the TESTS indication.	On the MENU page, the TEST menu comes into view.
3.Push the line key adjacent to the SPECIFIC DATA indication.	On the MENU page, the SPECIFIC DATA menu comes into view.
4.Push the line key adjacent to the DISCRETE OUTPUTS SIMUL indication.	The DISCRETE OUTPUTS SIMUL menu comes into view.
5.Push the line key adjacent to DISCRETE OUTPUTS N TYPE indication.	The DISCRETE OUTPUTS SIMUL (N TYPE: GND/OPEN) menu comes into view. On page 1: HPSOV CLOSED N2 NOT BELOW IDLE TLA IN T/O POS PACK VLV CLOSURE On page 2: NAI P/B FAULT SLAT EXTEND INHIB. NOTE: When the DSO type N commands an electrical ground circuit, then the status displayed shall be 1. When the DSO type N commands an electrical open circuit, then the status displayed shall be 0. When the DSO type N is failed, then the status displayed shall be a dash (-).
6.On the MCDU, push the line key adjacent to the RETURN indication until the CFDS menu page comes into view.
7.Stop the MCDU.

5. Close-up
Subtask 73-25-34-862-061-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 03:03:29 UTC