Installation of the SEC

TASK 27-94-34-400-001-A
Installation of the SEC

ZONE: 121
ZONE: 127
ZONE: 128
FIN: 1CE1
FIN: 1CE2
FIN: 1CE3

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
121	AVIONICS COMPARTMENT
127	REAR AVIONIC COMPARTMENT
128	REAR AVIONIC COMPARTMENT
811, 822, 824

C. Referenced Information

REFERENCE	DESIGNATION
TASK 27-94-00-610-801-A	Uploading of the Spoiler Elevator Computer (SEC) Software
TASK 27-94-34-000-001-A	Removal of the SEC
TASK 27-94-34-400-001-A	Installation of the SEC
TASK 31-32-00-860-006-A	Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page
TASK 52-41-00-410-002-A	Close the Avionics Compartment Doors after Access
Spoiler Elevator Computer (SEC)
FOR [1CE1] (SEC-1)
TASK 27-94-00-710-002-A	Operational Test of the Spoiler Elevator Computer 1 (SEC 1)
FOR [1CE2] (SEC-2)
TASK 27-94-00-710-003-A	Operational Test of the Spoiler Elevator Computer 2 (SEC 2)
FOR [1CE3] (SEC-3)
TASK 27-94-00-710-001-A	Operational Test of the Spoiler Elevator Computer 3 (SEC 3)

3. Job Set-up
Subtask 27-94-34-010-052-A

A. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access doors 822, 824 and 811.
(2) Make sure that the access doors 822, 824 and 811 are open:
(3) On the battery power center 105VU:

Make sure that the protective cover is open.

Subtask 27-94-34-865-051-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1CE1 (SEC1)
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
** ON A/C ALL
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
FOR FIN: 1CE2 (SEC2)
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
FOR FIN: 1CE3 (SEC3)
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19

4. Procedure
Subtask 27-94-34-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Spoiler Elevator Computer (SEC)
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the blanking caps from the electrical connectors (2).
(4) Install the SEC (1) on its rack (3).
(5) Push the SEC (1) on its rack (3) to connect the electrical connectors (2).
(6) Engage the nuts on the lugs:

CAUTION: MAKE SURE THAT THE OBRM(S) IS (ARE) CORRECTLY INSTALLED. IF IT (THEY) IS(ARE) NOT INSTALLED CORRECTLY, PUSH THE OBRM(S) UNTIL THE LOCKING DEVICES ARE LOCKED.

(a) Engage the nuts (4) on the lugs and tighten.

Subtask 27-94-34-420-050-B ** ON A/C NOT FOR ALL

Subtask 27-94-34-865-052-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 NOT FOR ALL
FOR FIN: 1CE1 (SEC1)
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B08
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SEC1/NORM/SPLY	21CE1	B03
** ON A/C ALL
105VU	FLT CTL/SEC1/STBY SPLY	22CE	B01
FOR FIN: 1CE2 (SEC2)
121VU	FLIGHT CONTROLS/SEC2/SPLY	21CE2	Q18
FOR FIN: 1CE3 (SEC3)
121VU	FLIGHT CONTROLS/SEC3/SPLY	21CE3	Q19

Subtask 27-94-34-280-052-A ** ON A/C NOT FOR ALL

C. Do the LRU IDENTIFICATION of the SEC

NOTE: This procedure is for the SEC1. For the SEC2, use the indications between the parentheses.

(1) Do the procedure to get access to the SYSTEM REPORT/TEST F/CTL page (Ref. AMM TASK 31-32-00-860-006).

ACTION	RESULT
1.Push the line key adjacent to the EFCS 1(2) indication.	- The EFCS 1(2) menu page comes into view.
2.Push the line key adjacent to the LRU IDENTIFICATION indication.	- The LRU IDENTIFICATION page comes into view. The P/N given on this page is the operational software P/N.

(2) Make sure that the P/N of the SEC shown on the LRU IDENTIFICATION page agrees with the Airline Configuration Management Document.
(a) If the P/N is different from the PN(s) given in the Airline Configuration Management Document, replace the SEC (Ref. AMM TASK 27-94-34-000-001) and (Ref. AMM TASK 27-94-34-400-001).

NOTE: For SEC P/N B372CAMxxxx, Airbus recommends to put (or update) an informative label on the front face of the computer with the P/N of the loaded software. This label is for information only. The procedure to identify the operational software P/N stays the LRU IDENTIFICATION on the MCDU.

Subtask 27-94-34-280-052-B ** ON A/C NOT FOR ALL

C. Do the LRU IDENTIFICATION of the SEC

NOTE: This procedure is for the SEC1. For the SEC2, use the indications between the parentheses.

(1) Do the procedure to get access to the SYSTEM REPORT/TEST F/CTL page (Ref. AMM TASK 31-32-00-860-006).

ACTION	RESULT
1.Push the line key adjacent to the EFCS 1(2) indication.	- The EFCS 1(2) menu page comes into view.
2.Push the line key adjacent to the LRU IDENTIFICATION indication.	- The LRU IDENTIFICATION page comes into view. The P/N given on this page is the operational software P/N.

If the SEC LRU IDENTIFICATION shows the P/N B372BAMxxxx or B372BBMxxxx (non-dataloadable units), replace the SEC (Ref. AMM TASK 27-94-34-000-001) and (Ref. AMM TASK 27-94-34-400-001).

If the SEC LRU IDENTIFICATION shows the P/N B372CAMxxxx, do the uploading of the SEC software (Ref. AMM TASK 27-94-00-610-801).

Subtask 27-94-34-710-050-A

D. Do the operational test of the SEC (1CE1,1CE2,1CE3).

CAUTION: MAKE SURE THAT THE SOFTWARE INSTALLED AGREES WITH THE AIRLINE CONFIGURATION MANAGEMENT DOCUMENT. THE SYSTEM OPERATIONAL TEST OR BITE TEST DOES NOT DETECT INCORRECT SOFTWARE CONFIGURATION.

(1) FOR [1CE1] (SEC-1)
(Ref. AMM TASK 27-94-00-710-002)
(2) FOR [1CE2] (SEC-2)
(Ref. AMM TASK 27-94-00-710-003)
(3) FOR [1CE3] (SEC-3)
(Ref. AMM TASK 27-94-00-710-001)

5. Close-up
Subtask 27-94-34-410-050-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the protective cover on the battery power center 105VU.
(3) Tighten the two screws.
(4) Close the access door 822, 824 and 811 (Ref. AMM TASK 52-41-00-410-002)
(5) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:59:45 UTC