Operational Test of the Three-Axis-Accelerometer thru the MCDU

TASK 31-33-00-710-016-A
Operational Test of the Three-Axis-Accelerometer thru the MCDU

FIN: 6TU

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 31-36-00-740-008-A	Access to the Parameter Call-Up Menus

3. Job Set-up
Subtask 31-33-00-861-065-A

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

Subtask 31-33-00-865-078-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AUTO FLT/MCDU/1	11CA1	B01
** ON A/C ALL
49VU	SDAC/1 AND 2/28VDC/ESS BUS	12WV	F05
49VU	SDAC/1/SPLY	3WV	F04
49VU	SDAC/2/26VAC SYNC/AC ESS BUS	6WV	F03
49VU	SDAC/1/26VAC SYNC/AC ESS BUS	5WV	F02
** ON A/C NOT FOR ALL
49VU	AUTO FLT/MCDU/1	11CA1	H07
** ON A/C NOT FOR ALL
121VU	EIS/SDAC/1/BUS1/26VAC SYNC AC	9WV	Q04
** ON A/C NOT FOR ALL
121VU	RCDR/DFDR	7TU	K16
** ON A/C NOT FOR ALL
121VU	RCDR/ACCLRM	9TU	K18
** ON A/C NOT FOR ALL
121VU	FDIU	8TU	K17
** ON A/C ALL
121VU	AUTO FLT/MCDU/2	11CA2	N20
121VU	HYDRAULIC/HYD/QTY/IND	1831GQ	P35
121VU	EIS/SDAC/2/SPLY	2WV	Q06
121VU	EIS/SDAC/2/BUS1/26VAC SYNC AC	10WV	Q05
121VU	EIS/SDAC/1/BUS2/26VAC SYNC AC	7WV	Q03
121VU	EIS/SDAC/2/BUS2/26VAC SYNC AC	8WV	Q02
** ON A/C NOT FOR ALL
121VU	AIDS & RCDR/FDIMU	5TV	K15
** ON A/C NOT FOR ALL
121VU	RCDR2 CVR&FDR	42TU	K16
** ON A/C NOT FOR ALL
121VU	RCDR/ACCLRM	9TU	K41
121VU	RCDR2 CVR&FDR	42TU	K39
121VU	AIDS & RCDR/FDIMU	5TV	K38

4. Procedure
Subtask 31-33-00-710-079-A

A. Test of the Three-Axis-Accelerometer via MCDU
(1) Get access to the ALPHA CALL up menu (Ref. AMM TASK 31-36-00-740-008).
(2) Enter the alpha call-up LATA, LONA and VRTA.
(3) Make sure that these ALPHA CALL ups show the correct value:

for LATA the value is between -0.1 and +0.1 ( nominal 0g)
for LONA the value is between -0.1 and +0.1 ( nominal 0g)
for VRTA the value is between +0.9 and +1.1 ( nominal 1g).

5. Close-up
Subtask 31-33-00-862-065-A

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

[Rev.10 from 2021] 2026.04.01 08:31:38 UTC