Side Stick not Locked in AP Mode (New-Generation Side-Stick Unit)

TASK 27-93-00-810-981-A
Side Stick not Locked in AP Mode (New-Generation Side-Stick Unit)

NOTE: This task is applicable only for the new-generation side-stick unit.

1. Possible Causes

SSU-CAPT (100CE1)
wiring from the connector 2197VC to the first terminal block
wiring from the connector 2197VC to the ground
SSU-F/O (100CE2)
wiring from the connector 2188VC to the first terminal block
wiring from the connector 2188VC to the ground
RELAY-STICK LOCK 1/CAPT [21CA]
wiring from the relay (21CA) to the first terminal block
RELAY-STICK LOCK 1/F/O [23CA]
wiring from the relay (23CA) to the first terminal block
RELAY-STICK LOCK 2/CAPT [22CA]
wiring from the relay (22CA) to the first terminal block
RELAY-STICK LOCK 2/F/O [24CA]
wiring from the relay (24CA) to the first terminal block
C/B-AUTO FLT/STICK/LOCK [13CA]
wiring from the circuit breaker (13CA) to the first terminal block
FMGC-1 [1CA1]
wiring of the STICK LOCK COM and STICK LOCK MON signals from the FMGC1 to the first terminal block
FMGC-2 [1CA2]
wiring of the STICK LOCK COM and STICK LOCK MON signals from the FMGC2 to the first terminal block

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 22-10-00-710-002	Operational Test of Autopilot Disengagement and Locking Devices of the Side Stick Controller and Rudder Pedals
AMM 22-83-34-000-001	Removal of the FMGC
AMM 22-83-34-400-001	Installation of the FMGC
ASM 228408
AIPC 22840802
ASM 228501
AWM 228532
AMM 27-92-41-000-802	Removal of the New-Generation Side-Stick Unit
AMM 27-92-41-400-802	Installation of the New-Generation Side-Stick Unit

3. Fault Confirmation
Subtask 27-93-00-710-069-A

A. Test
Do the operational test of autopilot disengagement and locking devices of the side stick controller and rudder pedals AMM 22-10-00-710-002.

4. Fault Isolation
Subtask 27-93-00-865-056-A

A. Table of the circuit breakers used in this procedure:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	AUTO FLT/STICK/LOCK	13CA	N16

Subtask 27-93-00-810-261-A

B. If the CAPT side stick is not locked with AP1 then AP2 engaged:
(1) If the fault continues:

replace the SSU-CAPT (100CE1) AMM 27-92-41-000-802 and AMM 27-92-41-400-802.

(2) If the fault continues:

do a check of the wiring from the connector 2197VC to the first terminal block , pin <H to the terminal block 1871VT AWM 228532
do a check and repair the wiring from the connector 2197VC to the ground , pin <G AWM 228532.

Subtask 27-93-00-810-276-A

C. If the F/O side stick is not locked with AP1 then AP2 engaged:
(1) Replace the SSU-F/O (100CE2) AMM 27-92-41-000-802 and AMM 27-92-41-400-802.
(2) If the fault continues:

do a check of the wiring from the connector 2188VC to the first terminal block , pin <H to the terminal block 1871VT AWM 228532
do a check and repair the wiring from the connector 2188VC to the ground , pin <G AWM 228532.

Subtask 27-93-00-810-277-A

D. If the CAPT side stick is not locked with AP1 engaged only:
(1) Replace the RELAY-STICK LOCK 1/CAPT [21CA] AIPC 22840802.
(2) If the fault continues:

do a check and repair the wiring from the relay (21CA) to the first terminal block:
. pin A/A1 to the terminal block 1871VT
. pin A/A2 to the terminal block 1833VT
. pin A/X1 to the terminal block 1831VT
. pin A/X2 to the terminal block 1833VT ASM 228501.

Subtask 27-93-00-810-278-A

E. If the F/O side stick is not locked with AP1 engaged only:
(1) Replace the RELAY-STICK LOCK 1/F/O [23CA] AIPC 22840802.
(2) If the fault continues:

do a check and repair the wiring from the relay (23CA) to the first terminal block:
. pin A/A1 to the terminal block 1871VT
. pin A/A2 to the terminal block 1833VT
. pin A/X1 to the terminal block 1831VT
. pin A/X2 to the terminal block 1833VT ASM 228501.

Subtask 27-93-00-810-279-A

F. If the CAPT side stick is not locked with AP2 engaged only:
(1) Replace the RELAY-STICK LOCK 2/CAPT [22CA] AIPC 22840802.
(2) If the fault continues:

do a check and repair the wiring from the relay (22CA) to the first terminal block:
. pin A/A1 to the terminal block 1871VT
. pin A/A2 to the terminal block 1833VT
. pin A/X1 to the terminal block 1840VT
. pin A/X2 to the terminal block 1842VT ASM 228501.

Subtask 27-93-00-810-280-A

G. If the F/O side stick is not locked with AP2 engaged only:
(1) Replace the RELAY-STICK LOCK 2/F/O [24CA] AIPC 22840802.
(2) If the fault continues:

do a check and repair the wiring from the relay (24CA) to the first terminal block:
. pin A/A1 to the terminal block 1871VT
. pin A/A2 to the terminal block 1833VT
. pin A/X1 to the terminal block 1840VT
. pin A/X2 to the terminal block 1842VT ASM 228501.

Subtask 27-93-00-810-281-A

H. If the CAPT and F/O side sticks are not locked with AP1 then AP2 engaged:
(1) Replace the C/B-AUTO FLT/STICK/LOCK [13CA] ASM 228408.
(2) If the fault continues:

do a check and repair the wiring from the circuit breaker (13CA) to the first terminal block ASM 228501.

Subtask 27-93-00-810-282-A

I. If the CAPT and F/O side sticks are not locked with AP1 engaged only:
(1) Replace the FMGC-1 [1CA1] AMM 22-83-34-000-001 and AMM 22-83-34-400-001.
(2) If the fault continues:

replace the RELAY-STICK LOCK 1/CAPT [21CA] AIPC 22840802.

(3) If the fault continues:

replace the RELAY-STICK LOCK 1/F/O [23CA] AIPC 22840802.

(4) If the fault continues:

do a check of the wiring of the STICK LOCK COM and STICK LOCK MON signals from the FMGC1 to the first terminal block ASM 228501.

(a) If there is no continuity:

repair the above wiring.

(b) If there is continuity:

do a check for a short circuit and repair the wiring of the STICK LOCK COM and STICK LOCK MON signals from the FMGC1 to the relay (23CA) and the relay (21CA) ASM 228501.

Subtask 27-93-00-810-283-A

J. If the CAPT and F/O side sticks are not locked with AP2 engaged only:
(1) Replace the FMGC-2 [1CA2] AMM 22-83-34-000-001 and AMM 22-83-34-400-001.
(2) If the fault continues:

do a check of the wiring of the STICK LOCK COM and STICK LOCK MON signals from the FMGC2 to the first terminal block ASM 228501.

(a) If there is no continuity:

repair the above wiring.

(b) If there is continuity:

do a check for a short circuit and repair the wiring of the STICK LOCK COM and STICK LOCK MON signals from the FMGC2 to the relay (22CA) and the relay (24CA) ASM 228501.

Subtask 27-93-00-740-209-A

K. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:39:20 UTC