DOC AIRBUS | TSM A320FSFCC 1 or 2 Shows a LH or RH Flap Attachment Proximity Sensor as a Misadjustment
TASK 27-51-00-810-830-A
SFCC 1 or 2 Shows a LH or RH Flap Attachment Proximity Sensor as a Misadjustment
1. Possible Causes
A. Referenced Information
3. Fault Confirmation
Subtask 27-51-00-740-062-A
Subtask 27-51-00-810-079-A
Subtask 27-51-00-942-071-A
[Rev.8 from Aug 2018]
2026.04.04 04:27:39 UTC
SFCC 1 or 2 Shows a LH or RH Flap Attachment Proximity Sensor as a Misadjustment
1. Possible Causes
- SENSOR-L FLAP ATTACHMENT FAILURE DETECTION [37CV]
- SENSOR-R FLAP ATTACHMENT FAILURE DETECTION [38CV]
- SENSOR-L FLAP ATTACHMENT FAILURE DETECTION [39CV]
- SENSOR-R FLAP ATTACHMENT FAILURE DETECTION [40CV]
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TSM TASK 27-51-00-810-817-A | Left Flap Interconnecting-Strut Attachment Failure-Detection Sensor Fault |
| TSM TASK 27-51-00-810-818-A | Flap Alignment Fault |
| TSM TASK 27-51-00-810-821-A | Right Flap Interconnecting-Strut Attachment Failure-Detection Sensor Fault |
| TSM TASK 32-31-00-810-802-A | LGCIU Fault |
| AMM 27-51-00-710-002 | Operational Test of the Flap Interconnecting Strut and the Flap-Attachment Failure-Detection Sensors |
| AMM 27-51-44-000-002 | Removal of the Proximity-Sensor of the Interconnecting Strut |
| AMM 27-51-44-400-002 | Installation of the Proximity-Sensor of the Interconnecting Strut |
| AMM 31-32-00-860-006 | Procedure to Get Access to the SYSTEM REPORT/TEST F/CTL Page |
Subtask 27-51-00-740-062-A
A. Test
(1) Do a check of the PFR and PLR:
(a) Before continue this procedure, do a check of a Flap Attachment Proximity Sensor fault detected by the LGCIU, (Ref. TSM TASK 32-31-00-810-802).
If a fault message shows, do the related TSM task.
(b) Before continue this procedure, do a check of a Flap Attachment Proximity Sensor fault, detected by the SFCC, (Ref. TSM TASK 27-51-00-810-817) or (Ref. TSM TASK 27-51-00-810-821).
If a fault message shows, do the related TSM task.
(c) If the fault message FLP LH(RH) PROX SNSR 1(2) 37CV(38CV,39CV,40CV) MISADJUSTMENT is shown at the same time as the fault message FLP 1(2) CHK LH(RH) MECH DRIVE shows, do the TSM-Task 'Flap Alignment Fault',
(Ref. TSM TASK 27-51-00-810-818).
(2) Do an operational test of the failure detection sensor for the flap attachment AMM 27-51-00-710-002
and refer to the System Status in ATA 31 AMM 31-32-00-860-006.
(a) If a misadjustment fault message is shown and the fault message FLP 1(2) CHK LH(RH) MECH DRIVE does not show at the same time, do the fault isolation procedure in Para. 4.A..
(b) If another fault message shows, do the related TSM Task.
4. Fault Isolation(1) Do a check of the PFR and PLR:
(a) Before continue this procedure, do a check of a Flap Attachment Proximity Sensor fault detected by the LGCIU, (Ref. TSM TASK 32-31-00-810-802).
If a fault message shows, do the related TSM task.
(b) Before continue this procedure, do a check of a Flap Attachment Proximity Sensor fault, detected by the SFCC, (Ref. TSM TASK 27-51-00-810-817) or (Ref. TSM TASK 27-51-00-810-821).
If a fault message shows, do the related TSM task.
(c) If the fault message FLP LH(RH) PROX SNSR 1(2) 37CV(38CV,39CV,40CV) MISADJUSTMENT is shown at the same time as the fault message FLP 1(2) CHK LH(RH) MECH DRIVE shows, do the TSM-Task 'Flap Alignment Fault',
(Ref. TSM TASK 27-51-00-810-818).
(2) Do an operational test of the failure detection sensor for the flap attachment AMM 27-51-00-710-002
and refer to the System Status in ATA 31 AMM 31-32-00-860-006.
(a) If a misadjustment fault message is shown and the fault message FLP 1(2) CHK LH(RH) MECH DRIVE does not show at the same time, do the fault isolation procedure in Para. 4.A..
(b) If another fault message shows, do the related TSM Task.
Subtask 27-51-00-810-079-A
A. Procedure
(1) If there is a proximity sensor misadjustment failure :
(a) Refer to the AMM 27-51-44-000-002 and AMM 27-51-44-400-002, use the removal and installation procedures to do the proximity sensor adjustment.
(b) Get access to the SYSTEM REPORT/TEST AMM 31-32-00-860-006.
(c) Make sure that the SYSTEM STATUS shows NO FAULTS.
(2) If the fault continues:
(a) Replace the applicable proximity sensor
(3) If the fault continues do the applicable task for an invalid proximity sensor (Ref. TSM TASK 27-51-00-810-817) or (Ref. TSM TASK 27-51-00-810-821).
(a) Repeat the test in Para. 3.A.(2), and make sure that the SYSTEM STATUS shows NO FAULTS.
5. Close-up(1) If there is a proximity sensor misadjustment failure :
(a) Refer to the AMM 27-51-44-000-002 and AMM 27-51-44-400-002, use the removal and installation procedures to do the proximity sensor adjustment.
(b) Get access to the SYSTEM REPORT/TEST AMM 31-32-00-860-006.
(c) Make sure that the SYSTEM STATUS shows NO FAULTS.
(2) If the fault continues:
(a) Replace the applicable proximity sensor
- SENSOR-L FLAP ATTACHMENT FAILURE DETECTION [37CV]
- SENSOR-R FLAP ATTACHMENT FAILURE DETECTION [38CV]
- SENSOR-L FLAP ATTACHMENT FAILURE DETECTION [39CV]
- SENSOR-R FLAP ATTACHMENT FAILURE DETECTION [40CV]
- AMM 27-51-44-000-002 and AMM 27-51-44-400-002
(3) If the fault continues do the applicable task for an invalid proximity sensor (Ref. TSM TASK 27-51-00-810-817) or (Ref. TSM TASK 27-51-00-810-821).
(a) Repeat the test in Para. 3.A.(2), and make sure that the SYSTEM STATUS shows NO FAULTS.
Subtask 27-51-00-942-071-A
A. Remove the ground support and maintenance equipment, the special and standard tools and all other items.
Subtask 27-51-00-860-072-A B. Put the aircraft back to its initial configuration.