DOC AIRBUS | AMM A320FInspection of the Vertical Stabilizer Trailing Edge Access-Panels for Missing Fasteners
TASK 55-33-00-200-001-A
Inspection of the Vertical Stabilizer Trailing Edge Access-Panels for Missing Fasteners
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 55-33-00-860-057-A
Subtask 55-33-00-210-050-B ** ON A/C NOT FOR ALL
Subtask 55-33-00-865-051-A
[Rev.10 from 2021]
2026.04.01 03:55:54 UTC
Inspection of the Vertical Stabilizer Trailing Edge Access-Panels for Missing Fasteners
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
ZONE: 325
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | 1 | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 325 | VERTICAL STABILIZER TRAILING EDGE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 29-00-00-864-001-A | Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action |
| TASK 55-33-13-010-002-A | Opening/Removal of the Trailing Edge Access-Panels of the Vertical Stabilizer |
| TASK 55-33-13-410-002-A | Closing/Installation of the Trailing Edge Access-Panels of the Vertical Stabilizer |
Vertical Stabilizer Trailing Edge Access-PanelsSubtask 55-33-00-860-057-A
A. Aircraft Maintenance Configuration
(1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
(2) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the flight controls.
(3) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at the vertical stabilizer trailing edge.
Subtask 55-33-00-865-050-A (1) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
(2) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the flight controls.
(3) Put an ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE in position at the vertical stabilizer trailing edge.
B. Open, safety and tag this(these) circuit breaker(s):
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
Subtask 55-33-00-210-050-B ** ON A/C NOT FOR ALL
A. Do an inspection of the vertical stabilizer trailing edge access-panels for missing fasteners
(1) Make sure that the studs (4) and the washers (5) are installed and in the correct condition.
(2) If necessary, open/remove the trailing edge access-panels (Ref. AMM TASK 55-33-13-010-002):
(a) Make sure that the receptacles (1) are installed and in the correct condition.
(b) Replace/install the receptacles (1) as necessary.
(c) Make sure that the washers (3) and the snap-rings (2) are installed at the studs (4) and in the correct condition.
(d) If necessary replace/install the washers (3) and/or the snap-rings (2).
(3) Replace the missing fasteners within 100 flight hours.
(a) Make sure that the new studs (4) have a washer (5) and (3) and a snap-ring (2).
Subtask 55-33-00-210-050-C ** ON A/C NOT FOR ALL (1) Make sure that the studs (4) and the washers (5) are installed and in the correct condition.
(2) If necessary, open/remove the trailing edge access-panels (Ref. AMM TASK 55-33-13-010-002):
(a) Make sure that the receptacles (1) are installed and in the correct condition.
(b) Replace/install the receptacles (1) as necessary.
(c) Make sure that the washers (3) and the snap-rings (2) are installed at the studs (4) and in the correct condition.
(d) If necessary replace/install the washers (3) and/or the snap-rings (2).
(3) Replace the missing fasteners within 100 flight hours.
(a) Make sure that the new studs (4) have a washer (5) and (3) and a snap-ring (2).
NOTE: You can temporarily replace a missing fastener by a fastener from another panel. Make sure that the replacement fastener has the same size and the same length as the missing one. Obey the criteria in the subsequent table when you remove a fastener from any other panel.
| Panel Designation | Vertical Stabilizer Missing Fasteners Description (Refer to the No. 1 zones on the figure) | Maximum Quantity of Missing Fasteners per Panel |
|---|---|---|
| 325EL | One missing fastener permitted. | Seven missing fasteners permitted. |
| 325ER | One missing fastener permitted. | Seven missing fasteners permitted. |
| 325DL | One missing fastener permitted. | Five missing fasteners permitted. |
| 325DR | One missing fastener permitted. | Six missing fasteners permitted. |
| 325CL | One missing fastener permitted. | Four missing fasteners permitted. |
| 325CR | One missing fastener permitted. | Four missing fasteners permitted. |
| 325BL | One missing fastener permitted. | Four missing fasteners permitted. |
| 325BR | One missing fastener permitted. | Four missing fasteners permitted. |
A. Inspection of the Vertical-Stabilizer Trailing-Edge Access-Panels for Missing Fasteners
(1) Do an inspection of the vertical-stabilizer trailing-edge access-panels for missing fasteners.
(3) If necessary, open the applicable vertical-stabilizer trailing-edge access-panel(s) (Ref. AMM TASK 55-33-13-010-002).
(a) Make sure that the receptacles (1) are correctly installed and in the correct condition.
(b) If necessary, correctly install the receptacles (1) or install new receptacles (1).
(c) Make sure that the washers (3) and the snap rings (2) are correctly installed on the studs (4) and are in the correct condition.
(d) If necessary, correctly install the washers (3) and/or the snap rings (2) or install new washers (3) and/or new snap rings (2).
(4) Install fasteners where they are missing in 100 Flight Hours (FH) or less. Make sure that each new stud (4) has:
5. Close-up(1) Do an inspection of the vertical-stabilizer trailing-edge access-panels for missing fasteners.
NOTE: Only vertical-stabilizer trailing-edge access-panels 325BL, 325BR, 325CL, 325CR and 325DL have fasteners.
(2) Make sure that the studs (4) and the washers (5) are correctly installed and in the correct condition. (3) If necessary, open the applicable vertical-stabilizer trailing-edge access-panel(s) (Ref. AMM TASK 55-33-13-010-002).
(a) Make sure that the receptacles (1) are correctly installed and in the correct condition.
(b) If necessary, correctly install the receptacles (1) or install new receptacles (1).
(c) Make sure that the washers (3) and the snap rings (2) are correctly installed on the studs (4) and are in the correct condition.
(d) If necessary, correctly install the washers (3) and/or the snap rings (2) or install new washers (3) and/or new snap rings (2).
(4) Install fasteners where they are missing in 100 Flight Hours (FH) or less. Make sure that each new stud (4) has:
- One washer (5), one washer (3) and one snap ring (2)
- The correct size and length.
| Panel designation | Vertical stabilizer - missing fasteners description (refer to the zones related to note 2 in the figure) | Maximum quantity of missing fasteners for each panel |
|---|---|---|
| 325BL | One missing fastener is permitted. | Four missing fasteners are permitted. |
| 325BR | One missing fastener is permitted. | Four missing fasteners are permitted. |
| 325CL | One missing fastener is permitted. | Four missing fasteners are permitted. |
| 325CR | One missing fastener is permitted. | Four missing fasteners are permitted. |
| 325DL | One missing fastener is permitted. | Five missing fasteners are permitted. |
Subtask 55-33-00-865-051-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 55-33-00-860-058-B | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B11 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B09 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B08 |
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | B04 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | B03 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/ELAC1/NORM/SPLY | 15CE1 | B06 |
| 49VU | FLIGHT CONTROLS/THS/ACTR/MOT2 | 19CE2 | B04 |
| 49VU | FLIGHT CONTROLS/SEC1/NORM/SPLY | 21CE1 | B03 |
| 49VU | AUTO FLT/FAC1/28VDC | 5CC1 | H10 |
| 49VU | AUTO FLT/FAC1/26VAC | 14CC1 | H09 |
| ** ON A/C ALL | |||
| 105VU | FLIGHT CONTROLS/ELAC2/STBY SPLY | 16CE2 | A02 |
| 105VU | FLT CTL/ELAC1/STBY SPLY | 16CE1 | A01 |
| 105VU | FLT CTL/SEC1/STBY SPLY | 22CE | B01 |
| 121VU | AUTO FLT/RUDDER/TRIM/IND | 15CC | M20 |
| 121VU | AUTO FLT/FAC2/28VDC | 5CC2 | M19 |
| 121VU | AUTO FLT/FAC2/26VAC | 14CC2 | M18 |
| 121VU | FLIGHT CONTROLS/SEC3/SPLY | 21CE3 | Q19 |
| 121VU | FLIGHT CONTROLS/SEC2/SPLY | 21CE2 | Q18 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT3 | 19CE3 | Q17 |
| 121VU | FLIGHT CONTROLS/THS ACTR/MOT1 | 19CE1 | Q16 |
| 121VU | FLIGHT CONTROLS/ELAC2/NORM/SPLY | 15CE2 | R20 |
B. Put the aircraft back to the serviceable condition.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If necessary, close/install the trailing edge access-panels (Ref. AMM TASK 55-33-13-410-002).
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If necessary, close/install the trailing edge access-panels (Ref. AMM TASK 55-33-13-410-002).
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).