DOC AIRBUS | AMM A320FInstallation of the Ground Service Panel Door of the Yellow Hydraulic System (198CB)
TASK 52-42-23-400-001-A
Installation of the Ground Service Panel Door of the Yellow Hydraulic System (198CB)
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 52-42-23-941-050-A
Subtask 52-42-23-420-050-A ** ON A/C NOT FOR ALL
Subtask 52-42-23-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 07:23:49 UTC
Installation of the Ground Service Panel Door of the Yellow Hydraulic System (198CB)
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
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) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 198KB | |
| 198BB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 53-35-13-000-002-A | Removal of the Quick-Release Access Panels from the Belly Fairing Structure |
| TASK 53-35-13-400-002-A | Installation of the Quick-Release Access Panels on the Belly Fairing Structure |
Subtask 52-42-23-941-050-A
A. Make sure that the ACCESS PLATFORM 2M (6 FT) is in position below the ground service panel door of the Yellow hydraulic system.
4. ProcedureSubtask 52-42-23-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Ground Service Panel Door of the Yellow Hydraulic System
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the access door (1) in the installation position.
(4) Install the screws (2), the washers (5) and the nuts (6).
(5) Install the bonding strap (7) (Ref. AMM TASK 20-28-00-912-802).
(6) If it was necessary to remove the spring bolt assembly, install it as follows:
(a) Make sure that all parts of the removed spring bolt assembly are clean and in the correct condition.
(b) Make sure that the bearing flange assy (18) and the hinge (3) are clean and in the correct condition.
(c) Install the spring bolt (12) with the pin (19) and the retaining ring (8) at the hinge (3).
(d) Put the compression spring (14) and the guide (16) in position on the spring bolt (12).
(e) Install the guide (16) with the washers (15), the pin (17) and the retaining ring (13) at the bearing flange assy (18).
(7) If it was necessary to remove the hinges (3) and (4), install them as follows:
(a) Make sure that the support fitting assemblies (11) are clean and in the correct condition.
(b) Install the hinges (3) and (4) with the pins (10) and the retaining rings (9) at the support fitting assemblies (11).
(c) Connect the spring bolt assembly with the pin (19) and the retaining ring (8).
Subtask 52-42-23-420-050-B ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the access door (1) in the installation position.
(4) Install the screws (2), the washers (5) and the nuts (6).
(5) Install the bonding strap (7) (Ref. AMM TASK 20-28-00-912-802).
(6) If it was necessary to remove the spring bolt assembly, install it as follows:
(a) Make sure that all parts of the removed spring bolt assembly are clean and in the correct condition.
(b) Make sure that the bearing flange assy (18) and the hinge (3) are clean and in the correct condition.
(c) Install the spring bolt (12) with the pin (19) and the retaining ring (8) at the hinge (3).
(d) Put the compression spring (14) and the guide (16) in position on the spring bolt (12).
(e) Install the guide (16) with the washers (15), the pin (17) and the retaining ring (13) at the bearing flange assy (18).
(7) If it was necessary to remove the hinges (3) and (4), install them as follows:
(a) Make sure that the support fitting assemblies (11) are clean and in the correct condition.
(b) Install the hinges (3) and (4) with the pins (10) and the retaining rings (9) at the support fitting assemblies (11).
(c) Connect the spring bolt assembly with the pin (19) and the retaining ring (8).
A. Installation of the Ground Service Panel Door of the Yellow Hydraulic System
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) If removed, assemble the hinges (3) on the ground service panel and attach it with the screws (5) and the washers (4).
(4) Put the access door (2) on the hinges (3) and attach it with the the bolts (9), the washers (10) and the nuts (11).
(5) Put the bonding strap (6) on the upper hinge (3) and attach it with the bolt (1), the washer (7) and the nut (8) (Ref. AMM TASK 20-28-00-912-802).
Subtask 52-42-23-820-050-A ** ON A/C NOT FOR ALL (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) If removed, assemble the hinges (3) on the ground service panel and attach it with the screws (5) and the washers (4).
(4) Put the access door (2) on the hinges (3) and attach it with the the bolts (9), the washers (10) and the nuts (11).
(5) Put the bonding strap (6) on the upper hinge (3) and attach it with the bolt (1), the washer (7) and the nut (8) (Ref. AMM TASK 20-28-00-912-802).
B. Adjustment of the Ground Service Panel Door of the Yellow Hydraulic System
(1) Carefully close and lock the access door (1).
(2) Make sure that the values of the permitted contour offset and the clearance between the access door (1) and the panel 198BB are in the limits.
Adjustment of the Ground Service Panel Door of the Yellow Hydraulic System ** ON A/C NOT FOR ALL
Adjustment of the Ground Service Panel Door of the Yellow Hydraulic System ** ON A/C NOT FOR ALL
(3) If it is necessary to adjust the access door (1):
(a) Remove the access panel 198BB as necessary (Ref. AMM TASK 53-35-13-000-002).
(b) Loosen the screws (31).
(c) Adjust the latch hook (30) until you get the correct values.
(d) Tighten the screws (31).
(4) Make sure that it is possible to open and close the access door (1) correctly.
(5) Make sure that the latch assembly is correctly locked and that the access door (1) makes a continues surface with the skin of the aircraft.
Subtask 52-42-23-820-050-B ** ON A/C NOT FOR ALL (1) Carefully close and lock the access door (1).
(2) Make sure that the values of the permitted contour offset and the clearance between the access door (1) and the panel 198BB are in the limits.
Adjustment of the Ground Service Panel Door of the Yellow Hydraulic System ** ON A/C NOT FOR ALL Adjustment of the Ground Service Panel Door of the Yellow Hydraulic System ** ON A/C NOT FOR ALL (a) Remove the access panel 198BB as necessary (Ref. AMM TASK 53-35-13-000-002).
(b) Loosen the screws (31).
(c) Adjust the latch hook (30) until you get the correct values.
(d) Tighten the screws (31).
(4) Make sure that it is possible to open and close the access door (1) correctly.
(5) Make sure that the latch assembly is correctly locked and that the access door (1) makes a continues surface with the skin of the aircraft.
B. Adjustment of the Ground Service Panel Door of the Yellow Hydraulic System
(1) Carefully close and lock the access door (1).
(2) Make sure that the values of the permitted contour offset and the clearance between the access door (1) and the panel 198KB are in the limits.
(3) If it is necessary to adjust the access door (1):
(a) Remove the access panel 198KB as necessary (Ref. AMM TASK 53-35-13-000-002).
(b) Loosen the screws (31).
(c) Adjust the latch hook (30) until you get the correct values.
(d) Tighten the screws (31).
(4) Make sure that it is possible to open and close the access door (1) correctly.
(5) Make sure that the latch assembly is correctly locked and that the access door (1) makes a continues surface with the skin of the aircraft.
5. Close-up(1) Carefully close and lock the access door (1).
(2) Make sure that the values of the permitted contour offset and the clearance between the access door (1) and the panel 198KB are in the limits.
(3) If it is necessary to adjust the access door (1):
(a) Remove the access panel 198KB as necessary (Ref. AMM TASK 53-35-13-000-002).
(b) Loosen the screws (31).
(c) Adjust the latch hook (30) until you get the correct values.
(d) Tighten the screws (31).
(4) Make sure that it is possible to open and close the access door (1) correctly.
(5) Make sure that the latch assembly is correctly locked and that the access door (1) makes a continues surface with the skin of the aircraft.
Subtask 52-42-23-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If removed, install the access panel 198BB (Ref. AMM TASK 53-35-13-400-002).
(3) Remove the access platform(s).
Subtask 52-42-23-410-050-B ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) If removed, install the access panel 198BB (Ref. AMM TASK 53-35-13-400-002).
(3) Remove the access platform(s).
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If removed, install the access panel 198KB (Ref. AMM TASK 53-35-13-400-002).
(3) Remove the access platform(s).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If removed, install the access panel 198KB (Ref. AMM TASK 53-35-13-400-002).
(3) Remove the access platform(s).