W DOC AIRBUS | AMM A320F

Installation of the Boot on the Radome


TASK 53-15-11-400-007-A
Installation of the Boot on the Radome


WARNING: BEFORE YOU REMOVE OR INSTALL THE BOOT ON THE RADOME INSTALLED ON THE AIRCRAFT, MAKE SURE THAT THE CIRCUIT BREAKERS RELATED TO THE WEATHER RADAR ARE OPEN, SAFETIED AND TAGGED. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY TO MAINTENANCE PERSONNEL AND/OR DAMAGE TO EQUIPMENT CAN OCCUR.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION: YOU MUST INSTALL THE BOOT IN A HANGAR. THIS WILL PREVENT AN INCORRECT BOND BETWEEN THE BOOT AND THE RADOME.
ZONE: 110
1. Reason for the Job
NOTE: The installation of the boot is permitted on the radomes that follow:
  • The Quartz radome (Part Number (P/N) D53132010000)
  • The S2-Glass radomes (P/N D53132110000 and P/N D53132210000).
NOTE: The boot can be installed on a radome installed on the aircraft or on a radome removed from the aircraft (the procedure is done in a hangar).
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
EDDY CURRENT COATING THICKNESS TOOL
No specific
1
GAGE-THICKNESS, PAINT BORER 518
No specific
1
MARKER - FELT TIP
No specific
AR
PAPER - ABRASIVE (GRADE 320)
No specific
AR
SCISSORS
No specific
AR
SQUEEGEE
No specific
AR
TAPE - MASKING
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.04SBA3)
Varnish Polyurethane-Low VOC - External Structure
(Material No.05RSB2)
Adhesive Film Tape-Radome Erosion Protective Polyurethane Radome boot
(Material No.08ABC1)
Aqueous Cleaner-Aircraft Exterior Pressure Spraying -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14FAB1)
Abrasive-- Scotch Brite Pads -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
110
RADOME (NOSE CONE TO FR 1)
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 53-15-11-000-001-A
Removal of the Radome
TASK 53-15-11-300-001-A
Repair of the Radome
TASK 53-15-11-400-001-A
Installation of the Radome
TASK 53-15-11-400-001-A-01
Installation of the Radome
F Boot Cutout for the Quartz Radome ** ON A/C NOT FOR ALL
F Masking Tape Application ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 53-15-11-869-058-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position in zone 110.
   (2) If necessary, make sure that the radome is removed (Ref. AMM TASK 53-15-11-000-001).
   (3) Make sure that the WARNING NOTICE(S) is(are) in position on the center pedestal to tell persons not to operate the radar system.
Subtask 53-15-11-865-076-A ** ON A/C NOT FOR ALL
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUCOM NAV/RADAR/15SQ1K13
** ON A/C NOT FOR ALL
121VUCOM NAV/RADAR/25SQ2K14
4. Procedure
Subtask 53-15-11-160-056-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
   (1) Clean the radome with the Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
   (2) If a boot was removed from the radome:
     (a) Remove the sealing varnish from the radome until the radome surface is smooth with the the PAPER - ABRASIVE (GRADE 320) or finer abrasive paper.
Subtask 53-15-11-220-056-B ** ON A/C NOT FOR ALL
B. Check of the External Paint Surface and the Paint Thickness on the Radome
   (1) Do a check of the external paint surface on the radome:
     (a) Make sure that the external paint surface is not damaged.
       1 Do a visual inspection of the external paint surface.
       2 Make sure that there is no paint peeling and paint erosion.
     (b) If the paint surface is damaged, remove the paint scheme from the radome and then apply a new paint scheme:
   (2) Do a check of the thickness of the final paint to make sure that it is in the specified tolerances:
NOTE: The installation of the boot on the radome has a radio-electrical effect.
     (a) Measure the thickness at the four points with the GAGE-THICKNESS, PAINT BORER 518 or with the Eddy current inspection method (for example, with the EDDY CURRENT COATING THICKNESS TOOL).
       1 Refer to the applicable figure to see the related four points.
       2 Measure the thickness of the top coat paint and, if applicable, the thickness of the clear coat (optional).
     (b) Make sure that the paint thickness is not more than the applicable values specified in the applicable table.
     (c) Make sure that the paint applied on the radome is an AIRBUS-qualified paint.
NOTE: Only one final paint scheme is approved. The boot installation on the MICA paint is not permitted. The maximum paint thickness is in relation to the paint color and the type of radome.
     (d) Refer to the table that follows for the specification of the maximum thickness of the final paint for top coat paint:
Type of radome (P/N)
White top coat
Black/gray to coat
Color top coat
MICA top coat
D53132010000
140 micrometer or 120 micrometer + 80 micrometer clear-coat
130 micrometer or 110 micrometer + 80 micrometer clear-coat
300 micrometer or 260 micrometer + 80 micrometer clear-coat
Installation of the boot not permitted
D53132110000 or D53132210000
170 micrometer or 150 micrometer + 80 micrometer clear-coat
170 micrometer or 150 micrometer + 80 micrometer clear-coat
340 micrometer or 290 micrometer + 80 micrometer clear-coat
Installation of the boot not permitted
     (e) Refer to the table that follows for the specification of the maximum thickness of the final paint for base coat / clear coat:
Type of radome (P/N)
White base coat
Black/gray base coat
Color base coat
MICA base coat
D53132010000:




- Mankiewicz:
210 micrometer (100 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
Installation of the boot not permitted
- PPG:
190 micrometer (80 micrometer base coat + 110 micrometer clear coat)
180 micrometer (70 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
Installation of the boot not permitted
- Other paint suppliers:
250 micrometer (140 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
Installation of the boot not permitted
D53132110000 or D53132210000




- Mankiewicz:
200 micrometer (90 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
Installation of the boot not permitted
- PPG:
190 micrometer (80 micrometer base coat + 110 micrometer clear coat)
180 micrometer (70 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
Installation of the boot not permitted
- Other paint suppliers:
240 micrometer (130 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
260 micrometer (150 micrometer base coat + 110 micrometer clear coat)
Installation of the boot not permitted
     (f) If the paint thickness is not in the tolerances, remove the paint scheme from all of the radome and then apply a new paint scheme:
     (g) On the radome, if the paint thickness measurement was done with the GAGE-THICKNESS, PAINT BORER 518 and if the paint thickness is in the tolerances, do a paint touch-up of the measured points:
Subtask 53-15-11-410-058-B ** ON A/C NOT FOR ALL
C. Put the boot in position on the radome.
CAUTION: OBEY A MINIMUM TIME INTERVAL OF 24 HOURS BETWEEN RADOME PAINTING AND BOOT INSTALLATION. THIS IS TO PREVENT AN INCORRECT BOND BETWEEN THE BOOT AND THE RADOME.
   (1) Clean the radome with the Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
   (2) Put the boot in position on the radome and make sure that the index marks align with the external lightning strips or lightning studs (the white liner is on the internal side):

     (a) Put the boot in position on the radome.
     (b) Use the points of the lightning strips to help balance the boot on the radome:
       1 For the radome with the external lightning strips:
         a Make marks to show the position of the lightning strips on the boot for the related cutouts.
         b Remove the boot from the radome.
         c Make the contour of the cutouts on the boot with the MARKER - FELT TIP.
F Boot Cutout for the Quartz Radome ** ON A/C NOT FOR ALL
         d Make sure that the cutout radius is approximately 10 mm (0.3937 in.) to prevent boot peeling.
         e Make cutouts on the boot with the SCISSORS.
         f Put the inner part of the boot out.
NOTE: The white liner is now on the external side.
       2 For the radome with the internal lightning strips:
         a Remove the boot from the radome and put the inner part of the boot out.
NOTE: The white liner is now on the external side.
NOTE: The boot will be installed on one or two lightning stud(s) for each lightning strip.
Subtask 53-15-11-420-062-B ** ON A/C NOT FOR ALL
D. Installation of the Boot
   (1) Apply Adhesive Film Tape-Radome Erosion Protective Polyurethane Radome boot (Material No.05RSB2) on the radome.
     (a) Temporarily put the boot on the radome:
CAUTION: WHEN YOU REMOVE THE LINER, USE THE RADOME AS A SUPPORT TO HOLD THE BOOT. IF YOU DO NOT OBEY THIS INSTRUCTION, THE BOOT WILL BOND TO ITSELF AND IT WILL BE NECESSARY TO INSTALL A NEW BOOT.
       1 Apply a solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) on the radome and the boot.
       2 Put the boot back on the radome (the white liner is on the external side).
       3 Lift the edge of the liner from the boot with the thumbnail to get a small part of adhesive.
       4 Apply the solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) on the adhesive.
       5 When you remove the remaining liner, continue to apply the solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) on the bare boot.
     (b) Remove the boot from the radome.
NOTE: The inner part of the radome stays out.
     (c) Apply a thick layer of solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) on the radome and the boot.
NOTE: This will make the installation of the boot easier.
NOTE: The application is easier if you use a large quantity of solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) .
     (d) Put the inner part of the boot on the radome.
  • Carefully begin with the center of the boot and unroll the boot.
  • Move the boot and apply the solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) until the boot is correctly installed.
       1 For the radome with the external lightning strips:
         a Make sure that the cutouts are aligned with the lightning strips.
         b When the boot is correctly installed, carefully cut the index marks.
       2 For the radome with the internal lightning strips:
CAUTION: BE CAREFUL NOT TO CUT THE BOOT AROUND THE LIGHTNING STUDS. IF YOU DO, YOU CAN CAUSE DAMAGE TO THE BOOT AND IT CAN BE NECESSARY TO INSTALL A NEW BOOT.
         a Make sure that the index marks at the top and sides of the boot are aligned with the lightning studs.
         b When the boot is correctly installed, carefully cut the index marks.
     (e) Make movements on a distance of 1-2 inches from the middle of the boot to the edges with the SQUEEGEE.
     (f) Do not apply too much pressure to the squeegee.
NOTE: This will remove the bubbles together with the remaining solution of water and 2% Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) .
     (g) Absorb the liquid at the edges of the boot with the Textile-Lint free Cotton - (Material No.14SBA1) .
NOTE: This helps the edge of the boot to stay attached to the surface of the radome.
     (h) Dry the surface of the boot with the clean Textile-Lint free Cotton - (Material No.14SBA1) .
Subtask 53-15-11-390-051-A ** ON A/C NOT FOR ALL
E. Apply the sealing varnish.

F Masking Tape Application ** ON A/C NOT FOR ALL
   (1) Put two strips of TAPE - MASKING along the boot edge, one on the boot and one on the radome, at 5 mm (0.197 in.) from the boot edge in each direction.
F Masking Tape Application ** ON A/C NOT FOR ALL
   (2) Abrade lightly the area between the two strips of TAPE - MASKING with the Abrasive-- Scotch Brite Pads - (Material No.14FAB1) .
   (3) Apply two or three layers of Varnish Polyurethane-Low VOC - External Structure (Material No.04SBA3) (compatible with the radome paint) all around the boot edge, between the two strips of TAPE - MASKING.
   (4) After you painted the boot edge:
     (a) Wait for 30 minutes in a clean area.
     (b) Remove the two strips of TAPE - MASKING.
NOTE: You can take the aircraft out of the hangar with no risk of dust or sand attached to the sealing varnish.
   (5) Wait for four hours after you applied the sealing varnish.
NOTE: The aircraft can operate because the sealing varnish will be fully dry.
5. Close-up
Subtask 53-15-11-400-050-A ** ON A/C NOT FOR ALL
A. If you removed the radome, install it (Ref. AMM TASK 53-15-11-400-001).
Subtask 53-15-11-865-077-A ** ON A/C NOT FOR ALL
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUCOM NAV/RADAR/15SQ1K13
** ON A/C NOT FOR ALL
121VUCOM NAV/RADAR/25SQ2K14
Subtask 53-15-11-942-066-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
   (4) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.02 07:24:46 UTC