W DOC AIRBUS | AMM A320F

Installation of the Upper Beacon/Strobe Light from the Inside of the Fuselage

TASK 33-48-11-400-002-A
Installation of the Upper Beacon/Strobe Light from the Inside of the Fuselage

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 7LV
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
STEPLADDER 1.5 M (5 FT)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.04TMB2)
Varnish-- Electrical Bonding Structure
(Material No.05BAE1)
Threadlocking Adhesive-- Medium strength -
(Material No.06AAA1)
Polysulfide Sealant_General Purpose Brushable -
(Material No.12ABC1)
Corrosion Preventive Compound_Water Displacing Soft Film -
(Material No.12ACB1)
Corrosion Preventive Compound-Heavy Duty Hard Film -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
241CC
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
4
O-RING
AIPC 33-48-04-01-090
6
ORING
AIPC 33-48-04-01-090
12
SEAL
AIPC 33-48-11-01-040
6
ORING
AIPC 33-48-84-01-100
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 20-28-00-912-802-A
Electrical Bonding - General Maintenance Procedure
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 25-23-41-000-001-A
Removal of the Ceiling Panels
TASK 25-23-41-400-001-A
Installation of the Ceiling Panels
TASK 33-48-00-710-001-A
Operational Test of the Anti-Collision Lighting
F Upper Beacon/Strobe Light 7LV ** ON A/C NOT FOR ALL
F Upper Beacon/Strobe Light 7LV ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 33-48-11-860-054-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the stepladder is in position below ceiling panel 241CC.
   (2) Make sure that ceiling panel 241CC is removed.
   (3) Make sure that switch 2LV BEACON ON-OFF on overhead panel 25VU is in the OFF position.
   (4) Make sure that switch 4WL EMER EXIT LT OFF-ARM-ON on overhead panel 25VU is in the OFF position.
   (5) Make sure that the pushbutton EMERG LIGHT on Forward Attendant Panel (FAP) 120RH is in the released position.
Subtask 33-48-11-860-054-B ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the STEPLADDER 1.5 M (5 FT) is in position below the center ceiling panel 241CC.
   (2) Make sure that the ceiling panel 241CC is removed (Ref. AMM TASK 25-23-41-000-001).
   (3) Make sure that the switch 2LV BEACON ON-OFF on the overhead panel 25VU is in the OFF position.
   (4) Make sure that the switch 4WL EMER EXIT LT OFF-ARM-ON on the overhead panel 25VU is in the OFF position.
   (5) Make sure that the EMER button on the Flight Attendant Panel (FAP) 120RH is OFF.
Subtask 33-48-11-865-055-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
122VULIGHTING/EXT LT/BEACON/UPPER1LVU06
4. Procedure
Subtask 33-48-11-420-052-B ** ON A/C NOT FOR ALL
A. Installation of Upper Beacon/Strobe Light 7LV
F Upper Beacon/Strobe Light 7LV ** 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) Prepare the electrical bonding point at the flange (3) (Ref. AMM TASK 20-28-00-912-802).
   (4) Put the light assembly (2) and the seal (12) in the correct installation position on the moveable part of the flange (3):
     (a) Make sure that the seal (12) is in good condition.
     (b) If necessary, install the new AIPC 33-48-11-01-040 SEAL (12).
   (5) Loosely install the screws (5).
   (6) Tighten the screws (5) in the correct sequence.
   (7) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the heads of the screws (5) (Ref. AMM TASK 20-28-00-912-802) and let it dry.
   (8) Apply Varnish-- Electrical Bonding Structure (Material No.04TMB2) to the heads of the screws (5) to make the electrical bonding.
   (9) Put the O-ring (4) and the movable part of the flange (3) in the correct installation position:
     (a) Make sure that the O-ring (4) is in good condition.
     (b) If necessary, install the new AIPC 33-48-04-01-090 O-RING (4).
   (10) Put and hold the moveable part of the flange (3) in the correct installation position.
   (11) Install the V-clamp (6).
   (12) Tighten the screw (7).
   (13) Safety the screw (7) with Threadlocking Adhesive-- Medium strength - (Material No.05BAE1) .
   (14) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
   (15) Connect the electrical connector (1) to the light assembly (2).
Subtask 33-48-11-420-052-C ** ON A/C NOT FOR ALL
A. Installation of Upper Beacon/Strobe Light 7LV
F Upper Beacon/Strobe Light 7LV ** 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) Prepare the electrical bonding point at the flange (7) (Ref. AMM TASK 20-28-00-912-802).
   (4) Apply Corrosion Preventive Compound_Water Displacing Soft Film - (Material No.12ABC1) and Corrosion Preventive Compound-Heavy Duty Hard Film - (Material No.12ACB1) to the heads of the screws (4) to make the electrical bonding.
   (5) Put the LED module (5) in the correct installation position on the flange (7).
   (6) Loosely install the screws (4).
   (7) Tighten the screws (4) in the correct sequence.
   (8) Install the O-ring (6) on the flange (7):
     (a) Make sure that the O-ring (6) is in good condition.
     (b) If necessary, install a new AIPC 33-48-04-01-090 ORING (6) or AIPC 33-48-84-01-100 ORING (6) on the flange (7).
   (9) Put and hold the flange (7) in the correct installation position.
   (10) Install the clamp (10).
   (11) Tighten the screw (9) of the clamp (10).
   (12) Safety the screw (9) with Threadlocking Adhesive-- Medium strength - (Material No.05BAE1) .
   (13) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
   (14) Connect the electrical connector (8) to the LED module (5).
Subtask 33-48-11-860-053-A
B. Preparation for the Test
WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.
   (1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).
Subtask 33-48-11-865-056-A
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
122VULIGHTING/EXT LT/BEACON/UPPER1LVU06
Subtask 33-48-11-710-051-A
D. Operational Test
   (1) Do the operational test of the upper beacon/strobe light (7LV) (Ref. AMM TASK 33-48-00-710-001).
5. Close-up
Subtask 33-48-11-410-051-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the center ceiling panel (Ref. AMM TASK 25-23-41-400-001).
   (3) Remove the stepladder.
Subtask 33-48-11-862-054-A
B. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 00:56:24 UTC
"Aviabrain" 2025