Installation of the Upper Beacon/Strobe Light from the Outside of the Fuselage
TASK 33-48-11-400-001-A
Installation of the Upper Beacon/Strobe Light from the Outside of the Fuselage
Self explanatory
2. Job Set-up Information
A. Consumable Materials
B. Expendable Parts
C. Referenced Information
3. Job Set-up
Subtask 33-48-11-860-052-A
Subtask 33-48-11-420-051-B ** ON A/C NOT FOR ALL
Subtask 33-48-11-410-052-A
[Rev.10 from 2021]
2026.04.01 00:56:22 UTC
Installation of the Upper Beacon/Strobe Light from the Outside 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 JobSelf explanatory
2. Job Set-up Information
A. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.04TMB2) | Varnish-- Electrical Bonding Structure |
| (Material No.05BAA1) | Threadlocking Adhesive-- Low strength - |
| (Material No.06AAA1) | Polysulfide Sealant_General Purpose Brushable - |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 6 | O-RING | AIPC 33-48-04-01-090 |
| 3 | SEAL | AIPC 33-48-11-01-020 |
| 8 | SEAL | AIPC 33-48-11-01-020 |
| 3 | SEAL | AIPC 33-48-11-01-030 |
| 8 | SEAL | AIPC 33-48-11-01-030 |
| 12 | SEAL | AIPC 33-48-11-01-040 |
| 3 | SEAL | AIPC 33-48-12-02-030 |
| 6 | ORING | AIPC 33-48-84-01-100 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-21-11-911-001-A | Tightening Torques for Standard Threaded Fasteners |
| 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 33-48-00-710-001-A | Operational Test of the Anti-Collision Lighting |
Subtask 33-48-11-860-052-A
A. Aircraft Maintenance Configuration
(1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Make sure that switch 2LV BEACON ON-OFF on overhead panel 25VU is in the OFF position.
Subtask 33-48-11-865-053-A (1) Make sure that the parts retained from the removed component are clean and in the correct condition.
(2) Make sure that switch 2LV BEACON ON-OFF on overhead panel 25VU is in the OFF position.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 122VU | LIGHTING/EXT LT/BEACON/UPPER | 1LV | U06 |
Subtask 33-48-11-420-051-B ** ON A/C NOT FOR ALL
A. Installation of Upper Beacon/Strobe Light 7LV
(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) Remove the CAP-BLANKING from each electrical connector and receptacle.
(6) Put the light assembly (2) and the seal (12) in the correct installation position:
(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).
(7) Loosely install the screws (5).
(8) Tighten the screws (5) in the correct sequence.
(9) 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.
(10) Apply Varnish-- Electrical Bonding Structure (Material No.04TMB2) to the heads of the screws (5) to make the electrical bonding.
(11) Make sure that the bung (10) is correctly installed in the lens (9).
(12) Put the lens (9) and the seal (8) in the correct installation position:
(a) Make sure that the seal (8) is in good condition.
(b) If necessary, install the new AIPC 33-48-11-01-020 SEAL (8) or AIPC 33-48-11-01-030 SEAL (8).
(13) Apply Threadlocking Adhesive-- Low strength - (Material No.05BAA1) to the threads of the screws (11).
(14) Loosely install the screws (11).
(15) Make sure that you refer to the match marks made during the removal procedure to install the screws (11) in the correct position.
(16) Tighten the screws (11) in the correct sequence.
(17) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the heads of the screws (11).
Subtask 33-48-11-420-051-C ** 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) 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.
(5) Connect the electrical connector (1) to the light assembly (2). (6) Put the light assembly (2) and the seal (12) in the correct installation position:
(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).
(7) Loosely install the screws (5).
(8) Tighten the screws (5) in the correct sequence.
(9) 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.
(10) Apply Varnish-- Electrical Bonding Structure (Material No.04TMB2) to the heads of the screws (5) to make the electrical bonding.
(11) Make sure that the bung (10) is correctly installed in the lens (9).
(12) Put the lens (9) and the seal (8) in the correct installation position:
(a) Make sure that the seal (8) is in good condition.
(b) If necessary, install the new AIPC 33-48-11-01-020 SEAL (8) or AIPC 33-48-11-01-030 SEAL (8).
(13) Apply Threadlocking Adhesive-- Low strength - (Material No.05BAA1) to the threads of the screws (11).
(14) Loosely install the screws (11).
(15) Make sure that you refer to the match marks made during the removal procedure to install the screws (11) in the correct position.
(16) Tighten the screws (11) in the correct sequence.
(17) Apply Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) to the heads of the screws (11).
A. Installation of the Upper Anti-Collision (Beacon) Light
(2) Clean the component interface and/or the adjacent area.
(3) Install the O-ring (6):
(a) Make sure that the O-ring (6) is in good condition.
(b) If necessary, install the new AIPC 33-48-04-01-090 O-RING (6) or AIPC 33-48-84-01-100 ORING (6).
(5) Put the LED module (5) on the flange (7).
(6) Loosely install the screws (4).
(7) Tighten the screws (4) in the sequence given in the figure.
(8) Apply the Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) on the heads of the countersunk screws (4) (Ref. AMM TASK 20-28-00-912-802) and let it dry.
(9) Apply the Varnish-- Electrical Bonding Structure (Material No.04TMB2) on the head of the countersunk screw (4) that is used to do the electrical bonding.
(10) Make sure that the lens drain plug is correctly installed in the new lens (2).
(11) Install the seal (3) as follows:
(a) Make sure that the seal (3) is in good condition.
(b) If necessary, install the new AIPC 33-48-11-01-020 SEAL (3) or AIPC 33-48-11-01-030 SEAL (3) or AIPC 33-48-12-02-030 SEAL (3).
(12) Put the lens (2) on the fuselage.
(13) Make sure that the pin (11) engages correctly in the bung (12).
(14) Install the countersunk screws (1).
(15) Refer to the match marks that you made during the removal to install the screws (1) in the correct position.
(16) Tighten the screws (1) in the sequence given in the figure.
Subtask 33-48-11-860-051-A NOTE: For the torque values of the screws, you can refer to (Ref. AMM TASK 20-21-11-911-001).
(1) Remove the tape from the related upper anti-collision (beacon) light. (2) Clean the component interface and/or the adjacent area.
(3) Install the O-ring (6):
(a) Make sure that the O-ring (6) is in good condition.
(b) If necessary, install the new AIPC 33-48-04-01-090 O-RING (6) or AIPC 33-48-84-01-100 ORING (6).
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.
(4) Connect the electrical connector (8) to the LED module (5). (5) Put the LED module (5) on the flange (7).
(6) Loosely install the screws (4).
(7) Tighten the screws (4) in the sequence given in the figure.
(8) Apply the Polysulfide Sealant_General Purpose Brushable - (Material No.06AAA1) on the heads of the countersunk screws (4) (Ref. AMM TASK 20-28-00-912-802) and let it dry.
(9) Apply the Varnish-- Electrical Bonding Structure (Material No.04TMB2) on the head of the countersunk screw (4) that is used to do the electrical bonding.
(10) Make sure that the lens drain plug is correctly installed in the new lens (2).
(11) Install the seal (3) as follows:
(a) Make sure that the seal (3) is in good condition.
(b) If necessary, install the new AIPC 33-48-11-01-020 SEAL (3) or AIPC 33-48-11-01-030 SEAL (3) or AIPC 33-48-12-02-030 SEAL (3).
(12) Put the lens (2) on the fuselage.
(13) Make sure that the pin (11) engages correctly in the bung (12).
(14) Install the countersunk screws (1).
(15) Refer to the match marks that you made during the removal to install the screws (1) in the correct position.
(16) Tighten the screws (1) in the sequence given in the figure.
B. Preparation for the Test
Subtask 33-48-11-865-054-A 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). C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 33-48-11-710-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 122VU | LIGHTING/EXT LT/BEACON/UPPER | 1LV | U06 |
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(1) Do the operational test of the upper beacon/strobe light (7LV) (Ref. AMM TASK 33-48-00-710-001).
Subtask 33-48-11-410-052-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
Subtask 33-48-11-862-055-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
Upper Beacon/Strobe Light 7LV