W DOC AIRBUS | AMM A320F

Installation of the Power Supply Unit - Sharklet

TASK 33-48-38-400-802-A
Installation of the Power Supply Unit - Sharklet

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.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 534
ZONE: 634
FIN: 14LV ** ON A/C NOT FOR ALL
FIN: 15LV ** ON A/C NOT FOR ALL
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
ACCESS PLATFORM 4M (13 FT)
No specific
AR
SAFETY BARRIER(S)
No specific
1
SCRAPER - NON METALLIC
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.28 and 0.22 m.daN (24.78 and 19.47 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.06AAC1)
Polysulfide Sealant-General Purpose Interfay -
(Material No.06ACB1)
Polysulfide Sealant-Low Density Multi Purpose Fillet -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
534
WING TIP
634
WING TIP
FOR [14LV] (PSU)
634CB
FOR [15LV] (PSU)
534CB
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 20-28-00-912-802-A
Electrical Bonding - General Maintenance Procedure
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
TASK 33-48-00-710-002-A
Operational Test of the Anti-Collision/Strobe Lighting
F Strobe Light PSU - Sharklet - Access ** ON A/C NOT FOR ALL
F Strobe Light PSU - Sharklet - Location and Detail ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 33-48-38-941-055-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) Make sure that the SAFETY BARRIER(S) are in position.
   (2) Make sure that the WARNING NOTICE(S) in on panel 25VU to tell persons not to operate the strobe lights or the navigation lights.
   (3) Make sure that the ACCESS PLATFORM 4M (13 FT)is position below the zone 534(634).
Subtask 33-48-38-865-056-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
122VULIGHTING/EXT LT/NAV2/AND LOGO/LT2LAT02
122VULIGHTING/WING/STROBE10LVV05
** ON A/C NOT FOR ALL
122VULIGHT/EXT LT NAV1/AND LOGO/LT1LAT03
** ON A/C NOT FOR ALL
122VULIGHTING/EXT LT/NAV1/AND LOGO/LT1LAT03
Subtask 33-48-38-860-051-A ** ON A/C NOT FOR ALL
C. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are de-energized
(Ref. AMM TASK 24-41-00-862-002).
4. Procedure
Subtask 33-48-38-420-052-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
   (1) Use a SCRAPER - NON METALLIC to remove unwanted sealant from the power supply unit (2), the washers (3) and (5) and the bolts (4) and (6).
   (2) Clean the component interface and/or the adjacent area with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
   (3) Prepare for electrical bonding (Ref. AMM TASK 20-28-00-912-802).
   (4) Make sure that the parts retained from the removed component are clean and in the correct condition.
   (5) Do an inspection of the component interfaces and the adjacent area.
Subtask 33-48-38-420-053-A ** ON A/C NOT FOR ALL
B. Installation of the Power Supply Unit
   (1) Put the power supply unit (2) in the correct position. For this, align the six holes.
   (2) Install the washers (3) and the bolts (4).
   (3) Install the washer (5) and the bolt (6) (Ref. AMM TASK 20-28-00-912-802).
   (4) Apply a layer of Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) or Polysulfide Sealant-Low Density Multi Purpose Fillet - (Material No.06ACB1) on the bolts (4) and (6) and the washers (3) and (5).
   (5) Remove the CAP-BLANKING from each electrical connector and receptacle.
   (6) Refer to the labels made during the removal procedure, and connect the electrical connectors (1) to the power supply unit (2).
Subtask 33-48-38-865-057-A ** ON A/C NOT FOR ALL
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
122VULIGHTING/EXT LT/NAV2/AND LOGO/LT2LAT02
122VULIGHTING/WING/STROBE10LVV05
** ON A/C NOT FOR ALL
122VULIGHT/EXT LT NAV1/AND LOGO/LT1LAT03
** ON A/C NOT FOR ALL
122VULIGHTING/EXT LT/NAV1/AND LOGO/LT1LAT03
Subtask 33-48-38-710-051-A ** ON A/C NOT FOR ALL
D. Test
WARNING: DO NOT LOOK DIRECTLY AT THE LIGHT FLASH DURING THE TEST. SUPPLY A COVER, OR SHIELD, TO GIVE PROTECTION FROM THE LIGHT FLASH TO PERSONS IN THE TEST AREA.
   (1) Do the applicable operational test of the strobe light (Ref. AMM TASK 33-48-00-710-001) or (Ref. AMM TASK 33-48-00-710-002).
5. Close-up
Subtask 33-48-38-410-051-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) Clean the component interface and/or the adjacent area with the clean Textile-Lint free Cotton - (Material No.14SBA1) and Non Aqueous Cleaner-General - - (Material No.08BAA9) .
   (3) Install the access panel (1):
     (a) FOR [15LV] (PSU)
     (b) FOR [14LV] (PSU)
     (c) Put the access panel (1) in position.
     (d) Install the screws (2) in the correct position. For this, refer to the labels made during the removal procedure.
     (e) TORQUE the screws (2) to between 0.28 and 0.22 m.daN (24.78 and 19.47 lbf.in ) T.
   (4) Apply a layer of Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) or Polysulfide Sealant-Low Density Multi Purpose Fillet - (Material No.06ACB1) in the space between the sharklet and:
  • The outboard side of the access panel
  • The forward side of the access panel.
Subtask 33-48-38-942-053-A ** ON A/C NOT FOR ALL
B. Removal of Equipment
   (1) Remove the safety barriers.
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the access platform(s).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 00:56:48 UTC
"Aviabrain" 2025