W DOC AIRBUS | AMM A320F

Inspection of the Forward Fairings

TASK 54-52-00-200-001-A
Inspection of the Forward Fairings

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.
ZONE: 410
ZONE: 420
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
410
ENG 1 PYLON BOX AND FORWARD FAIRING
420
ENG 2 PYLON BOX AND FORWARD FAIRING
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B
Make the Thrust Reverser Unserviceable for Maintenance
F Cracks, Nicks and Scores in the Forward Fairings ** ON A/C NOT FOR ALL
F Cracks, Nicks and Scores in the Forward Fairings ** ON A/C NOT FOR ALL
F Cracks, Nicks and Scores in the Forward Fairings ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 54-52-00-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on the ENG panel 115VU:
     (a) Put a warning notice to tell persons not to start the engine.
   (2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
   (3) On the overhead maintenance panel 50VU:
     (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put a warning notice to tell persons not to energize the FADEC 1(2).
Subtask 54-52-00-040-050-A ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).
Subtask 54-52-00-040-050-B ** ON A/C NOT FOR ALL
B. Aircraft Maintenance Configuration
Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-040-012).
Subtask 54-52-00-941-051-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position:
     (a) in the zone 410 for the left pylon,
     (b) in the zone 420 for the right pylon.
4. Procedure
Subtask 54-52-00-220-050-A ** ON A/C NOT FOR ALL
A. Inspection of the Forward Fairings
F Cracks, Nicks and Scores in the Forward Fairings ** ON A/C NOT FOR ALL
F Cracks, Nicks and Scores in the Forward Fairings ** ON A/C NOT FOR ALL
F Cracks, Nicks and Scores in the Forward Fairings ** ON A/C NOT FOR ALL
   (1) do the inspection of the forward fairings:
     (a) For cracks, nicks and scores:
       1 Do a blending or burnishing operation,
       2 Make sure that the length and the depth of the cracks, the nicks or the scores are in the permitted limits,
       3 Permitted damage on corrosion resistant steel as follows:
  • Zone 1 : Permitted damage without repair
  • Zone 2 : Repair this damage before 6000 flights
  • Zone 3 : Repair this damage before 100 flights
  • Zone 4 : Repair this damage before 50 flights
    limit A for the pressure relief door
    limit B for all the other skins
  • Zone 5 : Return to repair.
     (b) For dents and holes:
       1 The depth of dents must not be more than 2% of the minimum width. Maximum depth is 2 mm (0.0787 in.) and maximum area is 10 cm2 (1.55 in.2). If the dent is located near a stiffener, make sure that there are no cracks.
       2 Holes are not permitted.
5. Close-up
Subtask 54-52-00-440-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
Subtask 54-52-00-440-050-B ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-440-012).
Subtask 54-52-00-942-050-A ** ON A/C NOT FOR ALL
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 02:01:47 UTC
"Aviabrain" 2025