W DOC AIRBUS | AMM A320F

General Visual Inspection of Inner Fixed Structure Fire Seals, Thermal Blanket and Thrust Reverser Fire Shields [CFML]

TASK 78-32-62-210-801-A
General Visual Inspection of Inner Fixed Structure Fire Seals, Thermal Blanket and Thrust Reverser Fire Shields

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 210
ZONE: 400
1. Reason for the Job
Refer to the MPD TASK: 783200-L2
GENERAL VISUAL INSPECTION OF INNER FIXED STRUCTURE FIRE SEALS, THERMAL BLANKET AND THRUST REVERSER FIRE SHIELDS.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 1M(3 FT)
No specific
AR
WARNING NOTICE(S)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CPNCL00963)
silicone adhesive sealant-high temp. area one part paste
(Material No.CPNCL02069)
textile - lint free cotton
(Material No.CPNCL02589)
diestone DLS
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
TASK 78-30-00-040-807-A
Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-30-00-440-807-A
Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
TASK 78-32-62-000-801-A
Removal of the Thrust Reverser Thermal Blankets
TASK 78-32-62-400-801-A
Installation of the Thrust Reverser Thermal Blankets
TASK 78-32-65-000-802-A
Removal of the Inner and Outer Fixed Structure Seals
TASK 78-32-65-400-802-A
Installation of the Inner and Outer Fixed Structure Seals
TASK 78-36-00-010-806-A
Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A
Closing of the Thrust Reverser Cowl Doors
NSRM 543056
NSRM 543061
F General Visual Inspection (GVI) of the Thermal Blankets ** ON A/C NOT FOR ALL
F General Visual Inspection (GVI) of the Thermal Blankets ** ON A/C NOT FOR ALL
F General Visual Inspection (GVI) of the Fire Shields
F General Visual Inspection (GVI) of the Inner-Fixed Structure-Fire Seals
3. Job Set-up
Subtask 78-32-62-941-050-A
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Make sure that the ENG/MODE selector switch is in the NORM position.
     (b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
     (c) Put WARNING NOTICE(S) in position to tell persons not to operate:
  • The ENG/MODE selector switch
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 78-32-62-010-050-A
B. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
   (2) Put the ACCESS PLATFORM 1M(3 FT) in position.
Subtask 78-32-62-040-050-A
C. Deactivation of the Thrust Reverser System for Maintenance
WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
   (1) Do the deactivation of the thrust reverser system for nacelle maintenance (Ref. AMM TASK 78-30-00-040-807).
Subtask 78-32-62-010-051-A
D. Get Access
   (1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR.
4. Procedure
Subtask 78-32-62-210-050-A ** ON A/C NOT FOR ALL
A. General Visual Inspection (GVI) of the Thermal Blankets
F General Visual Inspection (GVI) of the Thermal Blankets ** ON A/C NOT FOR ALL
NOTE: This procedure is given for one thermal blanket (1). It is also applicable to the other thermal blankets (2) thru (19).
NOTE: If necessary, clean the thermal blanket (1) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
   (1) Do a visual inspection of the thermal blanket (1) for:
  • Dent
  • Perforation
  • Incorrect installation
  • Bent edges.
   (2) If you find damage (dents or perforation) NSRM 543061.
   (3) If you find incorrect installation and/or bent edges, re-install or replace the thermal blanket (Ref. AMM TASK 78-32-62-000-801) and (Ref. AMM TASK 78-32-62-400-801).
Subtask 78-32-62-210-050-B ** ON A/C NOT FOR ALL
A. General Visual Inspection (GVI) of the Thermal Blankets
F General Visual Inspection (GVI) of the Thermal Blankets ** ON A/C NOT FOR ALL
NOTE: This procedure is given for one thermal blanket (1). It is also applicable to the other thermal blankets (2) thru (15).
NOTE: If necessary, clean the thermal blanket (1) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
   (1) Do a visual inspection of the thermal blanket (1) for:
  • Dent
  • Perforation
  • Incorrect installation
  • Bent edges.
   (2) If you find damage (dents or perforation) NSRM 543061.
   (3) If you find incorrect installation and/or bent edges, re-install or replace the thermal blanket (Ref. AMM TASK 78-32-62-000-801) and (Ref. AMM TASK 78-32-62-400-801).
Subtask 78-32-62-210-051-A
B. GVI of the Fire Shields
F General Visual Inspection (GVI) of the Fire Shields
NOTE: This procedure is given for one fire shield (1). It is also applicable to the other fire shields (2) thru (20), (27) thru (35) and (42) thru (49).
   (1) Do a visual inspection of the fire shield (1) for:
  • Nicks
  • Cracks
  • Scratches
  • Gouges
  • Missing fasteners.
   (2) If you find damage (nicks, scratches and gouges) NSRM 543061.
   (3) If you find cracks or missing fasteners, contact SAFRAN Nacelles.
Subtask 78-32-62-210-053-A
C. GVI of the Fire Shields
F General Visual Inspection (GVI) of the Fire Shields
NOTE: This procedure is given for one fire shield (21). It is also applicable to the other fire shields (21) thru (26) and (36) thru (41).
   (1) Do a visual inspection of the fire shield (21) for:
  • Nicks
  • Cracks
  • Scratches
  • Gouges
  • Missing fasteners.
   (2) If you find damage (nicks, scratches and gouges) NSRM 543056.
   (3) If you find cracks or missing fasteners, contact SAFRAN Nacelles.
Subtask 78-32-62-210-052-A
D. GVI of the Inner-Fixed Structure-Fire Seals
F General Visual Inspection (GVI) of the Inner-Fixed Structure-Fire Seals
NOTE: If necessary, clean the inner-fixed structure-fire seals (1) and (2) with textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
   (1) Do a visual inspection of the inner-fixed structure-fire seal (1) for:
NOTE: This procedure is given for the one fire seal (1). It is also applicable to the fire seal (21).
  • Damage
  • Tear
  • Cracks
  • Wear
  • Missing part.
     (a)
F General Visual Inspection (GVI) of the Inner-Fixed Structure-Fire Seals
     (b) If damage is in the allowable damage limits, apply silicone adhesive sealant-high temp. area one part paste (Material No.CPNCL00963) on the damaged area to restore the inner-fixed structure seal (1) shape.
       1 The inner-fixed structure seal (1) must be replaced at the next maintenance visit, before 36 months, 12000 flight hours or 8000 flight cycles, whichever occurs first.
     (c) If the damage is above the allowable damage limits, replace the inner-fixed structure seal (1) (Ref. AMM TASK 78-32-65-000-802) and (Ref. AMM TASK 78-32-65-400-802).
   (2) Do a visual inspection of the inner-fixed structure-fire seal (2) for:
NOTE: This procedure is given for the one fire seal (2). It is also applicable to the other fire seals (3) thru (20) and (22) thru (37).
  • Damage
  • Tear
  • Cracks
  • Wear
  • Missing part.
     (a) If you find damage, replace the inner-fixed structure seal (2) (Ref. AMM TASK 78-32-65-000-802) and (Ref. AMM TASK 78-32-65-400-802).
5. Close-up
Subtask 78-32-62-410-050-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR.
Subtask 78-32-62-440-050-A
B. Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 78-32-62-410-051-A
C. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR.
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 03:36:34 UTC
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