W DOC AIRBUS | AMM A320F

Detailed Inspection of the Thrust Reverser, Hinge Fittings and Surrounding Structure (150 mm around Hinge Fittings) [CFML]

TASK 78-32-00-220-805-A
Detailed Inspection of the Thrust Reverser, Hinge Fittings and Surrounding Structure (150 mm around Hinge Fittings)

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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.
ZONE: 400
1. Reason for the Job
Refer to the MPD TASK: 783221-01
DETAILED INSPECTION OF THRUST REVERSER, HINGE FITTINGS AND SURROUNDING STRUCTURE (150MM AROUND HINGE FITTINGS).
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
1
LIGHT SOURCE - HIGHPOWER
No specific
1
MAGNIFYING GLASS POWER 10X
No specific
AR
WARNING NOTICE(S)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CPNCL02069)
LINT-FREE COTTON CLOTH
(Material No.CPNCL02589)
GENERAL CLEANING AGENT - MULTI PURPOSE
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 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 78-36-45-000-801-A
Removal of the Thrust Reverser Hinge Access Panels
TASK 78-36-45-400-801-A
Installation of the Thrust Reverser Hinge Access Panels
NSRM 543054
NSRM 543056
F Detailed Inspection of the Thrust Reverser, Hinge Fittings and Surrounding Structure (150 mm around Hinge Fittings)
3. Job Set-up
Subtask 78-32-00-941-119-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 a 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 78-32-00-010-178-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
Subtask 78-32-00-040-118-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 78-32-00-010-179-A
D. Get Access
   (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
   (2) Remove the thrust reverser hinge access panel (Ref. AMM TASK 78-36-45-000-801).
4. Procedure
Subtask 78-32-00-220-060-A
A. Detailed Inspection of the Thrust Reverser, Hinge Fittings and Surrounding Structure (150 mm around Hinge Fittings)
NOTE: This procedure is given for the left thrust reverser 12 o'clock beam and hinges. It is also applicable to the right thrust reverser 12 o'clock beam and hinges.
NOTE: You can use the MAGNIFYING GLASS POWER 10X and the LIGHT SOURCE - HIGHPOWER.
   (1) Make sure that the inspection area is sufficiently clean to do the inspection satisfactorily as per the specified inspection standards.
   (2) Clean the parts with the LINT-FREE COTTON CLOTH (Material No.CPNCL02069) made moist with GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) , if necessary.
   (3) Do the detailed inspection in the hinge fitting No 1 area and surrounding structure.
     (a) Do the detailed inspection of the parts that follow:
  • Beam 12 o'clock (1)
  • R1 floating rod (2)
  • Hinge pin (3)
  • Bearing R1 (4)
  • Bushings (5)
  • Washer (6)
  • Nut (7)
  • Vee blade 12 o'clock (8)
  • Fitting shim 12 o'clock (9)
  • Fire wall (10)
  • Fire shield (11).
     (b) Examine the condition of the parts which you can see.
     (c) Make sure that there are no signs of corrosion damage:
       1 If you find corrosion damage, contact SAFRAN Nacelles.
     (d) Make sure that there are no signs of the other damage (cracks, nicks, dents, scratches and gouges) on the beam 12 o'clock (1):
       1 If you find damage (nicks, scratches and gouges), refer to NSRM 543054.
       2 If you find damage (cracks and dents), contact SAFRAN Nacelles.
     (e) Make sure that there are no signs of other damage (wear, cracks, nicks, dents, scratches and gouges) on the vee blade 12 o'clock (8):
       1 If you find damage (wear), refer to NSRM 543056.
       2 If you find damage (cracks, nicks, dents, scratches and gouges), contact SAFRAN Nacelles.
     (f) Make sure that there are no signs of other damage on the remaining parts (cracks, nicks, dents, scratches and gouges):
       1 If you find damage (cracks, nicks, dents, scratches and gouges), contact SAFRAN Nacelles.
   (4) Do the detailed inspection in the hinge fitting No 2 area and surrounding structure.
     (a) Do the detailed inspection of the parts that follow:
  • Beam 12 o'clock (1)
  • R2 floating rod (12)
  • Hinge pin (13)
  • Bearing R2 (14)
  • Bushings (15)
  • Washer (16)
  • Nut (17).
     (b) Examine the condition of the parts which you can see.
     (c) Make sure that there are no signs of corrosion damage:
       1 If you find corrosion damage, contact SAFRAN Nacelles.
     (d) Make sure that there are no signs of other damage (cracks, nicks, dents, scratches and gouges) on the beam 12 o'clock (1):
       1 If you find damage (nicks, scratches or gouges), refer to NSRM 543054.
       2 If you find damage (cracks and dents), contact SAFRAN Nacelles.
     (e) Make sure that there are no signs of other damage on the remaining parts (cracks, nicks, dents, scratches and gouges):
       1 If you find damage (cracks, nicks, dents, scratches and gouges), contact SAFRAN Nacelles.
   (5) Do the detailed inspection in the hinge fitting No 3 area and surrounding structure.
     (a) Do the detailed inspection of the parts that follow:
  • Beam 12 o'clock (1)
  • Reverser hinge fitting at Rib 3 (18)
  • Hinge pin (19)
  • Bearing R3 (20)
  • Bushings (21)
  • Washer (22)
  • Nut (23).
     (b) Examine the condition of the parts which you can see.
     (c) Make sure that there are no signs of corrosion damage:
       1 If you find corrosion damage, contact SAFRAN Nacelles.
     (d) Make sure that there are no signs of other damage (cracks, nicks, dents, scratches and gouges) on the beam 12 o'clock (1):
       1 If you find damage (nicks, scratches or gouges), refer to NSRM 543054.
       2 If you find damage (cracks and dents), contact SAFRAN Nacelles.
     (e) Make sure that there are no signs of other damage on the remaining parts (cracks, nicks, dents, scratch and gouges):
       1 If you find damage (cracks, nicks, dents, scratches and gouges), contact SAFRAN Nacelles.
   (6) Do the detailed inspection in the hinge fitting No 4 area and surrounding structure.
     (a) Do the detailed inspection of the parts that follow:
  • Beam 12 o'clock (1)
  • Reverser hinge fitting at Rib 4 (24)
  • Hinge pin (25)
  • Bearing R4 (26)
  • Bushings (27)
  • Washer (28)
  • Nut (29).
     (b) Examine the condition of the parts which you can see.
     (c) Make sure that there are no signs of corrosion damage:
       1 If you find corrosion damage, contact SAFRAN Nacelles.
     (d) Make sure that there are no signs of other damage (cracks, nicks, dents, scratches and gouges) on the beam 12 o'clock (1):
       1 If you find damage (nicks, scratches or gouges), refer to NSRM 543054.
       2 If you find damage (cracks and dents), contact SAFRAN Nacelles.
     (e) Make sure that there are no signs of other damage on the remaining parts (cracks, nicks, dents, scratches and gouges):
       1 If you find damage (cracks, nicks, dents, scratches and gouges), contact SAFRAN Nacelles.
5. Close-up
Subtask 78-32-00-410-165-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the thrust reverser hinge access panel (Ref. AMM TASK 78-36-45-400-801).
Subtask 78-32-00-440-110-A
B. Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 78-32-00-410-166-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 03:35:44 UTC
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