W DOC AIRBUS | AMM A320F

Special Detailed Inspection (LFEC) of Lower Skin of Longitudinal Lap Joints at Stringer 18, between FR 35 (A319/A320) and FR 47 (A320)/ FR 47/51 (A319) ...


TASK 53-31-00-220-812-A
Special Detailed Inspection (LFEC) of Lower Skin of Longitudinal Lap Joints at Stringer 18, between FR 35 (A319/A320) and FR 47 (A320)/ FR 47/51 (A319) ...


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: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
WARNING: YOU MUST PUT ON AND ATTACH A SAFETY HARNESS BEFORE YOU START WORK:
  • ON THE THS OR IN THE REAR FUSELAGE
  • ON TOP OF THE WINGS OR PYLONS.
WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION: DO NOT APPLY TEMPORARY PROTECTION SYSTEM (TPS) ON THE INSPECTION AREA. IF YOU APPLY TPS ON THE INSPECTION AREA, YOU CAN CAUSE DAMAGE TO THE AIRCRAFT.
ZONE: 240
1. Reason for the Job
Refer to the MPD TASK: 533127-01
SPECIAL DETAILED INSPECTION (LFEC) OF LOWER SKIN OF LONGITUDINAL LAP JOINTS AT STRINGER 18, BETWEEN FR 35 (A319/A320) AND FR 47 (A320) / FR 47/51 (A319) / FR 47/54 (A318), EXTERNAL SURFACE, LH/RH.
NOTE: The effectivity of this task is "ALL". To know if this task is applicable to youThe information on weight variant groups is given in the MPD and SRM introductio
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
240
MID PASSENGER COMPARTMENT
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 51-78-00-916-001-A
Application of Temporary Protection System (TPS)
SRM 511100
SRM 512200
SRM 512300
NTM 533127
SRM 512300
(for corrective action)
SRM 512400
(for corrective action)
3. Job Set-up
Subtask 53-31-00-010-140-A
A. Get Access
   (1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position below the inspection area.
Subtask 53-31-00-110-143-A
B. Preparation of the Inspection Area
   (1) Make sure that the inspection area is sufficiently clean to do a satisfactory inspection of the area.
   (2) If not, clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a Textile-Lint free Cotton - (Material No.14SBA1) .
   (3) Make sure that there is no TPS layer and if there is a TPS layer, remove it (Ref. AMM TASK 51-78-00-916-001).
   (4) Remove the sealant and/or paint from the inspection area if this is necessary for the Non-destructive Testing Manual (NTM) task.
4. Procedure
Subtask 53-31-00-220-077-A ** ON A/C NOT FOR ALL
A. Inspection
   (1) Do a special detailed inspection (LFEC) for damage and discontinuities on the left and the right sides of:
  • The external surface of the lower skin of the longitudinal lap joints at stringer 18, between FR 35 and FR 47 ( NTM 533127).
   (2) Make a report of the damage after the NTM inspection:
     (a) Corrosion damage:
If you find corrosion, refer to the Structural Repair Manual ( SRM 512200) for the corrosion types, inspection, removal and subsequent corrosion protection.
     (b) Other damage (scratches, cracks, gouges, dents, creases):
If you find this type of damage, refer to the Structural Repair Manual ( SRM 511100) for the damage types, classification and corrective action.
     (c) Paint layer damage:
If you find this type of damage, refer to the Structural Repair Manual ( SRM 512300) for general data for paint layers.
Subtask 53-31-00-220-077-B ** ON A/C NOT FOR ALL
A. Inspection
   (1) Do a special detailed inspection (LFEC) for damage and discontinuities on the left and the right sides of:
  • The external surface of the lower skin of the longitudinal lap joints at stringer 18, between FR 35.8 and FR 47 ( NTM 533127).
   (2) Make a report of the damage after the NTM inspection:
     (a) Corrosion damage:
If you find corrosion, refer to the Structural Repair Manual ( SRM 512200) for the corrosion types, inspection, removal and subsequent corrosion protection.
     (b) Other damage (scratches, cracks, gouges, dents, creases):
If you find this type of damage, refer to the Structural Repair Manual ( SRM 511100) for the damage types, classification and corrective action.
     (c) Paint layer damage:
If you find this type of damage, refer to the Structural Repair Manual ( SRM 512300) for general data for paint layers.
Subtask 53-31-00-220-077-C ** ON A/C NOT FOR ALL
A. Inspection
   (1) Do a special detailed inspection (LFEC) for damage and discontinuities on the left and the right sides of:
  • The external surface of the lower skin of the longitudinal lap joints at stringer 18, between FR 35 and FR 47/51 ( NTM 533127).
   (2) Make a report of the damage after the NTM inspection:
     (a) Corrosion damage:
If you find corrosion, refer to the Structural Repair Manual ( SRM 512200) for the corrosion types, inspection, removal and subsequent corrosion protection.
     (b) Other damage (scratches, cracks, gouges, dents, creases):
If you find this type of damage, refer to the Structural Repair Manual ( SRM 511100) for the damage types, classification and corrective action.
     (c) Paint layer damage:
If you find this type of damage, refer to the Structural Repair Manual ( SRM 512300) for general data for paint layers.
Subtask 53-31-00-916-080-A
B. Sealant or Paint Application
   (1) If the NTM procedure asked to remove the sealant and/or paint from the inspection area, apply sealant ( SRM 512400) or paint ( SRM 512300) on the inspection area.
5. Close-up
Subtask 53-31-00-410-137-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).
   (3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.02 06:29:08 UTC