TABLE OF CONTENT

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TABLE OF CONTENT
INTRODUCTION

• OVERHAUL PROCESS

DOCUMENT REQUIRED
TIME LINE
TOOLS
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I N T R O D U C T I O N
OVERHAUL PROCESS
DOCUMENTS REQUIRED
TOOL AND EQUIPMENT
TIME LINE
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INTRODUCTION

• The landing gear system on a conventional
• aircraft tricycle configuration consisting
  of
• a nose landing gear and left and right main
• landing gear.
• Each landing gear includes a shock strut
• with two wheel and tire assemblies.
• Each main landing gear wheel is equipped
• with a brake assembly with anti-skid
• protection and it is located in the lower
  left
• and right wing area adjacent to midfuselage.
• The nose landing gear is steerable and it is
• located in the lower forward fuselage.

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INTRODUCTION landing gear structure
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INTRODUCTION
OVERHAUL PROCESS
DOCUMENT REQUIRED
TOOL AND EQUIPMENT
TIME LINE
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OVERHAUL PROCESS
ENTRY
CLEANING
DISASSEMBLY
INSPECTION
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OVERHAUL PROCESS
REPAIR/REBUILT
ASSEMBLY
PACKING
TESTING
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STEP 1 Use digital pictures taken from all
aspects to provide a permanent record of what is
actually received. 
STEP 2 Disassemble into individual components
and the part numbers and serial numbers are
recorded.  The actual part numbers and serial
numbers are compared to the Trace paperwork
furnished by the customer.
STEP 3  Parts are cleaned and bushings removed
from those parts that have bushings.  All
bushings are removed and discarded.
OVERHAUL PROCESS
STEP 4  Paint is removed utilizing a blast
cabinet and the media used is plastic chips which
only remove the paint. The cadmium will be
removed later by chemical strip.
STEP 5 Parts are inspected and a detailed ICR
(incoming condition report) is made and compared
to the design allowances. The engineering
department after review of the ICR selects those
operations necessary to repair the part and
prints a routing for that specific part and
serial number. 
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STEP 5 Parts are non-destructive tested for
cracks by magnetic particle inspection or by
penetrant inspection. 
STEP 6 Parts are sent based on their specific
routing to the machine shop or plating as
required. Chrome-plated surfaces are inspected
and replated with the correct specification
process if needed.Then, the parts are shotpeened
and stripped and thus being inspected by magnetic
particle again.
STEP 7 New bushings are installed.  The new
bushings are made to the exact size for the part
after all of its rework. If the landing gear
components are found Part is prime painted and
top coat painted and thus being sent for
assembly.
OVERHAUL PROCESS
STEP 8 All the landing gear hydraulic system
components are tested after final assembly. The
landing gear is put in a special hydraulic press
to compress the shock for testing proposes. After
the testing procedure, the shock absorber is
deflated to a reduced pressure for shipping.
STEP 9 The landing gear are being packed using
bubble wrap to avoid from vibration and as
surface protection.
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INTRODUCTION
OVERHAUL PROCESS
DOCUMENTS REQUIRED
TOOL AND EQUIPMENT
TIME LINE
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DOCUMENTS REQUIRED
ENTRY

• CONTRACT
• PURCHASE ORDER (PO)
• AGREEMENT

DISASSEMBLY

• COMPONENT OVERHAUL MANUAL

CLEANING

• MATERIAL SAFETY DATA SHEET (MSDS)
• COMPONENT OVERHAUL MANUAL

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DOCUMENTS REQUIRED
INSPECTION

• COMPONENT OVERHAUL MANUAL

REPAIR/REBUILT

• COMPONENT OVERHAUL MANUAL

ASSEMBLY

• COMPONENT OVERHAUL MANUAL

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INTRODUCTION
OVERHAUL PROCESS
DOCUMENTS REQUIRED
TOOL AND EQUIPMENT
TIME LINE
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TOOL AND EQUIPMENT
FORKLIFT
5 TONNE OVERHEAD CRANE
ARDROX 6085
CLOSED CIRCUIT BLASTING MACHINE
MAGNETIC PARTICLE INSPECTION MACHINE
BORE MACHINE
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TOOL AND EQUIPMENT
CHROME PLATING MACHINE
SUPERSONIC PARTICLE DEPOSITION (SPD)
BUBBLE WRAP
SAMPLING BOTTLE FOR OLEO FLUID
METAL TAGGING
WATER DEMINERALIZATION
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INTRODUCTION
OVERHAUL PROCESS
DOCUMENTS REQUIRED
TOOL AND EQUIPMENT
TIME LINE
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TIME LINE
NO. DESCRIPTION OPERATOR HOURS MAN POWER REQUIRED
1. ENTRY DOCUMENT UNPACKING VISUAL INSPECTION PHOTO CAPTURE 1 day 2
2. DIASSEMBLY SAMPLE COLLECTED DIASSEMBLE PARTS PAINT STRIPPING 1 ½ days 2
3. CLEANING ALKALINE/ACIDIC LEVEL CHECK DEIONIZED PROCESS METAL TAGGING 2 ½ days 2
4. INSPECTION MPI/DPI INSPECTOR LEVEL 2 CHECK 1 day 2
5. REPAIR/REBUILT DOCUMENT UNPACKING VISUAL INSPECTION PHOTO CAPTURE 1 day 3
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TIME LINE
NO. DESCRIPTION OPERATOR HOURS MAN POWER REQUIRED
6. ASSEMBLY ASSEMBLE PARTS 1 day 1
2. TESTING FUNCTIONAL OPERATIONAL TEST 1 day 2
3. PACKING PACKING USING BUBBLE WRAP 1 day 2
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