industrial training in biman bangladesh airlines ltd final
TRANSCRIPT
Industrial Training In
Biman Bangladesh Airlines Ltd.
Aero Overhaul&
Maintenance Support Service
Group : Aero CDepartment of Aeronautical Engineering
Military Institute Of Science and Technology
1Sunday,December 28, 2014
Aero OverhaulAero
Overhaul
InstrumentOverhaul
ShopSafetyShop
Seat Shop
Brake Shop
2Sunday,December 28, 2014
Maintenance Support Service
Engineering Tool Store
IndustrialPaint Shop
SheetMetal Shop
3Sunday,December 28, 2014
Specimens(Landing Gear Brakes) Observed
Model of The Aircraft
Components/Parts of The Landing Gear BrakeObserved
Airbus A310 •Observed the housing (contains 6 hydraulic pistons),•Wear indicating pin.
Boeing 777-200ER Observed the brake at a glance.
Boeing 777-300ER Observed the brake at a glance.
4Sunday,December 28, 2014
Fig-Brake of a Landing Gear
General Image of a Landing Gear Brake Nomenclature of a Landing Gear Brake
5Sunday,December 28, 2014
Hydraulics Used in Actuator of Landing Gear
6
actuator
Hyjet IV A plus : It is blue in color and is used in the actuator of the nose landing gear.
Fluid-41 : It is red in color and is used in the act-uator of the main landing gear.
Sunday,December 28, 2014
Tests Performed in The Brake Shop
• Rig Test
• Pneumatic Test and
• Hydraulic Test
7Sunday,December 28, 2014
Apparatus Observed in The Brake Shop
• Low Pressure Bench: Its maximum pressure range is 150 psi.
• High Pressure Bench: Its maximum pressure range is 6000psi.
• Special tool: It is used to engage some bolts to the brake.
• Torque Meter: Used to give a precise torque while tightening a bolt.
Note that after the final assembly, the brake needs to be locked by tying the bolts to each other with the help of a special wire.
8Sunday,December 28, 2014
Process How The Brakes Come to The Brake Shop And Get Released From The Shop
9
Reception of brake with an US tag
Verification of the complain and Identification of the problem
Proper Treatment and Reassembling of the brake
Final Check-up
Parts Control
Inspection Store
Assembling the brake into the aircraftSunday,December 28, 2014
Seat Repair ShopBiman Bangladesh Airlines
Asif Shahriar Nafi
Airline Seat• Passengers are accommodated during the flight in specially designed seats.
• Crew seats are different in configuration as compared to the passenger seats.
Types
Passenger Seats Crew Seats
# Business Class Seats # Pilot/Co-Pilot Seats
# First Class Seats # Navigator/Flight Engineer Seats
# Premium Economy Class # Flight Attendant Seats
# Economy Class Seats
Airline Seat Manufacturers • Geven
• Recaro
• ZIM Flugsitz GmbH
• EADS Sogerma
• EXPLISEAT
• Zodiac Seats
• Aviointeriors
• Acro Aircraft Seating
• European Aviation
• Thompson Aero Seating
• B/E Aerospace
• TIMCO Aerosystems
• DeCrane Aerospace
• TSI Aviation Seats
• Airpac Enterprises
Seat Maintenance Section
• Biman Bangladesh Airlines seat maintenance section is divided into several sub-sections.
Seat Refurbishment
Biman Bangladesh airlines seat repair workshop provides comprehensiveinspection, repair and overhaul of passenger, crew and pilot seats for Boeing777 (200ER &300ER), Airbus A310, Boeing 737 seat types to a consistently highstandard.
Boeing, Airbus, Douglas Seat Designs
• Boeing 777-200ER Seats
• Boeing 777-300ER Seats
Cont.
• Boeing 737-800 Seats • Airbus A310 Seats
Cont.
• McDonnell Douglas DC-10 Seats
Carpet Manufacture
• Biman Bangladesh Airlines is capable of supplying a range of aircraft carpets to meet the specific requirements.
Curtain Manufacture
• Design and manufacturing of an extensive range of aircraft curtains as well as structural attachments are also produced in workshop.
Cleaning Shop
• Seat Repair Section also performs individual dry or wet cleaning in the cabin,carried out as part of the complete maintenance service. In addition, theyhave in-house capabilities to wash, maintain seat covers, curtains, carpets;to freshen up and maintain leather seat covers; or to wash and maintainseatbelts, seat pockets, etc. Cleaning agents used on aircraft are solvents,emulsion cleaners, soaps, and synthetic detergents.
Aviation & Flight Life Safety Equipment
Presented ByNurul Huda
Roll:201222037
Airplane Seat Belt
Airplane Life Vest
Aircraft Life Raft
Aircraft Oxygen Mask
Instrument Overhaul ShopBiman Bangladesh Airlines
By Md.Sajedul Islam Sakir201222040
Instruments which Are checked:
1.Airspeed indicator
2.Mach speed indicator (Mach meter)
3. Altimeter
4. Vertical Speed indicator
5. Attitude of Aircraft indicator
6. Fuel indicator
7.Oxygen cylinder
8. Engine fire Extinguisher
Pitot static instrument
Vertical speed indicator(VSI)
Altimeter Mach meterAir speed
indicator(ASI)
Gyroscopic instrument
Attitude indicator
Fuel Flow Indicator Fuel flow meter are used with fuels to show the amount of fuel in
gallon or pound per hour.
The fuel flow indicator system consists of a fuel flow transmitter
located in the fuel line leading from the tank to the engine and
indicator located on the instrument panel.
Oxygen Cylinder
An oxygen tank is an oxygen storage vessel for oxygen, which is
either held under pressure in gas cylinders or as liquid oxygen in a
cryogenic storage tank.
Breathing oxygen is delivered from the storage tank to the users
by use of the oxygen mask.
Materials for oxygen cylinder:
1.Steel (DC-10)
2.Composite Fiber (Boeing -777)
Fire extinguisher Agents
Fire extinguishing agents are those chemicals that are injected into a compartment or area to extinguish a fire.
These agents work by either displacing the oxygen or chemically combining the oxygen to prevent combustion.
Some common fire extinguisher Are:
1. CO2
2.Freon ( A Chlorinated Hydrocadbon)
3. Halon 1301 ( Monobromotrifluoromethane, CF3Br)
Water (H2O) is also used as Fire extinguisher in aircraft.
SHEET METAL SHOP
Bymir sakib mustashin
PURPOSE
• Structural repair
Materials
•Steel•Aluminum Alloy•Composites
MANUAL
•Structural Repair Manual
TYPES OF REPAIRS
• The type of repair to be made will depend on the
materials, tools, amount of time available,
accessibility to the damaged area, and maintenance
level. The types of repair are permanent, temporary,
and one-time flight (ferry).
• Permanent repair is one that restores the strength of
the repaired structure equal to or greater than its
original strength and satisfies aerodynamic, thermal,
and interchangeability requirements, This ensures the
designed capabilities of the aircraft.
TYPES OF REPAIRS
• Temporary repair restores the load-carrying ability of the structure
but is not aerodynamically smooth or able to satisfy
interchangeability requirements. This repair should be replaced by
a permanent type as soon as possible in order for the aircraft to be
restored to its normal condition.
• One-time flight repair restores a limited load-carrying ability to the
damaged structure in order to fly the aircraft to a depot
maintenance activity for a permanent repair. When this type of
repair is made, the aircraft cockpit should be placarded to limit the
performance of the aircraft.
MACHINES & TOOLS USEDShearing Machine• Sheet metal forming machine that
used to cut sheet metal
• Hydraulically powered
• It works by first clamping the material with a ram
• A moving blade then comes down across a fixed blade to shear the material
Grinding Machine• A type of machining using an abrasive
wheel as the cutting tool
MACHINES & TOOLS USED
Rolling Machine• Roll different kind of metal sheet into
a round or conical shape
Shrinking & Stretching Tools• Shrinking reduces surface area by
thickening the sheet metal
• Stretching increases the surface area and causes it to become thinner.
MACHINES & TOOLS USEDTube Bending Machine• Round, rectangular or square tube
• Factors involved in the tube bending process is the wall thickness, tooling and lubricants needed by the pipe and tube bender to best shape the material.
Cable Swaging Machine• Attach fittings to pipes or cables
• Parts loosely fit together, and a mechanical or hydraulic tool compresses and conforms the fitting, creating a permanent joint.
MACHINES & TOOLS USED
Lathe Machine• Rotates the workpiece on its axis to
perform various operations such as cutting, sanding, knurling with tools that are applied to the workpiece to create an object which has symmetry about an axis of rotation.
Drilling Machine• Motor driven device, fitted with an end
cutting tool that is rotated with sufficient
power either to create a hole in a solid material.
MACHINES & TOOLS USED
Rivet Guns• Also known as a pneumatic
hammer, is a type of tool used to drive rivets.
Hand cutting machine
Paint Shop
Paint, or more specifically its overall color and application,is usually the first impression that is transmitted to someonewhen they look at an aircraft for the first time. Paint makesa statement about the aircraft the person who owns oroperates it. The paint scheme may reflect the owner’s ideasand color preferences for an amateur-built aircraft project,or it may be colors and identification for the recognition ofa corporate or air carrier aircraft.
Paint Shop:
Paint is more than aesthetics;-it affects the weight of the aircraft and protects the integrity of the airframe. The topcoat finish is applied to protect the exposed surfaces from corrosion and deterioration.
-a properly painted aircraft is easier to clean and maintain because the exposed surfaces are more resistant to corrosion and dirt, and oil does not adhere as readily to the surface.
Finishing Materials :A wide variety of materials are used in aircraft finishing. Some of the more common materials:-Acetone-Alcohol-Benzene-Methyl Ethyl Ketone-Linseed Oil
Primers:The importance of primers in finishing and protection isgenerally misunderstood and underestimated because it isinvisible after the topcoat finish is applied. A primer is thefoundation of the finish.Its role is to-bond to the surface
-inhibit corrosion of metal- provide an anchor point for the finish coats
Some of the various primer types are :
-Wash Primers-Red Iron Oxide-Gray Enamel Undercoat -Urethane
Preparation:
-Surfaces
-Primer and Paint-Adjusting the Spray Pattern-Applying the Finish That’s how the whole process of painting is done.
Industrial Tools Shop
The aviation maintenance technician spends a major portion of each day
using a wide variety of hand tools to accomplish maintenance tasks. Our
presentation contains an overview of some of the hand tools an aviation
maintenance technician can expect to use. An aviation maintenance
technician encounters many special tools as their experience widens; large
transport category aircraft have different maintenance tasks from those of a
light airplane, and special hand tools are often required when working on
complex aircraft.
This presentation outline the basic knowledge required in using the most
common hand tools used in aircraft repair and maintenance work. Sound
knowledge is required of these basic rules. The use of tools may vary, but
good practices for safety, care, and storage of tools remain the same.
It is called Engineering heart
Two types of tools
General tools & special tools
Screwdrivers:
1. Used for tightening or loosening screws or screw-head bolts
2. Use a screwdriver with care on the aircraft because the simple
act of slipping off the head of a screw can deeply scratch the
aluminum or magnesium skin, possibly resulting later in
corrosion
Flat screwdriver:
Philips screwdriver:
Hammers and mallets:
We should always choose the hammer appropriate for the job to avoid damaging
the work or the hammer itself.
Metal head hammer:
These are sized according to the weight of the head without the handle.
Soft faced hammer and mallet:
These have striking surfaces made of: wood, brass, lead, rawhide, hard rubber,
or plastic.
Pliers
Pliers are a hand tool used to hold objects firmly.
Monkey Pliers
Crimping plier:
Pipe wrench
A pipe wrench is a type of adjustable wrench that is used for gripping and
tightening or loosening rounded metal objects, like rods, bolt, or pipes.
Pipe Wrench
Spanner
A spanner is a tool used to provide grip and mechanical advantage in applying
torque to turn objects—usually rotary fasteners, such as nuts and bolts—or
keep them from turning.
Open end Spanner
Adjustable spanner
Socket
Torque wrench
Head aet
Mechanical finger
Speed handle
Ratchet handle
Spring balance
Plumb bob