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Maintenance practices

Basic Module 7

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Applicability

This module is required for the following AML categories:

M07A

M07B

Topics

M07A

Issued on Regulation (EU) 2018/1142

Aspects of safe working practices including precautions to take when working with electricity, gases especially oxygen, oils and chemicals. Also, instruction in the remedial action to be taken in the event of a fire or another accident with one or more of these hazards including knowledge on extinguishing agents.

  • Care of tools, control of tools, use of workshop materials;
  • Dimensions, allowances and tolerances, standards of workmanship;
  • Calibration of tools and equipment, calibration standards.
  • Common hand tool types;
  • Common power tool types;
  • Operation and use of precision measuring tools;
  • Lubrication equipment and methods.
  • Operation, function and use of electrical general test equipment.
  • Operation, function and use of avionic general test equipment.
  • Drawing types and diagrams, their symbols, dimensions, tolerances and projections;
  • Identifying title block information;
  • Microfilm, microfiche and computerised presentations;
  • Specification 100 of the Air Transport Association (ATA) of America;
  • Aeronautical and other applicable standards including ISO, AN, MS, NAS and MIL;
  • Wiring diagrams and schematic diagrams.
  • Drill sizes for bolt holes, classes of fits;
  • Common system of fits and clearances;
  • Schedule of fits and clearances for aircraft and engines;
  • Limits for bow, twist and wear;
  • Standard methods for checking shafts, bearings and other parts.
  • Continuity, insulation and bonding techniques and testing;
  • Use of crimp tools: hand and hydraulic operated;
  • Testing of crimp joints;
  • Connector pin removal and insertion;
  • Co-axial cables: testing and installation precautions;
  • Identification of wire types, their inspection criteria and damage tolerance.
  • Wiring protection techniques: Cable looming and loom support, cable clamps, protective sleeving techniques including heat shrink wrapping, shielding;
  • EWIS installations, inspection, repair, maintenance and cleanliness standards.
  • Riveted joints, rivet spacing and pitch;
  • Tools used for riveting and dimpling;
  • Inspection of riveted joints.
  • Bending and belling/flaring aircraft pipes;
  • Inspection and testing of aircraft pipes and hoses;
  • Installation and clamping of pipes.
  • Inspection and testing of springs.
  • Testing, cleaning and inspection of bearings;
  • Lubrication requirements of bearings;
  • Defects in bearings and their causes.
  • Inspection of gears, backlash;
  • Inspection of belts and pulleys, chains and sprockets;
  • Inspection of screw jacks, lever devices, push-pull rod systems.
  • Swaging of end fittings;
  • Inspection and testing of control cables;
  • Bowden cables; aircraft flexible control systems.
  • Sheet Metal
    • Marking out and calculation of bend allowance;
    • Sheet metal working, including bending and forming;
    • Inspection of sheet metal work.
  • Composite and non-metallic
    • Bonding practices;
    • Environmental conditions;
    • Inspection methods.
  • (A)
    • Soldering methods; inspection of soldered joints.
  • (B)
    • Welding and brazing methods;
    • Inspection of welded and brazed joints;
    • Bonding methods and inspection of bonded joints.
  • (A)
    • Centre of Gravity/Balance limits calculation: use of relevant documents;
  • (B)
    • Preparation of aircraft for weighing;
      Aircraft weighing.
  • Aircraft taxiing/towing and associated safety precautions;
  • Aircraft jacking, chocking, securing and associated safety precautions;
  • Aircraft storage methods;
  • Refuelling/defuelling procedures;
  • De-icing/anti-icing procedures;
  • Electrical, hydraulic and pneumatic ground supplies.
  • Effects of environmental conditions on aircraft handling and operation.
  • (A)
    • Types of defects and visual inspection techniques;
    • Corrosion removal, assessment and reprotection;
  • (B)
    • General repair methods, Structural Repair Manual;
    • Ageing, fatigue and corrosion control programmes;
  • (C)
    • Non-destructive inspection techniques including, penetrant, radiographic, eddy current, ultrasonic and boroscope methods;
  • (D)
    • Disassembly and re-assembly techniques;
  • (E)
    • Trouble shooting techniques.
  • Inspections following lightning strikes and HIRF penetration;
  • Inspections following abnormal events such as heavy landings and flight through turbulence.

Examination

  • AML Cat B1
    80 multi-choice and 2 essay questions.
    Time allowed: 100 minutes plus 40 minutes.
  • AML Cat B2
    60 multi-choice and 0 essay questions.
    Time allowed: 75 minutes plus 40 minutes.

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