Training Courses

Module 7. Maintenance Practices (Part-66)

Module 7. Maintenance Practices (Part-66)


370 hours training

Number of Participants





Content: Part-66 Module 7. Maintenance Practices


1. Safety Precautions-Aircraft and Workshop

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

2. Workshop Practices

  • Care of tools, control of tools, use of workshop materials;
  • Dimensions, allowances and tolerances, standards of workmanship;
  • Calibration of tools and equipment, calibration standards.

3. Tools

  • 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;

4. Avionic General Test Equipment

  • Operation, function and use of avionic general test equipment.

5. Engineering Drawings, Diagrams and Standards

  • Drawing types and diagrams, their symbols, dimensions, tolerances andprojections;
  • 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.

6. Fits and Clearances

  • 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.

7. Electrical Cables and Connectors

  • Continuity, insulation and bonding techniques andtesting;
  • Use of crimp tools: hand and hydraulic operated;
  • Testing of crimp joints;
  • Connector pin removal and insertion;
  • Co-axial cables: testing and installation precautions;
  • Wiring protection techniques: Cable looming andloom support, cable clamps, protective sleevingtechniques including heat shrink wrapping, shielding.

8. Riveting

  • Riveted joints, rivet spacing and pitch;
  • Tools used for riveting and dimpling;
  • Inspection of riveted joints.

9. Pipes and Hoses

  • Bending and belling/flaring aircraft pipes;
  • Inspection and testing of aircraft pipes and hoses;
  • nstallation and clamping of pipes.

10. Springs

  • Inspection and testing of springs.

11. Bearings

  • Testing, cleaning and inspection of bearings;
  • Lubrication requirements of bearings;
  • Defects in bearings and their causes.

12. Transmissions

  • Inspection of gears, backlash;
  • Inspection of belts and pulleys, chains and sprockets;
  • Inspection of screw jacks, lever devices, push-pull rod systems.

13. Control Cables

  • Swaging of end fittings;
  • Inspection and testing of control cables;
  • Bowden cables; aircraft flexible control systems.

14. Material handling

  • 14.1 Sheet Metal
    • Marking out and calculation of bend allowance;Sheet metal working, including bending and forming;
    • Inspection of sheet metal work.
  • 14.2 Composite and non-metallic
    • Bonding practices;
    • Environmental conditions
    • Inspection methods

15. Welding, Brazing, Soldering and Bonding

  • 15.1 Soldering methods; inspection of soldered joints.
  • 15.2 Welding and brazing methods;
    • Inspection of welded and brazed joints;
    • Bonding methods and inspection of bonded joints.

16. Aircraft Weight and Balance

  • 16.1 Centre of Gravity/Balance limits calculation: use of relevant documents;
  • 16.2 Preparation of aircraft for weighing;
    • Aircraft weighing;

17. Aircraft Handling and Storage

  • 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.

18. Disassembly, Inspection, Repair and Assembly Techniques

  • 18.1 Types of defects and visual inspection techniques;
    • Corrosion removal, assessment and reprotection.
  • 18.2 General repair methods, Structural Repair Manual;
    • Ageing, fatigue and corrosion control programmes;
  • 18.3 Non destructive inspection techniques including, penetrant,radiographic, eddy current, ultrasonic and boroscope methods.
  • 18.4 Disassembly and re-assembly techniques.
  • 18.5 Trouble shooting techniques

19. Abnormal Events

  • 19.1 Inspections following lightning strikes and HIRF penetration.
  • 19.2 Inspections following abnormal events such as heavy landings andflight through turbulence.

20. Maintenance Procedures

  • Maintenance planning;
  • Modification procedures;Stores procedures;
  • Certification/release procedures;
  • Interface with aircraft operation;
  • Maintenance Inspection/Quality Control/Quality Assurance;
  • Additional maintenance procedures;
  • Control of life limited components.



Target Group


Aircraft Engine






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