EASA PART 66 MODULE 12 P2

EASA PART 66 MODULE 12 HELICOPTER AERODYNAMICS, STRUCTURES AND SYSTEMS PART 2

(12.5 Airframe Structures A B 12.6 Air Conditioning (ATA 21) 12.6.1 Air supply 12.6.2 Air Conditioning)

12.5 Airframe Structures

(a) 

• Airworthiness requirements for structural strength;
• Structural classification, primary, secondary and tertiary;
• Fail safe, safe life, damage tolerance concepts;
• Zonal and station identification systems;
• Stress, strain, bending, compression, shear, torsion, tension, hoop stress, fatigue;
• Drains and ventilation provisions;
• System installation provisions;
• Lightning strike protection provision.

(b) 

• Construction methods of: stressed skin fuselage, formers, stringers, longerons, bulkheads,
• frames, doublers, struts, ties, beams, floor structures, reinforcement, methods of skinning and anti-corrosive protection.
• Pylon, stabiliser and undercarriage attachments;
• Seat installation;
• Doors: construction, mechanisms, operation and safety devices;
• Windows and windscreen construction;
• Fuel storage;
• Firewalls;
• Engine mounts;
• Structure assembly techniques: riveting, bolting, bonding;
• Methods of surface protection, such as chromating, anodising, painting;
• Surface cleaning.
• Airframe symmetry: methods of alignment and symmetry checks.

12.6 Air Conditioning (ATA 21)

12.6.1 Air supply 

Sources of air supply including engine bleed and ground cart;

12.6.2 Air Conditioning

• Air conditioning systems;
• Distribution systems;
• Flow and temperature control systems;
• Protection and warning devices.