Document ID: chunk:federal_register_of_legislation:F2025C00150:reg:1:p19
Version: federal_register_of_legislation:F2025C00150
Segment Type: reg
Provision Reference: reg 1 (pt 19/29)
Character Range: 206883–217496

system layouts and operation of:
Auto flight (ATA22);
Communications (ATA23);
Navigation Systems (ATA34).
12.8   Electrical power (ATA24)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  1   3                                    —
Batteries installation and operation;
DC power generation, AC power generation;
Emergency power generation;
Voltage regulation, circuit protection;
Power distribution;
Inverters, transformers, rectifiers;
External and ground power.
12.9   Equipment and furnishings (ATA25)
(a)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              2   2                                    —
    Emergency equipment requirements;
    Seats, harnesses and belts;
    Lifting systems;
(b)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              1   1                                    —
    Emergency flotation systems;
    Cabin layout, cargo retention;
    Equipment layout;
    Cabin furnishing installation.
12.10   Fire protection (ATA26)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  1   3                                    —
Fire and smoke detection and warning systems;
Fire extinguishing systems;
System tests.
12.11   Fuel systems (ATA28)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     1   3                                    —
System layout;
Fuel tanks;
Supply systems;
Dumping, venting and draining;
Cross-feed and transfer;
Indications and warnings;
Refuelling and defuelling.
12.12   Hydraulic power (ATA29)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  1   3                                    —
System layout;
Hydraulic fluids;
Hydraulic reservoirs and accumulators;
Pressure generation: electric, mechanical, pneumatic;
Emergency pressure generation;
Filters;
Pressure control;
Power distribution;
Indication and warning systems;
Interface with other systems.
12.13   Ice and rain protection (ATA30)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          1   3                                    —
Ice formation, classification and detection;
Anti-icing and de-icing systems: electrical, hot air and chemical;
Rain repellent and removal;
Probe and drain heating;
Wiper system.
12.14   Landing gear (ATA32)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     2   3                                    —
Construction, shock absorbing;
Extension and retraction systems: normal and emergency;
Indications and warning;
Wheels, tyres, brakes;
Steering;
Air-ground sensing;
Skids, floats.
12.15   Lights (ATA33)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           2   3                                    —
External: navigation, landing, taxiing, ice;
Internal: cabin, cockpit, cargo; emergency.
12.16   Pneumatic and vacuum (ATA36)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             1   3                                    —
System layout;
Sources: engine, compressors, reservoirs, ground supply;
Pressure control;
Distribution;
Indication sand warnings;
Interfaces with other systems.
12.17   Integrated modular avionics (ATA42)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      1   2                                    —
Functions that may be typically integrated in the integrated modular avionics (IMA) modules include: bleed management, air pressure control, air ventilation and control, avionics and cockpit ventilation control, temperature control, air traffic communication, avionics communication router, electrical load management, circuit breaker monitoring, electrical system BITE, fuel management, braking control, steering control, landing gear extension and retraction, tyre pressure indication, oleo pressure indication, brake temperature monitoring;
Core system;
Network components.
12.18   On‑board maintenance systems (ATA45)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     1   2                                    —
Central maintenance computers;
Data loading system;
Electronic library system;
Printing;
Structure monitoring (damage tolerance monitoring).
12.19   Information systems (ATA46)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              1   2                                    —
The units and components which furnish a means of storing, updating and retrieving digital information, traditionally provided on paper, microfilm or microfiche. These include units that are dedicated to the information storage and retrieval function such as the electronic library mass storage and controller. These do not include units or components installed for other uses and shared with other systems, such as flight deck printer or general use display.
Typical examples include: air traffic and information management systems; network