The ATA 100 Code Table, established in 1956, is a standardized classification system that assigns numerical "chapters" to different aircraft systems and components to create a common language for ...
ATA Chapter Code ATA 25 Equipment/Furnishings ATA 32 Landing Gear ATA 34 Navigation ATA 27 Flight Controls ATA 21 Air Conditioning ATA 23 Communications ATA 28 Fuel ATA 29 Hydraulic Power ATA 24 ...