ATA Standard Numbering System

Information Standards for Aviation Maintenance

ATA Standard Numbering System is an extract from ATA iSpec 2200, which provides the industry-wide standard for numbering aircraft systems, often referred to as system or chapter numbers.

ATA Specification 2200 (also called iSpec 2200) are Information Standards for Aviation Maintenance.

Airlines for America (A4A), formerly known as Air Transport Association of America (ATA), is an American trade association. The Air Transport Association released the ATA Specification to standardize the format in which maintenance information is presented in aircraft maintenance manuals.

ATA Specification 2200 contains format and content guidelines for technical manuals written by aviation manufacturers and suppliers. These documents are used by airlines and other segments of the industry in the maintenance of their respective products. This document provides the industry-wide standard for aircraft systems numbering, often referred to as ATA system or chapter numbers.

The original specification was called ATA Spec 100. Over the years, Spec 100 has been continuously revised and updated. Eventually, ATA Spec 2100 was developed for electronic documentation. These two specifications evolved into one document called ATA iSpec 2200. As a result of this standardization, maintenance technicians can always find information regarding a particular system in the same section of an aircraft maintenance manual, regardless of manufacturer. For example, if seeking information about the fuel system on any aircraft, that information is always found in section (chapter) 28.

Before 1989: ATA specification 100 – manufacturers’ technical data

In 1994: Creation of the ATA specification 2100 – digital data standards for aircraft support

In 2000: Creation of the ATA specification 2200 (Information Standards for Aviation Maintenance) based on the two specifications i.e ATA 100 and ATA 2100.

In 2000, ATA Spec 100 and ATA Spec 2100 were incorporated into ATA iSpec 2200: Information Standards for Aviation Maintenance.

The A4A iSpec 2200 divides the aircraft into systems, such as air conditioning, that covers the basic air conditioning system (A4A 21). Numbering in each major system provides an arrangement for breaking the system down into several subsystems.

To standardize the technical data and maintenance activities on aircraft, the A4A has established a classification of maintenance related actions. These are arranged with sequential numbers assigned to A4A chapters.

ATA iSpec 2200 is a global aviation industry standard for the content, structure, and electronic exchange of aircraft engineering and maintenance information.

The objective of iSpec 2200 is to minimize cost and effort expended by operators and manufacturers, improve information quality and timeliness, and facilitate manufacturers’ delivery of data that meets airline operational needs.

It includes the industry-wide standard for numbering aircraft systems, as well as content and electronic formatting specifications for technical documents, regardless of delivery medium.

Document Type Definitions

ATA iSpec 2200 provides the following Document Type Definitions (DTDs):

• Aircraft Maintenance Manual (AMM)
• Aircraft Illustrated Parts Catalog
• Component Maintenance Manual
• Consumable Products Menu
• Engine Illustrated Parts Catalog
• Engine (Shop) Manual
• Fault Reporting Manual
• Flight Crew Operations Manual
• Master Minimum Equipment List
• Maintenance Planning Document
• ATA MSG-3
• ATA Service Bulletin
• ATA Service Bulletin Index
• Structural Repair Manual
• System Description Section
• Tool and Equipment Manuals
• Wiring Manual

ATA (A4A) Chapters

• ATA 00 – GENERAL
• ATA 01 – MAINTENANCE POLICY
• ATA 02 – OPERATIONS
• ATA 03 – SUPPORT
• ATA 04 – AIRWORTHINESS LIMITATIONS
• ATA 05 – TIME LIMITS/MAINTENANCE CHECKS
• ATA 06 – DIMENSIONS AND AREAS
• ATA 07 – LIFTING AND SHORING
• ATA 08 – LEVELING AND WEIGHING
• ATA 09 – TOWING AND TAXIING
• ATA 10 – PARKING, MOORING, STORAGE AND RETURN TO SERVICE
• ATA 11 – PLACARDS AND MARKINGS
• ATA 12 – SERVICING
• ATA 13 – HARDWARE AND GENERAL TOOLS
• ATA 15 – AIRCREW INFORMATION
• ATA 16 – CHANGE OF ROLE
• ATA 18 – VIBRATION AND NOISE ANALYSIS (HELICOPTER ONLY)
• ATA 20 – STANDARD PRACTICES- AIRFRAME
• ATA 21 – AIR CONDITIONING
• ATA 22 – AUTO FLIGHT
• ATA 23 – COMMUNICATION
• ATA 24 – ELECTRICAL POWER
• ATA 25 – EQUIPMENT /FURNISHINGS
• ATA 26 – FIRE PROTECTION
• ATA 27 – FLIGHT CONTROLS
• ATA 28 – FUEL
• ATA 29 – HYDRAULIC POWER
• ATA 30 – ICE AND RAIN PROTECTION
• ATA 31 – INDICATING / RECORDING SYSTEM
• ATA 32 – LANDING GEAR
• ATA 33 – LIGHTS
• ATA 34 – NAVIGATION
• ATA 35 – OXYGEN
• ATA 36 – PNEUMATIC
• ATA 37 – VACUUM
• ATA 38 – WATER / WASTE
• ATA 39 – ELECTRICAL – ELECTRONIC PANELS AND MULTIPURPOSE COMPONENTS
• ATA 40 – MULTI-SYSTEM
• ATA 41 – WATER BALLAST
• ATA 42 – INTEGRATED MODULAR AVIONICS
• ATA 44 – CABIN SYSTEMS
• ATA 45 – ONBOARD MAINTENANCE SYSTEMS (OMS)
• ATA 46 – INFORMATION SYSTEMS
• ATA 47 – INERT GAS SYSTEM
• ATA 48 – IN FLIGHT FUEL DISPENSING
• ATA 49 – AIRBORNE AUXILIARY POWER
• ATA 50 – CARGO AND ACCESSORY COMPARTMENTS
• ATA 51 – STANDARD PRACTICES AND STRUCTURES – GENERAL
• ATA 52 – DOORS
• ATA 53 – FUSELAGE
• ATA 54 – NACELLES/PYLONS
• ATA 55 – STABILIZERS
• ATA 56 – WINDOWS
• ATA 57 – WINGS
• ATA 60 – STANDARD PRACTICES – PROP./ROTOR
• ATA 61 – PROPELLERS/ PROPULSORS
• ATA 62 – MAIN ROTOR(S)
• ATA 63 – MAIN ROTOR DRIVE(S)
• ATA 64 – TAIL ROTOR
• ATA 65 – TAIL ROTOR DRIVE
• ATA 66 – FOLDING BLADES/PYLON
• ATA 67 – ROTORS FLIGHT CONTROL
• ATA 70 – STANDARD PRACTICES – ENGINES
• ATA 71 – POWER PLANT
• ATA 72 – ENGINE
• ATA 72T – ENGINE – TURBINE/TURBOPROP, DUCTED FAN/UNDUCTED FAN
• ATA 72R – ENGINE – RECIPROCATING
• ATA 73 – ENGINE – FUEL AND CONTROL
• ATA 74 – IGNITION
• ATA 75 – BLEED AIR
• ATA 76 – ENGINE CONTROLS
• ATA 77 – ENGINE INDICATING
• ATA 78 – EXHAUST
• ATA 79 – OIL
• ATA 80 – STARTING

Source : A4A