# ATA 100

ATA 100 contains the reference to the ATA numbering system which is a common referencing standard for commercial aircraft documentation. This commonality permits greater ease of learning and understanding for pilots, aircraft maintenance technicians, and engineers alike. The standard numbering system was published by the Air Transport Association on June 1, 1956. While the ATA 100 numbering system has been superseded, it continued to be widely used until it went out of date in 2015, especially in documentation for general aviation aircraft, on aircraft Fault Messages (for Post Flight Troubleshooting and Repair) and the electronic and printed manuals.
The Joint Aircraft System/Component (JASC) Code Tables was a modified version of the Air Transport Association of America (ATA), Specification 100 code. It was developed by the FAA's, Regulatory Support Division (AFS-600). This code table was constructed by using the new JASC code four digit format, along with an abbreviated code title. The abbreviated titles have been modified in some cases to clarify the intended use of the accompanying code. The final version of the JASC/ATA 100 code was released by the FAA in 2008.
In 2000 the ATA Technical Information and Communications Committee (TICC) developed a new consolidated specification for the commercial aviation industry, ATA iSpec 2200. It includes an industry-wide approach for aircraft system numbering, as well as formatting and data content standards for documentation output. The main objectives of the new specification are to minimize cost and effort expended by operators and manufacturers, improve information quality and timeliness, and facilitate manufacturers' delivery of data that meet airline operational needs. More recently, the international aviation community developed the S1000D standard, an XML specification for preparing, managing, and using equipment maintenance and operations information.
The unique aspect of the chapter numbers is its relevance for all aircraft. Thus a chapter reference number for a Boeing 747 will be the same for other Boeing aircraft, a BAe 125 and Airbus Aircraft. Examples of this include Oxygen (Chapter 35), Electrical Power (Chapter 24) and Doors (Chapter 52). Civil aviation authorities will also organize their information by ATA chapter like the Master Minimum Equipment List (MMEL) Guidebook from Transport Canada.
The ATA chapter format is always CC-SS, where CC is the chapter and SS the section, see ATA extended list section below for details. Some websites, like aircraft parts resellers, will sometimes refer to ATA 72R or 72T for reciprocating and turbine engines (jet or turboprop), this nomenclature is not part per se of the ATA numbering definition. The ATA 72 subchapter are different for reciprocating engines and turbine engines. Under JASC/ATA 100 the reciprocating engine are now under ATA 85.

## ATA Chapters
### Aircraft General

| ATA Number | ATA Chapter name Line maintenance TAROM RZV |
| 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) |

### Aircraft systems

| ATA Number | ATA Chapter name |
| ATA 20 | STANDARD PRACTICES- AIRFRAME |
| ATA 21 | AIR CONDITIONING AND PRESSURIZATION |
| ATA 22 | AUTO FLIGHT |
| ATA 23 | COMMUNICATIONS |
| 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 | MULTISYSTEM |
| ATA 41 | WATER BALLAST |
| ATA 42 | INTEGRATED MODULAR AVIONICS |
| ATA 43 | EMERGENCY SOLAR PANEL SYSTEM (ESPS) |
| 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 UNIT |
| ATA 50 | CARGO AND ACCESSORY COMPARTMENTS |

### Structure

| ATA No. | ATA Chapter Name |
| 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 |

### Propeller/rotor

| ATA Chapter | ATA Chapter name |
| ATA 60 | STANDARD PRACTICES - PROP./ROTOR |
| ATA 61 | PROPELLER / 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 AND FLIGHT CONTROLS |

### Power plant

| ATA Number | ATA Chapter name |
| ATA 70 | STANDARD PRACTICES - ENGINE |
| ATA 71 | POWER PLANT |
| ATA 72 | ENGINE |
| ATA 72 | ENGINE - TURBINE/TURBOPROP, DUCTED FAN/UNDUCTED FAN Sometimes referred to as ATA 72T |
| ATA 72 | ENGINE - RECIPROCATING Sometimes referred to as ATA72R |
| 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 |
| ATA 81 | TURBINES (RECIPROCATING ENGINES) |
| ATA 82 | WATER INJECTION |
| ATA 83 | ACCESSORY GEAR BOX (ENGINE DRIVEN) |
| ATA 84 | PROPULSION AUGMENTATION |
| ATA 85 | FUEL CELL SYSTEMS |

### Miscellaneous

| ATA Number | ATA Chapter name |
| ATA 91 | CHARTS |
| ATA 97 | WIRING REPORTING |
| ATA 115 | FLIGHT SIMULATOR SYSTEMS |
| ATA 116 | FLIGHT SIMULATOR CUEING SYSTEM |

### Peculiar Military Chapters

| ATA Number | ATA Chapter name |
| ATA 92 | ELECTRICAL POWER MULTIPLEXING |
| ATA 93 | SURVEILLANCE |
| ATA 94 | WEAPON SYSTEM |
| ATA 95 | CREW ESCAPE AND SAFETY |
| ATA 96 | MISSILES, DRONES AND TELEMETRY |
| ATA 98 | METEOROLOGICAL AND ATMOSPHERIC RESEARCH |
| ATA 99 | ELECTRONIC WARFARE SYSTEM |

## ATA extended list (Out Of Date)
### ATA Specification 2200

The ATA extended List is a breakdown to para (second two numbers e.g. 5-00) and sub para (third two numbers e.g. 5-10-00) for each ATA chapter.

#### ATA Number and Para

01 INTRODUCTION
02 ORGANIZATION AND HANDLING OF THE MANUAL
03 GENERAL DESCRIPTION OF THE AIRCRAFT
04 AIRWORTHINESS LIMITATIONS
05 TIME LIMITS/ MAINTENANCE CHECKS
    -00 General
    -10 Time Limits
    -20 Scheduled Maintenance Checks
    -30 & -40 Reserved
    -50 Unscheduled Maintenance checks
06 DIMENSIONS AND AREAS
07 LIFTING & SHORING
    -00 General
    -10 Jacking
    -20 Shoring
08 LEVELING & WEIGHING
    -00 General
    -10 Weighing and Balancing
    -20 Leveling
09 TOWING & TAXIING
    -00 General
    -10 Towing
    -20 Taxiing
10 PARKING, MOORING, STORAGE & RETURN TO SERVICE
11 PLACARDS AND MARKINGS
    -00 General
    -10 Exterior Color Schemes and Markings
    -20 Exterior Placards and Markings
    -30 Interior Placards
12 SERVICING.
    -00 General
    -10 Replenishing
    -20 Scheduled Servicing
    -30 Unscheduled Servicing
13 UNSERVICING
    -00 General
    -10 Methods
    -20 Scheduled Unservicing
    -30 Unscheduled Unservicing
14 RESERVING
    -00 General
    -10 Replenishing
    -20 Scheduled Reservicing
    -30 Unscheduled Reservicing
15 OPERATIONAL CHECK GOOD
    -00 General
    -10 Standard Practices
    -40 Inspection and Observations
16 *Unassigned
17 *Unassigned
18 VIBRATION AND NOISE ANALYSIS (HELICOPTER ONLY)
    -00 GENERAL -
    -10 VIBRATION ANALYSIS
    -20 NOISE ANALYSIS
19 *Unassigned
20 STANDARD PRACTICES-AIRFRAME
    -00 Electrical Standard Items/Practices
    -90 *Reserved for Airline Use
21 AIR CONDITIONING
    -00 Air Conditioning - General
    -10 Compression
    -20 Distribution
    -30 Pressurization Control
    -40 Heating
    -50 Cooling
    -60 Temperature Control
    -70 Moisture/Air Contaminant Control
22 AUTO FLIGHT
    -00 General
    -10 Autopilot
    -20 Speed-Attitude Correction
    -30 Auto Throttle
    -40 System Monitor
    -50 Aerodynamic Load Alleviating
23 COMMUNICATIONS
    -00 General
    -10 Speech Communications
    -15 SATCOM
    -20 Data Transmission and Automatic Calling
    -30 Passenger Address, Entertainment and Comfort
    -40 Interphone
    -50 Audio Integrating
    -60 Static Discharging
    -70 Audio & Video Monitoring
    -80 Integrated Automatic Tuning
24 ELECTRICAL POWER
    -00 General
    -10 Generator Drive
    -20 AC Generation
    -30 DC Generation
    -40 External Power
    -50 AC Electrical Load Distribution
    -60 DC Electrical Load Distribution
25 EQUIPMENT/FURNISHINGS
    -00 General
    -10 Flight Compartment
    -20 Passenger Compartment
    -30 Galley
    -40 Lavatories
    -50 Additional Compartments
    -60 Emergency
    -70 Available
    -80 Insulation
26 FIRE PROTECTION
    -00 General
    -10 Detection
    -20 Extinguishing
    -30 Explosion Suppression
27 FLIGHT CONTROLS
    -00 General
    -10 Aileron & Tab
    -20 Rudder & Tab
    -30 Elevator & Tab
    -40 Horizontal Stabilizer
    -50 Flaps
    -60 Spoiler, Drag Devices and Variable Aerodynamic Fairings
    -70 Gust Lock & Dampener
    -80 Lift Augmenting
28 FUEL
    -00 General
    -10 Storage
    -20 Distribution
    -30 Dump
    -40 Indicating
29 HYDRAULIC POWER
    -00 General
    -10 Main
    -20 Auxiliary
    -30 Indicating
30 ICE AND RAIN PROTECTION
    -00 General
    -10 Airfoil
    -20 Air Intakes
    -30 Pitot and Static
    -40 Windows, Windshields and Doors
    -50 Antennas and Radomes
    -60 Propellers/Rotors
    -70 Water Lines
    -80 Detection
31 INDICATING/RECORDING SYSTEMS
    -00 General
    -10 Instrument & Control Panels
    -20 Independent Instruments
    -30 Recorders
    -40 Central Computers
    -50 Central Warning Systems
    -60 Central Display Systems
    -70 Automatic Data Reporting Systems
32 LANDING GEAR
    -00 General
    -10 Main Gear and Doors
    -20 Nose Gear and Doors
    -30 Extension and Retraction
    -40 Wheels and Brakes
    -50 Steering
    -60 Position Indication and Warning
    -70 Supplementary Gear
33 LIGHTS
    -00 General
    -10 Flight Compartment
    -20 Passenger Compartment
    -30 Cargo and Service Compartments
    -40 Exterior
    -50 Emergency Lighting
34 NAVIGATION
    -00 General
    -10 Flight Environment Data
    -20 Attitude & Direction
    -30 Landing and Taxiing Aids
    -40 Independent Position Determining
    -50 Dependent Position Determining
    -60 Flight Management Computing
35 OXYGEN
    -00 General
    -10 Crew
    -20 Passenger
    -30 Portable
36 PNEUMATIC
    -00 General
    -10 Distribution
    -20 Indicating
37 VACUUM
    -00 General
    -10 Distribution
    -20 Indicating
38 WATER/WASTE
    -00 General
    -10 Potable
    -20 Wash
    -30 Waste Disposal
    -40 Air Supply
39 *Unassigned
40 *Unassigned
41 WATER BALLAST
    -00 General
    -10 Storage
    -20 Dump
    -30 Indication
42 Integrated Modular Avionics (IMA)
43 Emergency Solar Panel System (ESPS)
44 CABIN SYSTEMS
    -00 General
    -10 Cabin Core System
    -20 In-flight Entertainment System
    -30 External Communication System
    -40 Cabin Mass Memory System
    -50 Cabin Monitoring System
    -60 Miscellaneous Cabin System
45 CENTRAL MAINTENANCE SYSTEM (CMS)
    -00 General
    -5 thru -19 CMS/Aircraft General
    -20 thru -49 CMS/Airframe Systems
    -45 Central Maintenance System
    -50 thru -59 CMS/Structures
    -60 thru -69 CMS/Propellers
    -70 thru -89 CMS/Power Plant
46 INFORMATION SYSTEMS
    -00 General
    -10 Airplane General Information Systems
    -20 Flight Deck Information Systems
    -30 Maintenance Information Systems
    -40 Passenger Cabin Information Systems
    -50 Miscellaneous Information Systems
47 NITROGEN GENERATION SYSTEM
48 *Unassigned
49 AIRBORNE AUXILIARY POWER
    -00 General
    -10 Power Plant
    -20 Engine
    -30 Engine Fuel and Control
    -40 Ignition/Starting
    -50 Air
    -60 Engine Controls
    -70 Indicating
    -80 Exhaust
    -90 Oil
50 CARGO AND ACCESSORY COMPARTMENTS
    -00 General
    -10 Cargo Compartments
    -20 Cargo Loading Systems
    -30 Cargo Related Systems
    -40 Aerial delivery
    -50 Accessory
    -60 Insulation
51 STANDARD PRACTICES, GENERAL
    -00 General
    -10 Investigation, Cleanup and Aerodynamic Smoothness
    -20 Processes
    -30 Materials
    -40 Fasteners
    -50 Support of Airplane for Repair and Alignment Check Procedures
    -60 Control-Surface Balancing
    -70 Repairs
    -80 Electrical Bonding
52 DOORS
    -00 General
    -10 Passenger/Crew
    -20 Emergency Exit
    -30 Cargo
    -40 Service and Miscellaneous
    -50 Fixed Interior
    -60 Entrance Stairs
    -70 Monitoring and Operation
    -80 Landing Gear
53 FUSELAGE
    -00 General
    -10 thru -90 (As Required) Fuselage Sections
54 NACELLES/PYLONS
    -00 General
    -10 thru -40 (As Required) Nacelle Section
    -50 thru -80 (As Required) Pylon
55 STABILIZERS
    -00 General
    -10 Horizontal Stabilizer or Canard
    -20 Elevator
    -30 Vertical Stabilizer
    -40 Rudder
56 WINDOWS
    -00 General
    -10 Flight Compartment
    -20 Passenger Compartment
    -30 Door
    -40 Inspection and Observation
57 WINGS
    -00 General
    -10 Center Wing
    -20 Outer Wing
    -30 Wing Tip
    -40 Leading Edge and Leading Edge Devices
    -50 Trailing Edge Trailing Edge Devices
    -60 Ailerons and Elevons
    -70 Spoilers
    -80 (as required)
    -90 Wing Folding System
58 *Unassigned
59 *Reserved for Airline Use
60 STANDARD PRACTICES - PROPELLER/ROTOR
61 PROPELLERS/PROPULSION
    -00 General
    -10 Propeller Assembly
    -20 Controlling
    -30 Braking
    -40 Indicating
    -50 Propulsor Duct
62 ROTOR(S)
    -00 General
    -10 Rotor blades
    -20 Rotor head(s)
    -30 Rotor Shaft(s)/Swashplate Assies
    -40 Indicating
63 ROTOR DRIVE(S)
    -00 General
    -10 Engine/Gearbox couplings
    -20 Gearboxes
    -30 Mounts, attachments
    -40 Indicating
64 TAIL ROTOR
    -00 General
    -10* Rotor blades
    -20* Rotor head
    -30 Available
    -40 Indicating
65 TAIL ROTOR DRIVE
    -00 General
    -10 Shafts
    -20 Gearboxes
    -30 Available
    -40 Indicating
66 FOLDING BLADES/PYLON
    -00 General
    -10 Rotor blades
    -20 Tail pylon
    -30 Controls and Indicating
67 ROTORS FLIGHT CONTROL
    -00 General
    -10 Rotor
    -20 Anti-torque Rotor control (Yaw control)
    -30 Servo-control System
70 STANDARD PRACTICES - ENGINES
71 POWER PLANT
    -00 General
    -10 Cowling
    -20 Mounts
    -30 Fireseals
    -40 Attach Fittings
    -50 Electrical Harness
    -60 Air Intakes
    -70 Engine Drains
72 ENGINE TURBINE/TURBO PROP DUCTED FAN/UNDUCTED FAN
    -00 General
    -10 Reduction Gear, Shaft Section (Turbo-Prop and/or Front Mounted Gear Driven Propulsor)
    -20 Air Inlet Section
    -30 Compressor Section
    -40 Combustion Section
    -50 Turbine Section
    -60 Accessory Drives
    -70 By-pass Section
    -80 Propulsor Section (Rear Mounted)
72 ENGINE - RECIPROCATING
    -00 General
    -10 Front Section
    -20 Power Section
    -30 Cylinder Section
    -40 Supercharger Section
    -50 Lubrication
73 ENGINE FUEL AND CONTROL
    -00 General
    -10 Distribution
    -20 Controlling
    -30 Indicating
74 IGNITION
    -00 General
    -10 Electrical Power
    -20 Distribution
    -30 Switching
75 AIR
    -00 General
    -10 Engine Anti-Icing
    -20 Cooling
    -30 Compressor Control
    -40 Indicating
76 ENGINE CONTROLS
    -00 General
    -10 Power Control
    -20 Emergency Shutdown
77 ENGINE INDICATING
    -00 General
    -10 Power
    -20 Temperature
    -30 Analyzers
    -40 Integrated Engine Instrument Systems
78 EXHAUST
    -00 General
    -10 Collector/Nozzle
    -20 Noise Suppressor
    -30 Thrust Reverser
    -40 Supplementary Air
79 OIL
    -00 General
    -10 Storage
    -20 Distribution
    -30 Indicating
80 STARTING
    -00 General
    -10 Cranking
81 TURBINES
    -00 General
    -10 Power Recovery
    -20 Turbo-Supercharger
82 WATER INJECTION
    -00 General
    -10 Storage
    -20 Distribution
    -30 Dumping and Purging
    -40 Indicating
83 ACCESSORY GEAR-BOXES
    -00 General
    -10 Drive Shaft Section
    -20 Gearbox Section
84 PROPULSION AUGMENTATION
    -00 General
    -10 Jet Assist Takeoff
85 RECIPROCATING ENGINE
    -00 General
    -10 Fuel Cell Stack
115 FLIGHT SIMULATOR SYSTEMS/WORK SIMULATION

#### Major Zones in Aircraft

    Zone 100 Fuselage Lower
    Zone 200 Fuselage Top
    Zone 300 Stabilizers / Empennage
    Zone 400 Nacelles-Pylons(RH)
    Zone 400 Nacelles-Pylons(LH)
    Zone 500 Left Wing
    Zone 600 Right Wing
    Zone 700 Landing Gear Compartment
    Zone 800 Doors
    Zone 900 Lavatories & Galleys

#### Major sub Zones in Aircraft

    Zone 100 Fuselage Lower
    Zone 200 Fuselage Top
    Zone 300 Stabilizers / Empennage
    Zone 400 Nacelles-Pylons
    Zone 500 Left Wing
    Zone 600 Right Wing
    Zone 700 Landing Gear Compartment
    Zone 800 Doors