ATA Chapter Codes
| Ordered Alphabetically by System | ||
|---|---|---|
| CH | System | |
| 83 | Accessory Gear Boxes | |
| 21 | Air Conditioning | |
| 49 | Airborne Auxiliary Power | |
| 22 | Autopilot | |
| 91 | Charts | |
| 23 | Communications | |
| 52 | Doors | |
| 24 | Electric Power | |
| 72 | Engine | |
| 75 | Engine Air | |
| 76 | Engine Controls | |
| 78 | Engine Exhaust | |
| 73 | Engine Fuel & Control | |
| 74 | Engine Ignition | |
| 77 | Engine Indicating | |
| 79 | Engine Oil | |
| 72 | Engine Reciprocating | |
| 80 | Engine Starting | |
| 72 | Engine Turbine | |
| 82 | Engine Water Injection | |
| 25 | Equipment & Furnishing | |
| 26 | Fire Protection | |
| 27 | Flight Controls | |
| 28 | Fuel | |
| 53 | Fuselage | |
| 29 | Hydraulic Power | |
| 30 | Ice & Rain Protection | |
| 31 | Instruments | |
| 32 | Landing Gear | |
| 33 | Lights | |
| 54 | Nacelles/Pylons | |
| 34 | Navigation | |
| 35 | Oxygen | |
| 11 | Placards | |
| 36 | Pneumatic | |
| 71 | Power Plant-General | |
| 61 | Propellers | |
| 55 | Stabilizers | |
| 70 | Standard Practices Engine | |
| 60 | Std. Practices-Props | |
| 51 | Structures | |
| 81 | Turbines | |
| 37 | Vacuum | |
| 38 | Water/Waste | |
| 56 | Windows | |
| 57 | Wings | |
| Ordered Numerically by Code | |
|---|---|
| CH | System |
| 11 | Placards |
| 21 | Air Conditioning |
| 22 | Autopilot |
| 23 | Communications |
| 24 | Electric Power |
| 25 | Equipment & Furnishing |
| 26 | Fire Protection |
| 27 | Flight Controls |
| 28 | Fuel |
| 29 | Hydraulic Power |
| 30 | Ice & Rain Protection |
| 31 | Instruments |
| 32 | Landing Gear |
| 33 | Lights |
| 34 | Navigation |
| 35 | Oxygen |
| 36 | Pneumatic |
| 37 | Vacuum |
| 38 | Water/Waste |
| 49 | Airborne Auxiliary Power |
| 51 | Structures |
| 52 | Doors |
| 53 | Fuselage |
| 54 | Nacelles/Pylons |
| 55 | Stabilizers |
| 56 | Windows |
| 57 | Wings |
| 60 | Std. Practices-Props |
| 61 | Propellers |
| 70 | Standard Practices Engine |
| 71 | Power Plant-General |
| 72 | Engine |
| 72 | Engine Turbine |
| 72 | Engine Reciprocating |
| 73 | Engine Fuel & Control |
| 74 | Engine Ignition |
| 75 | Engine Air |
| 76 | Engine Controls |
| 77 | Engine Indicating |
| 78 | Engine Exhaust |
| 79 | Engine Oil |
| 80 | Engine Starting |
| 81 | Turbines |
| 82 | Engine Water Injection |
| 83 | Accessory Gear Boxes |
| 91 | Charts |
