Aircraft Manuals ATA– Air transport Association of America

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A.T.A. 100 This is a universally accepted system for numbering aircraft maintenance documentation. The chapter number assigned to a specific system is the same, regardless of aircraft manufacturer. For example, ATA Chapter 21 is “Air Conditioning” on Boeings, Lockheeds, Airbus, etc.

Revisions must be up to date

ATA Chapters Each “Chapter” represents a major aircraft system. Such as… 21 Air conditioning 22 Auto flight 23 Communications 24 Electrical Power 25 Equipment and Furnishings

Subsections 21 31 Cabin Pressure Controller 21 32 Cabin Pressure Indicator 21 33 Pressure Regulation/Outflow valve 21 34 Cabin Pressure Sensor

Components A third number completes the ATA chapter reference, and is usually used to define a specific component in a subsystem. For example…27 10 14 27 00 FLIGHT CONTROL SYSTEM 27 10 ROLL CONTROL 27 10 14 AILERON The 14 denotes the specific component in the aileron control system…in this case, the aileron itself

Cessna and small aircraft

Each Section is laid out in order: *Disassembly *Cleaning Inspection Repair Reassembly Troubleshooting

Parts Manuals

As a part number is an identifier of a part design (independent of its instantiations), a serial number is a unique identifier of a particular instantiation of that part design. In other words, a part number identifies any particular (physical) part as being made to that one unique design; a serial number, when used, identifies a particular (physical) part (one physical instance)