AIRCRAFT SYSTEMS

The ATA 100 numbering system is a foundational reference standard in the aviation industry, widely used for commercial aircraft documentation. Established by the Air Transport Association (ATA) on June 1, 1956, this system facilitated easier learning and comprehension for pilots, aircraft maintenance technicians, and engineers. While officially superseded, the ATA 100 remained prevalent until 2015, particularly in general aviation documentation.

You'll find the ATA 100 code used in crucial areas like aircraft failure messages for efficient troubleshooting and post-flight repairs. It's also essential for electronics and printed manuals vital for the safe and correct operation of aircraft. The ongoing advancements in aviation technology, both domestically and internationally, underscore the importance of these standards for continued aviation safety.

The Joint Aircraft System / Component Code Table (JASC) emerged as a modified version of the original ATA 100 code. Developed by the FAA's Regulatory Support Division (AFS-600), the JASC adopted a new four-digit format coupled with concise code titles. In some instances, the titles were abbreviated to enhance clarity regarding the code's intended application. The FAA officially published the final version of the JASC / ATA 100 code in 1999, solidifying its role in aircraft documentation and maintenance.