- Air Carrier Operational Approval and Use of TCAS II
- Date issued
- Office of Primary Responsibility
This advisory circular (AC) provides an acceptable, but not the only, means to address Traffic Alert and Collision Avoidance System (TCAS) issues related to installation and use of TCAS II regarding compliance with Title 14 of the Code of Federal Regulations (14 CFR) parts 121, 125, and 129 requirements for air carriers.
- AC 120-55C Including Change 1 (PDF)
- AC 120-55C (PDF)
- Introductory Booklet (PDF)