TCAS averts possible head-on collision in Austin

On October 16, 2024, a potential mid-air collision was averted in Austin when the Traffic Collision Avoidance System (TCAS) alerted the crew of an American Airlines 737 as it was preparing to land. The incident involved the American Airlines flight (N800NN) and a Cessna R182 Skylane (N738PG), which turned into the final approach path for Runway 36L without coordinating with the Austin approach controller. The two aircraft came alarmingly close, separated by only 400 feet, as the Cessna flew beneath the 737. The Cessna was initially flying westbound but unexpectedly turned south into the approach path, leading to the TCAS Resolution Advisory (RA) for the 737 pilots. TCAS RAs provide immediate instructions to pilots to prevent mid-air collisions. The American Airlines crew reported losing visual contact with the Cessna just before the TCAS alert was issued. The incident highlights the importance of communication and coordination in aviation to ensure safety during critical phases of flight.

- A potential collision was averted between an American Airlines 737 and a Cessna in Austin.

- The Cessna turned into the approach path without prior coordination, prompting a TCAS alert.

- The two aircraft were only 400 feet apart at the closest point.

- TCAS RAs are crucial for preventing mid-air collisions by providing immediate pilot instructions.

- The incident underscores the need for effective communication among pilots and air traffic control.