ARINC Characteristic 735B-2:2015

This document defines a Traffic Surveillance capability for NextGen and SESAR airspace environments. Supplement 2 adds hybrid surveillance functionality. It satisfies recent updates to FAA Airworthiness Circular AC 20-151B - Airworthiness Approval of Traffic Alert and Collision Avoidance Systems (TCAS II), and Technical Standard Order TSO-119d requiring the annunciation of a hybrid surveillance failure. Supplement 2 also adds strobe program pinning, updates TCAS inputs status, improves aircraft troubleshooting, and supports recent central maintenance computer function block point updates.