As of Feb. 1, aircraft operators have just 11 months remaining to meet the equipage mandate for automatic dependent surveillance-broadcast (ADS-B) Out.

Since that deadline was established a decade ago, those hoping it might yet be extended are likely to be disappointed. And if not so equipped, and certified as in compliance, the aircraft essentially cannot be operated in controlled airspace as of Jan. 1, 2020.

How many airplanes need to be upgraded? Paula Derks, president of the Aircraft Electronics Association, recently cited the FAA estimate that more than 100,000 airplanes still need to equip, and so, “It’s going to be a busy year for avionics shops to meet the installation demand.”

Since the shop backlog is likely to be long, she predicts installations will continue “well into 2020 and even into 2021.”

As for the looming deadline, Ed Bolen, president and CEO of the NBAA, sees the situation as “a long way to go and a short time to get there” and thus the heightened need for “awareness, understanding, scheduling and capacity.”