feature S T O R Y B Y D A L E S M I T H NO MATTER HOW YOU MEASURE IT, THE AFTERMARKET AVIONICS BUSINESS IS ENJOYING GREAT HEALTH. BUT THAT DOESN'T MEAN THAT SHOP OWNERS AND MANAGERS ARE SLEEPING PEACEFULLY EVERY NIGHT. 54 avionics news * april 2018 udging by the 2017 year-end AEA Avionics Market Report, there should be cause for great celebration in the retrofit avionics world. After all, total sales for the year exceeded $2.3 billion in 2017, with retrofit sales surging more than 20 percent from the previous year. And that's not including the cost of labor and secondary items. "The sales growth in the retrofit market is the obvious headline for the year," said AEA President Paula Derks. "With more than a 20 percent increase in sales, the retrofit