A company that makes the so-called black boxes -the flight data recorders- is leaving Sarasota County after nearly 40 years.

L3 Aviation Products and its staff of about 140 are packing up and moving to St Petersburg.

But the manufacturing operation of three dozen or so will now be consolidated with the company’s other operations in Michigan.

Three years ago, there were more than 200 manufacturing workers locally. The rest of the jobs had slowly begun to shift to Michigan until this year, when a total shutdown was planned.