Recently several United Airline aircraft have been flying into the Rockford Airport (KRFD) and staying.
I was told they are here to be parked, since things are slow, since the Covid-19 pandemic. And while they are here, they are being maintained at the AAR.
I went out by the airport earlier today, and saw EMBRAER EMB-550 Legacy 500 geting ready to take off on runway 1/19. And the saw all the United Airline aircraft parked on the AAR ramp. And I also noticed they had runway 7/25 closed down. I did not see why. I just saw the X on the runway and several workers out on the field. If you get the chance, go out there and check it out. Probably a once in a lifetime thing. 🙂