Originally Posted by fumje

What is happening with N213UA? Some kind of protracted maintenance issue?

Flightaware shows it doing a bunch of ferries, going
7-OCT EWR-SFO UA1780 [last apparent normal revenue flight, significantly delayed]
8-OCT SFO-IAH UA3935
9-OCT IAH-MSP UA2500
9-OCT MSP-ORD UA2564
12-OCT ORD-MSP UA2564 [tentative]
12-OCT MSP-IAH UA2500 "
12-OCT IAH-DEN UA2565 "

https://www.flightaware.com/live/flight/N213UA

Also does UA do some maintenance at MSP? I don't see anything about it in the wiki.