Airplane status - boarding delayed check in? Can someone please help me out? What do the following mean?  

1) 过站登机
2) 正在值机

These are found at the airport regarding flight statuses. Does it mean boarding, delayed, check in etc? Thanks!
过站登机 transit boarding
The original passengers are boarding now.
过站 is the same as 经停 or 过境.

正在值机 checking in