No Precheck yesterday at BOS Terminal B
 

Was at Logan yesterday (Wednesday). 4pm, many business travelers, and TSA had all the Precheck lanes shut down. Is this a regular occurrence there?

What side of B? If you are on the US Airways side, did you go down to the Shuttle check-in? That's where it is on that side, not at the main checkpoint.

Not sure on the other side of B - never cleared there. The entire terminal is now connected airside.

I walked the length. There are three security entrances, and all three had their PreCheck lanes closed.

Did you get the little card for expedited security? Or was it full body scanners for everyone?

They used a red-ink stamp on my boarding pass that said, "Expedited," and I was able to use the WTMD with other standard "expedited" dispensations, but the feeder line was in the same (long) line as the people going through the scanner, so it saved me no time at all.