Originally Posted by
N227UA
They do "selective" gate check for UA at NRT. Randomly pick some pax for bag check and "body" check. If you board with the crowd, the chance of being picked is low. However if you're the last pax to board (which I almost always do) or something like that, you'll surely be screened. I understand while all pax for UA are subject to gate screen at ICN, that's only for bag check.
I'm actually doing NH out of NRT. Guess I'll find out in a minute as it's time to board!