This video show Loretta in the plane wearing the same outfit as that given by the Dept. of Health.
http://abcnews.go.com/US/harrowing-video-hawaiian-plane-crash-inside-cabin/story?id=21484715
It is strange that she doesn’t seem to be wearing the same thing in the water. The woman looking in the direction of the camera sure looks like her to me.
So she is evidently one of the passengers by the door of the plane. We can’t really see if she is in any distress, but since the guy who swam to shore said no one was in distress, I’m going to assume he is correct.