Germania D-AGEY is former Sterling OY-MRH and now Soutwest Airlines N 7817J At TFS.
Seeing at KPAE is this 737-79L being prepared for entry into service with Southwest Airlines.
Leased from Aircastle still in basic Sterling colors. Since November 5th, 2014 with reg. N7817J leased by Southwest Airlines from Aircastle.
Departing out of rwy 36L on better days for this airline [1200 pix]