The FAA accuses Southwest of failing to inspect a St. Louis-bound plane after it lost cabin pressure on May 13, 2013. The cabin pressure loss prompted pilots to make an emergency landing in Baltimore, and the cabin pressure loss also caused the plane's oxygen masks to deploy.
The FAA says that Southwest mechanics didn't inspect to see if the cabin pressure change damaged the plane, nor did mechanics replace used oxygen bottles. That plane was reportedly used for 123 flights until June 3, when it was inspected.
The second proposed civil penalty stems from putting off repairs and not accurately logging them.
The FAA says in March 2013, the pilot of an AirTran Airways plane operated by Southwest found a problem with ice and water coming from its galley vent.
The FAA says crews put off fixing the problem for weeks, claiming an exemption, and did not detail the issue in the plane's logbook. The plane also reportedly flew many times before proper repairs were made.
Southwest has asked to meet with the FAA regarding the penalties.