DL in ANC July 9, 2007. "We are sorry but your flight will be delayed by 12 hours. We have a faulty window & need to fly in a mechanic from SLC to fix it."
AS 20 minutes out of SEA Aug. 12, 2007. 20 minutes into the flight we turn back due to an electrical problem that "Isn't a problem now but could become one before we reach ANC". Pilot made it sound like it was noticed before takeoff & they then did not want to take a chance.