(Washington, DC)  --  The latest figures from the National Transportation Safety Board say the number of aviation accidents in Washington state is declining.  The NTSB says Washington had 47 fatal and non-fatal accidents in 2014, 36 in 2015 and 33 in 2016.  The agency says including the crash of a small plane in Mukilteo this week, Washington has had seven reported airplane accidents so far in 2017.  But officials note that more than six months remain until the end of the year.