Probably this one: http://www.airport-data.com/aircraft/photo/189837.html
N31TN
Serial number: U49
N-number: N31TN
Cerificate issued: Saturday, August 11, 2007
Manufactured year: 1969
currently: reg 6/5/08 Katmai Air Leasing, Anchorage AS
Was the only B.99 registered to Alaska A/T now Katmai A/Lease
John