A medical episode was reported aboard a JetBlue Flight arriving at Logan International Airport Tuesday night, said a spokeswoman for the airline. Flight 462 departed from Fort Myers, Fla., at 5:02 p.m. and arrived in Boston at 7:47 p.m. There were 149 passengers and five crew members onboard. Medical authorities met the aircraft at Logan, JetBlue said. No other details were available from JetBlue, MassPort, the State Police, or the Suffolk district attorney’s office.