More than 21,000 passengers were affected and 136 flights were cancelled in Colombia, following the emergency landing of a commercial plane at a major airport near the city of Medellin, Civil Aviation Director Jair Orlando Fajardo said Wednesday.More than 21,000 passengers were affected and 136 flights were cancelled in Colombia, following the emergency landing of a commercial plane at a major airport near the city of Medellin, Civil Aviation Director Jair Orlando Fajardo said Wednesday.