Task: Question Generation
Input (English): Context : On 13 September 2010, Conviasa Flight 2350, operated by an ATR 42-320, registration YV1010, crashed shortly before landing in Manuel Carlos Piar Guayana Airport, Ciudad Guayana, on a domestic scheduled passenger flight from Santiago Mariño International Airport, Porlamar, Isla Margarita, Venezuela killing 17 of the 51 people on board. 
Subject : Conviasa Flight 2350 
Relation : point in time
Output (English): The point in time of Conviasa Flight 2350 was when?