You will be given a context, a subject and a relation. Your task is to generate a question based on the subject and relation. The generated question should include the given subject. Try to use a minimum number of words that are not present in either context, subject or relation while generating question.
Q: 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 Marino International Airport, Porlamar, Isla Margarita, Venezuela killing 17 of the 51 people on board.
Subject : Conviasa Flight 2350
Relation : point in time
A:
The point in time of Conviasa Flight 2350 was when?