Detailed Instructions: Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
Q: Context : China Southwest Airlines Flight 4146 was an Ilyushin Il-18 that crashed near Chongqing, China on 18 January 1988 with the loss of all 108 passengers and crew.
Answer : 18 January 1988
A:
The date of China Southwest Airlines Flight 4146 was what?