[Capt. Tom]

It’s being said that there was almost 2 mins between the 2 missiles. (1 min 53 sec is what I heard)

The plane might have taken that long to crash, after the first missile hit, but the missiles were fired close together in time.

From the Business Insider--
The video shows the plane being struck by the first missile, which appeared to result in a small explosion, followed by the second missile strike about 20 seconds later.

[nuconvert]

1 min 53. sec. was according to a Calif. based journalist.