[wideminded]

has any fuel tank explosion happened on any other plane in history?

A 2007 article says there have been 17 such incidents since 1960, although TWA 800 was the worst.

Here are a couple of others:

Philippine_Airlines_Flight_143

Thai_Airways_International_Flight_114

[okie01]

Thai_Airways_International_Flight_114 /I>

This proved to be an assassination attempt. The explosion was actually caused by explosives (RDX, PETN, etc.).