[COEXERJ145]

It was a Philippine Airlines 737-3Y0 that had its center fuel tank blow up on the runway in Manila.

Also, the destruction of a Thai Airways International 737-4D7 is believed to have also been a spontaneous ignition of the center fuel tank.

And for those who don't know, the design of the center fuel tank on many older models of the 737 and 747 are identical except in size.

[itsahoot]

is believed to have also been a spontaneous ignition of the center fuel tank.

My Understanding is that tey injected Propane into their test tank to try and prove their theory, and even that didn't work.

You might notice that they didn't ground all those planes as one would assume they should.