Well, first it was a 720. The airplane entered a dutch roll just before touch down and skewed the results of the test, in that the plane didn't hit some cutting structures planted on the ground squarely. These were supposed to cut the wing skins but ended up slicing the hot engines wide open. The fuel additive did work as advertised, the acutal flame temperatures were much lower than those seen in an untreated JET "A" fuel fire.

An odd side note the ACLU actually sued the FAA over the placement of the crash dummies. The dummies were delivered in two batches. The FAAers just started loading them front to back in the plane as they arrived. As it worked out all the dark skinned dummies were in the back of the plane. The suit was brought to make the distribution of light skinned and dark skinned dumies uniform throughout the cabin. Ironically this was the test that revealed you have a much higher probability of surviving in the tail.

I was the Safety Officer for the C/KC-135 fleet when this test was performed and followed it very closely.