OldPerson74602 Amongst other things, they were testing a fire retardant in the fuel (it didn’t work). Source: an engineer I worked for attended the test. Our product was a competing fuel additive.
![NASA crashes a fully fueled Boeing passenger jet, with crash dummies as passengers and pilots. The knowledge gained leads to major changes for flight safety. (album and video in comments.) Mojave Desert, 1984 [2000 x 1331]](https://i.redd.it/odtjrohsxbk41.jpg)
EricFromOuterSpace
16mm video of the test crash here
OldPerson74602
Amongst other things, they were testing a fire retardant in the fuel (it didn’t work).
Source: an engineer I worked for attended the test. Our product was a competing fuel additive.