
Looks like it was a test of a suppression system in New York. The jet is an F-16 judging by the single vertical stabilizer over a single integrated engine. I initially found the picture in this fire protection post but the source is probably this Air Force blog post which is now lacking a picture.
Cleanup would’ve been messy and likely pollute the surrounding area but an important aspect of fire suppression foam like this it that it wouldn’t harm the entirely-too-expensive aircraft.









Ah yes, child abuse, the solution to all of our problems.