Originally Posted by Spooledup

I had an ex F16 guy in the jumpseat and he said they might have used their "EPU" (not sure what it stands for), but it basically supplies them temporary power in an emergency. Kind of like a time limited APU. It runs on Hydrazine which he said is super hazardous material. If deployed, they had to wait all day for a hazmat team (maybe military) to get there to secure the aircraft. I saw guys out there in blue suits, so his story may be accurate.

It was 18C by the way.