[TADSLOS]

Looks like an access panel. Definitely military. Interesting weather stripping.

[elcid1970]

I’ve heard of a bolt from the blue, but this is ridiculous!

[pfflier]

Yup, access panel not a door. One side obviously is hinged but the three latches on the other side, by the weather stripping wouldn't be used on a crew access "door".

The color would be unique to HH-60s of the 66th RQS Jolly Green Giants based at Nellis. No other USAF plane is green now.

Could also be army but the shade of green appears wrong for the army UH-60s.