Army Hangar Escape

You are a soldier in the war. The general asked you to get something from the hangar. When you went in, the door closed and it won't open. Let's look around if there is an alternative exit. This place is full of different items, so you can find things that can help you in the escaping process. There is an openable window where you could get out, but it's locked with 2 different locks. The keys should be somewhere in there. They are probably hidden, but this can't be a problem for you. Let's find the necessary keys to get back to the general!