How does Sara managed to pass security with gun?

I am surprised that no posts on RuMya's side are made. Though this show is impressing me in many ways there are some stupidities shown in the show. The question of party in flight is answered as its a private plane. But how come Sara pass the security with guns and bullets with her? The security catches even if we some household items with us but the security machine could not detect a gun and bullets? Was there no CCTV in washing section of ladies washroom that anyone come and shoot an air hostess before changing into her uniform? Even if it was a private plane, it had only 2 crews- an air hostess and a pilot. What about one more air hostess and other people in the cockpit along with the pilot? Kise bewakoof bana rahe hai cvs? Also, none of the crews recognized that Sara is not one of them. Terrorist hijack would have been logical than what we saw. When Rudra was trying to handle Sara, Adiya was just standing instead of helping him.

Just like how many hijacks happen still .When ppl can enter ny airport and do shootout so it is no big deal.Had they shown sara past wat if she was an airhostess too in past or was their any dialogue which said she wasnt