Because the plane was not allowed to take up arms because they could be a danger to other passengers. May cause injury or death. Officials with rigorous checks for passengers to get security.
The aircraft was not allowed to take up arms because it could be a danger to other passengers. Could cause injury or death. Authorities took stringent checks passengers are safe.
Because the aircraft are not allowed to bring weapons up because it might be dangerous to other passengers. May damage or death. Officials then check strictly to passengers will be safe.