Why do HNA ground crew need to check their passes when entering the cabin?

The ground crew of Hainan Airlines need to check their passes when entering the cabin for the following reasons:

1. security considerations: in order to ensure the safety of the cabin, airlines will verify the identity and check the safety of passengers entering the cabin. The ground crew needs to verify their identity and pass to ensure legal entry into the engine room.

2. Maintenance of order in the engine room: Ground crew need to maintain order in the engine room to ensure the comfort and safety of passengers. Checking the pass can prevent unauthorized personnel from entering the engine room and avoid unnecessary trouble and confusion.

3. Abide by airline regulations: Airlines have strict safety regulations and procedures, including identity verification and inspection of people entering the cabin. Checking the pass is one of the procedures in line with airline regulations to ensure the safety and order of the cabin.