China Southern Airlines might want to invest in a more engaging safety precaution video.

The latest in a series of emergency exit door mishaps on the airline saw a 50-year-old Chinese woman open the emergency hatch because she mistook it for the toilet door, local reports say.

In her haste to use the bathroom, she even managed to deploy the emergency slide, as the plane was getting ready to take off from Chongqing Airport, reported The Beijing News.

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The flight last Friday was bound for Shenzhen, China, and experienced a two hour delay, as a result.

According to several passengers on flight CZ3456, who took to their Weibo accounts to recount the incident, a loud hissing sound was heard and people started to panic.

Image: weibo

The crew proceeded to evacuate the plane, so airport staff could investigate the matter and fix the problem.

Whoops. Image: weibo

The unnamed passenger later told staff that it was her first time onboard an airplane and she had thought that there was another bathroom behind the emergency exit door. She was trying to avoid the snaking queue for the real bathroom when the incident took place.

Although no one was injured, airport authorities are investigating the disturbance. Chinese civil aviation law dictates that passengers found to endanger flight safety can be held criminally liable.

Just earlier this month, a man caused flight delays on a China Southern Airlines flight when he opened the plane's emergency exit door to get some fresh air.

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