AIR New Zealand is investigating staff after ill-behaved snaps of a pilot posing with a sex blow-up doll in a cockpit surfaced online.

The images are said to have been shared on Facebook and Instagram after crew members uploaded them on Snapchat.

1 Air New Zealand said it was "appalled" by this inappropriate snap by one of its pilot Credit: NZ Herald

One pic shows a pilot kissing an inflatable doll in the cockpit.

Some observers are claiming the pilot selfie is a tribute to a scene from 1980 spoof of classic Airplane!, in which an automatic pilot is deployed in the cockpit – in the form of a blow-up doll.

Another video shows an air hostess walking through a cabin spitting water with the caption: "Wish I could spit on passengers like this".

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But the company said it was "shocked and appalled" by the sick content posted online, according to One News.

A spokesperson for the airline said: "One of the staff members concerned no longer works for Air New Zealand and the other two have been removed from duties pending the outcome of our investigation."

“It goes without saying that this is a situation we are treating with extreme seriousness — and our obvious concern is that the behaviour displayed is a clear breach of not just our code of conduct but basic decency.

“We expect the highest standards of behaviour and respect from all our staff.”