Gerry Brownlee's accused of telling porkies over his airport security breach.

The Civil Aviation Authority's released a redacted version of its inquiry into the July incident at Christchurch Airport.

The former Transport Minister maintains he knocked on a secure door and asked an airport staffer to let him through.

But that worker says Mr Brownlee's staff opened the door and the trio walked past before he could stop them.

Labour's Chris Hipkins says he believes the airport employee.

"Gerry Brownlee is displaying the patterns of behaviour that we see a lot from the National government ministers, which is when they're caught out they deny it and they try to lie their way out of it."