An Air New Zealand employee who emailed senior executives comparing his boss's leadership to Saddam Hussein's regime was justifiably disciplined, the Employment Relations Authority has found.
Mataiasi Tuioti, who worked as a technician in the airline's Gas Turbines division, received a final warning for the four-page email, sent in May last year.
It was sparked by redundancies at Gas Turbines, which Mr Tuioti felt could have been avoided with better business practices.
Mr Tuioti had repeatedly asked to have a meeting with his boss, John Callesen, but had been told to "bullet point his concerns in an email".
However he decided he was being ignored by Mr Callesen and needed to elevate the issue.