Baggage handlers, cabin crew and security staff are among the hundreds of airport workers set to take action over better wages, safety conditions and job security.

Disruptions are expected across all major cities on Friday, including Perth, with workers in the industry seeking parity for the same jobs, across different companies.

Transport Workers Union’s Michael Caine says many airport staff are paid below award rates and kept on part-time contracts for years.

“And, on top of all that, we just had a horrific survey results from Qantas showing 1 out of 4 aviation workers in that operation have said they’ve been sexually harassed in the last 12 months but only 3 percent of them are willing to report it,” he said.

The action will affect T3 and T4 at Perth Airport from 1pm on Friday.