Prospect and HIAL have met three times since Prospect members overwhelmingly voted to take industrial action. The negotiations have not resolved the dispute. Both sides have agreed to seek support from the conciliation service, ACAS to attempt resolution.

Prospect air traffic controllers working for Highlands and Islands Airport Limited will take strike action on 26 April in protest at their 2018-19 pay offer.

Staff at the institute were without progression for almost a decade following the introduction of UK public sector pay austerity.