Airport operator BAA is set to meet with trade unions on Monday in a bid to avoid possible strike action.
The meeting has been set for 12 noon in the Advisory, Conciliation and Arbitration Service (ACAS) offices, ACAS has confirmed.
A BAA spokesperson said: "We look forward to meeting the trade unions at ACAS on Monday and are ready to meet over the weekend or any time that the unions are available.
"We hope that we can quickly conclude an agreement, in the interests of the travelling public, our airlines and our staff."
Unions PCS and Unite have confirmed they will be attending the meeting.
PCS (Public and Commercial Services Union) represents around 300 BAA staff members. The majority of PCS members voted against taking industrial action, by a small margin: 46.6% voted for, while 53.5% voted against.
A PCS spokesman told ABTN that despite the rejection of industrial action short of a strike, the union is still committed to negotiating improved pay.
"Members had previously rejected the pay offer. We are still clear that there is a fair settlement to reach," he said.
Unite, which represents more than 6,000 BAA security staff, engineers, firefighters and support staff across six British airports, voted in favour of strike action.
The dispute is over the offer of a 1% pay rise plus 0.5% increase which is conditional on changes to a sickness agreement by BAA.
Brian Boyd, Unite's national officer for civil aviation, said: "Last year BAA's employees accepted a pay freeze to help the company because they understood the difficult financial operating environment within civil aviation.
"A pay offer of 1% plus the withdrawal of two payments worth over £1,000 is simply confrontational.
"BAA has constantly ignored the contribution its employees make to the ongoing success of the business. Unite members have delivered a strong message that they deserve more."
Officials at Unite will also discuss on Monday the dates of any walkouts. It must give at least seven days notice before starting a strike.
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