The pilots' union at Aer Lingus says it is considering the details of a letter from chief executive Dermot Mannion last night.
The letter contained new proposals in a bid to break the deadlock over the company's plans to establish a new base in Belfast.
Mr Mannion said pilots from the Republic could transfer permanently or on temporary secondment, but must accept different terms and conditions while in Belfast. Aer Lingus will also recognise the Irish Airline Pilots' Association as the representative body for Belfast pilots. The new base is due to go into operation on December 10.
IALPA said the airline's recognition of the association at the Belfast base was a welcome development, as was the company's willingness to facilitate transfers without a requirement to resign, as had previously been the case. But it said important issues remained to be settled.
Aer Lingus said pilots transferring to the North permanently must move to the lower terms and conditions in Belfast. They must leave the guaranteed pension in the Republic and join a new defined contribution scheme in the North. Some pilots may be seconded to the North for up to five years.
During that time they will be on Belfast terms and conditions but will revert to Republic terms if they move back to the Republic. They retain their guaranteed pension rights and service, according to Mr Mannion's letter.
First officer salaries will range from £40,000 to £50,000 sterling, while captains can earn from £76,000 to £96,520. Promotions to captain's positions in Belfast would be on merit, not seniority.
