Boeing to extend labour contract with engineer's union by four years

(Reuters) - U.S. planemaker Boeing Co said it has agreed to a tentative deal with its engineers' union to extend its labour contract by another four years.Under the agreement, an incentive plan for employees will be raised to 5% of eligible earnings from 3.85%, the company said late on Thursday. It will also establish fixed salary adjustment funds for each year from 2020 through 2026. Boeing's current contract is set to expire in 2022.The contract with Society of Professional Engineering..