Boeing's new tentative contract offering a 25% raise over four years.Stephen Brashear/Getty ImagesBoeing's new tentative labor contract offers a 25% increase to Seattle employees over four years.Some union members are unsatisfied with the new contract, which falls short of their ask: a 40% pay rise.Employees also want to reinstate a pension plan, which was discontinued a decade ago.Boeing's new tentative labor contract, which includes a pay increase over four years, has been touted as another win for the beleaguered company.But some workers are still unsatisfied, Jon Holden, president of the IAM's district 751 and lead negotiator on the Boeing contract, told Reuters on Monday.The company's tentative contract, proposed on Sunday, would increase its workers' general wages by 25% over the length of the four-year contract.