Hawaiian Airlines announced today that it has reached tentative agreement with its mechanics union on a four-year contract.

The International Association of Machinists and Aerospace Workers, District 142, includes 600 employees working as aircraft inspectors, mechanics, line service, cleaners, and contract service personnel. Union members are expected to vote on the new contract in the coming weeks.

The union said on its Web site that the agreement calls for yearly pay increases of 5 percent, 3 percent, 3 percent and 4 percent, plus returned holidays.

The union said its negotiating committee is unanimously recommending ratification of the contract.

Hawaiian's mechanics union is the last of the company's labor groups to reach a new agreement. The airline previously negotiated new labor contracts with its pilots, flight attendants, clerical workers, and dispatchers.