10. PENSION PLANS

The following table is a consolidated disclosure of all domestic and foreign defined benefit pension plans as described in the Corporation’s 2018 Annual Report on Form 10-K filed with the SEC.

Pension Plans

The components of net periodic pension cost for the three months ended March 31, 2019 and 2018 are as follows:



	Three Months Ended
	March 31,
(In thousands)	2019			2018
Service cost	$	5,826		$	6,506
Interest cost	7,372			6,534
Expected return on plan assets	(14,884		)	(14,716		)
Amortization of prior service cost	(71		)	(63		)
Amortization of unrecognized actuarial loss	2,592			3,906
Net periodic benefit cost	$	835		$	2,167

The Corporation does not expect to make any contributions to the Curtiss-Wright Pension Plan in 2019. Contributions to the foreign benefit plans are not expected to be material in 2019. During the three months ended March 31, 2018, the Corporation made a $50 million voluntary contribution to the Curtiss-Wright Pension Plan.

Defined Contribution Retirement Plan

Effective January 1, 2014, all non-union employees who were not currently receiving final or career average pay benefits became eligible to receive employer contributions in the Corporation's sponsored 401(k) plan. The employer contributions include both employer match and non-elective contribution components. Effective January 1, 2019, the Corporation increased the employer match opportunity, raising the maximum employer contribution from 6% to 7% of eligible compensation. During the three months ended March 31, 2019 and 2018, the expense relating to the plan was $5.4 million and $4.2 million, respectively. The Corporation made $10.9 million in contributions to the plan for the first quarter of 2019, and expects to make total contributions of $15.1 million in 2019.