WASHINGTON, D.C. - The U.S. Supreme Court on April 2 denied retired pilots' petition seeking review of a divided ruling by the District of Columbia Circuit U.S. Court of Appeals that held that interest is due under the Employee Retirement Income Security Act only if the delay in payment of a lump-sum pension payment is "unreasonable" (James C. Stephens, et al. v. US Airways Group, Inc., et al., No. 11-721, U.S. Sup.).