An investment group led by Asher B. Edelman reduced its holding in Lucky Stores to 4.8% to comply with a standstill agreement . . . Security Pacific received Federal Reserve Board approval for its previously announced acquisition of Orbanco, parent of Oregon Bank . . . Allegheny International Inc. shareholders claim the $24.60 per share being offered for the company by First Boston Corp. is inadequate, and have asked a federal judge to block a proposed buyout. . . . Loral Corp. has completed the acquisition of Goodyear Aerospace Corp. for $588 million in cash. Goodyear Aerospace will be known as Loral Systems Group.