Rainier National Bank, whose $1.2-billion acquisition by...

Rainier National Bank, whose $1.2-billion acquisition by Los Angeles-based Security Pacific Corp. became final three months ago, said it agreed to sell its leasing operation to a unit of First City Trust Co. of Vancouver, Canada. The price was not disclosed. But the operation has assets of $160 million and in the first nine months of 1987 earned $2.2 million. Sale of Rainier Leasing Inc. is part of the Seattle-based bank’s disposal of operations that have become redundant because of the combination of Rainier and Security Pacific businesses.