Massachusetts Turnpike Authority Employees Retirement System, Boston, issued an RFP for an international equity manager to run $19 million. Proposals are due Oct. 29. The $175 million system has a target international equity allocation of 11%, said Joseph Miletich, consultant at New England Pension Consultants, which is assisting. Mr. Miletich declined to provide further details. Thomas Arcadipane, secretary of the retirement board, did not return calls by press time seeking further information.