Steve Barger is favored to become the next chairman of the investment committee of the Kentucky State District Council of Carpenters, Frankfort, following the February death of William B. Heron. The investment committee oversees the $177 million Pension Trust Fund and the $34 million Carpenters and Millwright Retirement Annuity Trust Fund. Mr. Barger, board secretary, was named temporary chairman and likely will assume the position permanently, said John Leinenbach, chairman of the board. The investment committee will recommend a new trustee to replace Mr. Barger, Mr. Leinenbach said. No time frame has been set for the new appointment.