The Board of County Supervisors went ahead yesterday with a controversial reappointment to the Prince William Park Authority Board, selecting Pete Ebert over the objections of Chairman-elect Sean Connaughton.

But supervisors decided to revisit the length and timing of terms on the county's numerous appointed boards, so in the future an incoming supervisor might have more control over appointments made before he or she takes office.

Outgoing Chairman Kathleen K. Seefeldt (D) indicated her intention last week to reappoint Ebert--a Manassas developer, political supporter and son of Commonwealth's Attorney Paul B. Ebert (D)--to a second term in the at-large seat on the eight-member Park Authority Board.

Connaughton (R), who will take office in January, opposed the move, saying he had chosen his own candidate for the job, Steve Danzinger, an executive with Dominion Semiconductor.

Pete Ebert's term and that of three other Park Authority Board members appointed by other supervisors officially expired in October. The appointments were left until this week.

Several residents spoke publicly yesterday against Ebert's reappointment, saying Connaughton should be able to choose whom he wants on the board of the powerful Park Authority, which develops and runs the county's parks, golf courses, fitness centers, ballfields and other recreation programs.

Supervisors, however, unanimously approved the appointments.

Supervisor Mary K. Hill (R-Coles) suggested that the county's rules on appointments be amended for Ebert to possibly serve a smaller term and then be reconsidered by Connaughton. Supervisors also suggested they consider requiring appointees to resign when their sponsoring supervisor leaves office.