Charleston County Aviation Authority canceled its board meeting Tuesday.

Airports Director Paul Campbell said the board wanted to further discuss some issues and acquaint new board members during a future meeting at possibly a retreat. He also said some of the 13 board members were unavailable to meet Tuesday.

The board was set Tuesday to discuss a recommendation from Campbell that the agency increase staffing by 11 percent, adding 17 new employees and one upgrade to the 154 full-time workers and six part-timers at the state's busiest airport. The authority also runs two smaller airports - in Mount Pleasant and on Johns Island.

Campbell said the staffing recommendation will be made during the next board meeting. No date has been set.

The new staff members are needed, he said, to handle the increasing passenger demands on the nearly 30-year-old terminal at Charleston International Airport, which is adding five new gates to its current 10, a third baggage carousel, consolidated security checkpoints and numerous other changes in a $189 million expansion and renovation. Concessionaires are tacking on another $10 million in improvements to their spaces.

Charleston International saw 2.9 million passengers last year. That number is expected to swell to 4 million over the next decade or so.

Reach Warren L. Wise at 937-5524 or twitter.com/warrenlancewise.