The Senate majority leader, Frederick E. Berry, upset with the Massachusetts Port Authority's termination of Logan Airport bus service in Peabody, has filed legislation to ensure that Essex County is represented on the agency's board.

The measure filed by the Peabody Democrat and cosponsored by 14 other local legislators would add two seats to the existing seven-member board and require that one member be a resident of Essex County.

The bill is the latest response by area legislators to Massport's decision to discontinue Logan Express service from Peabody as of April 30 due to low ridership and revenue.

Berry earlier filed legislation seeking to establish a special commission to review the impact of terminating the bus service. That bill would bar Massport from selling the Route 1 Logan Express site until at least 60 days after the Senate receives a report from the commission.

Both bills have been accepted into the Senate as late files and were awaiting similar action in the House this week.

''I think basically my North Shore constituents are taking it on the chin," said Berry, whose 2d Essex District includes Beverly, Danvers, Peabody, Salem, and Topsfield. ''We don't get a lot out of Massport, yet we give a lot to Massport," including the Tobin Bridge that North Shore commuters pay.

''We're a cash cow for Massport, and they ought to show us a little more respect," Berry said. ''The mere fact that they can make this decision to close the Logan Express without a thought of the North Shore citizenry shows that we need to have somebody on the board to say, 'Hey, what about the north of Boston area? I think the oversight, the not thinking about the consequences, is intolerable.'"

Since the Peabody service began during the week of Sept. 11, 2001, Massport has lost $5 million on the run, officials said. They estimated that the Peabody bus has one-third to one-fifth fewer passengers than the other Logan Express routes, which run from Braintree, Framingham, and Woburn.

Massport is an independent public authority that operates Logan International Airport, the Tobin Memorial Bridge, the port of Boston, and other facilities. A spokesman from the authority could not be reached to comment on the new bill.

Berry said he and other legislators have been talking with the authority about ways to provide area residents with some form of transportation to the airport after April 30.

''I can say they are being cooperative," he said. ''They are trying to find a solution that will at least give an option to my constituents to get back and forth from the airport. I feel that we will achieve that goal."

But Berry said that even if that occurs, he believes it makes sense to press for Essex County representation on the Massport board.

''I think we ought to have someone on the board to make sure this arrogant oversight they exhibited doesn't happen again," said Berry, who said he might be satisfied with a pledge by Massport to ensure Essex County representation on the board.

According to Berry, none of the current members of the board live in Essex County. The Massport website lists one of the board members as residing in Chelsea and one in Boston, but does not list the hometowns of the other five members.

Democratic state Representatives Theodore C. Speliotis of Danvers and Joyce A. Spiliotis of Peabody will be leading the effort in the House to gain passage of the bill.

Speliotis said the legislation is important as ''part of an entire effort to restore the bus line," but more broadly to make clear that ''the North Shore must be taken a little more seriously by Massport."

While North Shore commuters pay a toll to cross the Tobin Bridge, ''93 doesn't have tolls. Route 3 doesn't have tolls," Speliotis said. ''They need to recognize that every time they are looking to raise costs and reduce services, it ought not to be on the North Shore. We shouldn't continue to bear the disproportionate burden. That's what this legislation is really trying to say."

Spiliotis also said, ''We need a voice on the board."

''We're paying $3 for the tolls. We're basically paying for the Big Dig on the North Shore. Now they're eliminating the Logan Express, which is going to hurt our constituents -- financially, too. I have a lot of elderly people that take the Logan Express. It's a lot different paying $11 versus paying $50 to take a cab, and that does not include the tip. . . . I've received many phone calls. It's going to be a hardship for a lot of people."