AT&T, Workers Face Questions Over Class Bid in Pension Data Suit

A federal judge hearing a dispute over AT&T Inc.'s pension plan calculations expressed doubt about certifying the case as a class action covering thousands of people.

Judge James Donato on Tuesday ordered the parties to submit more information about how benefits are calculated under AT&T’s pension plan and whether a decision requiring changes to the plan could hurt or unfairly benefit certain workers.

He gave the parties a month to file briefs answering four questions, including whether all the proposed class members have standing to sue and whether the court might “impermissibly enlarge” certain workers’ rights if it orders that ...