By Jacob Adelman, The Philadelphia Inquirer PREIT, owner of malls that include Capital City in Cumberland County and Philadelphia's Fashion District, filed for Chapter 11 bankruptcy Sunday in what it describes as a prepackaged restructuring plan aimed at unlocking $150 million in new borrowing. PREIT, whose initials stand for Pennsylvania Real Estate Investment Trust, said in a news release that it will continue operations without interruption while it obtains necessary approvals for the plan. The Chapter 11 petition comes about two weeks after the company first outlined the restructuring plan, saying it aimed to avoid a bankruptcy filing by persuading all of its lenders to back the proposal. It ultimately received support from 95% of its creditors, it said in the release.