FirstEnergy may have its final report ready today for federal regulators showing how boric acid damaged a key safety component in its Davis-Besse nuclear power plant.

In addition, the Akron utility may submit its final repair plans to the Nuclear Regulatory Commission at the end of next week, FirstEnergy spokesman Todd Schneider said yesterday. Either report could be pushed back to other dates, he said.

FirstEnergy has given the NRC a preliminary report showing how it believes boric acid leaked on the reactor vessel head and created two cavities on top of the steel structure. It also met with the NRC last week when it presented its initial repair plans. The company estimates repairs will cost at least $16 million and take as long as four weeks to complete.