Feb 8, 2013
At a press conference held yesterday NTSB chairman Deborah Hersman said the cause of the short circuit was yet to be found, but they were looking at several possibilities. NTSB will release an interim report within 30 days. That means the fleet most likely will remain grounded at least another month.
Boeing is working on several possible fixes to the issue, including designs that will better protect the electrical bays and aircraft from any potential fire damage. In a statement released after the NTSB press conference, Boeing said it welcomes the progress being made in the investigation. The company also said it worked within FAA guidelines during certification.