I wonder if any of these issues could have something to do with the aircraft being in long term storage before delivery? Weren't the first 30 or so frames completed and stored in Seattle pending certification? Could such storage perhaps have had some adverse effects on the failing components?
EDIT:
Just saw this:
Press Release – FAA Will Review Boeing 787 Design and Production
Press Release – FAA Will Review Boeing 787 Design and Production
WASHINGTON – In light of a series of recent events, the FAA will conduct a comprehensive review of the Boeing 787 critical systems, including the design, manufacture and assembly. The purpose of the review is to validate the work conducted during the certification process and further ensure that the aircraft meets the FAA’s high level of safety.
“The safety of the traveling public is our top priority,” said U.S. Transportation Secretary Ray LaHood. “This review will help us look at the root causes and do everything we can to safeguard against similar events in the future.”
A team of FAA and Boeing engineers and inspectors will conduct this joint review, with an emphasis on the aircraft’s electrical power and distribution system. The review will also examine how the electrical and mechanical systems interact with each other.
“We are confident that the aircraft is safe. But we need to have a complete understanding of what is happening," said FAA Administrator Michael P. Huerta. "We are conducting the review to further ensure that the aircraft meets our high safety standards.”
The review will be structured to provide a broader view of design, manufacturing and assembly and will not focus exclusively on individual events. The review is expected to begin in Seattle, but may expand to other locations over the course of several months.
FAA technical experts logged 200,000 hours of work during the 787 type certification and flew on numerous test flights. The FAA reviews 787 in-service events as part of our continued operational safety process.
United Airlines is currently the only U.S. airline operating the 787, with six airplanes in service. The worldwide in-service fleet includes 50 aircraft.