7E7 may have self-monitoring maintenance technology, Issue 35 Jun/Jul 2004

Boeing is using every available technology to help the 7E7 deliver the
biggest possible improvements in cash operating costs. One
innovation is the use of sensors in the aircraft’s structure used to
detect damage. Coupled with health monitoring systems, they will be
used to recommend the schedule and workscope of airframe
maintenance. This will replace traditional structural inspections.