Summary
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 airplanes. This proposed AD was prompted by a report indicating that the fire block in the video control station and closets, and fire blocking tape in the floor panel opening in the forward and aft main passenger cabin, might be missing on some airplanes. This proposed AD would require installing fire block in the video control station and closets, as applicable, and installing fire blocking tape in the floor panel openings in the forward and aft main passenger cabin. We are proposing this AD to prevent propagation of a fire in the lower lobe cheek area outboard of a video control station and closet. Such propagation could result in an increased risk of smoke and/or fire propagation into the passenger cabin.