A parked, empty 787 at Boston airport has become the second Dreamliner to suffer a cabin fire. Smoke in the cockpit of a Japan Airlines 787 was discovered by a mechanic yesterday (January 7) morning, reportedly due to a battery explosion. The news is particularly bad for Boeing given that its new aircraft type had previously suffered a cabin fire during a test flight. That fire prompted a redesign of the 787’s electrical system. However, in December electrical issues affected several 787s operated by Qatar Airways and United, causing the grounding of some aircraft.