New York, May 7 -- US air safety authorities are investigating whether Boeing completed required plane inspections on the 787 and whether employees falsified aircraft records, officials said.

The issue centers on whether Boeing undertook required inspections to "confirm adequate bonding and grounding where the wings join the fuselage on certain 787 Dreamliner airplanes," the Federal Aviation Administration said in an email.

The FAA said it opened the investigation after Boeing notified it that the company may not have completed required inspections, which are needed to ensure a safe and functional electrical flow between aircraft components.

"The FAA is investigating whether Boeing completed the inspections and whether company employee...