787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Fuel -
System Description
Copyright © The Boeing Company. See title page for details.
12.20.8 D615Z003-TBC
Nitrogen Generation System
The Nitrogen Generation System (NGS) provides automatic full time
flammability protection for the fuel system. It generates nitrogen enriched air to
displace fuel vapors in all fuel tanks. The nitrogen enriched air minimizes fuel
flammability during normal flight and ground operations.
October 31, 2007