The Boeing Dreamliner safety checks were ordered after two non-US carriers experienced fuel leaks.
Japan's All Nippon Airways said it had reported a fuel leak to the FAA and Boeing on Sunday.
ANA spokesman Yoichi Uchida said the carrier found the fuel leak on October 23.
He said the airline completed inspections of all 16 ANA Dreamliners on Sunday, and that the work did not interrupt scheduling.
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The mother of one of the Manchester attack victims has told of the distressing moment she found her daughter being treated after the attack.
Marjorie and Michael Cawdery, both 83, are understood to have been stabbed to death in a killing their family called "incomprehensible".
Detectives have launched a murder investigation following the shooting in Brent, north west London on Friday night.