China Airlines B738 near Okinawa on Jun 26th 2014, suspected fuel leak

A China Airlines Boeing 737-800, registration B-18605 performing flight CI-167 from Osaka Kansai (Japan) to Kaohsiung (Taiwan) with 154 people, was enroute at FL380 about 130nm north of Okinawa (Japan) when the crew detected fuel quantities decreased more rapid than anticipated and decided to divert to Okinawa's Naha Airport for a safe landing about 30 minutes later.

The remainder of the flight was cancelled, the passengers were rebooked onto flight CI-123 from Okinawa to Taipei and CI-309 to Kaohsiung and reached their destination with a delay of 10 hours.

The airline said the cause of the decreasing fuel quantity indication is under investigation.