JAL B772 over Pacific on Jul 9th 2013, hydraulic leak

A JAL Japan Airlines Boeing 777-200, registration JA711J performing flight JL-2 from Tokyo Haneda (Japan) to San Francisco,CA (USA) with 236 passengers, was enroute at FL350 over the Pacific Ocean about 800nm northeast of Tokyo when the crew decided to turn around and return to Tokyo Haneda due to a hydraulic leak affecting the flaps. The crew extended the flaps with the alternative mechanism and landed safely on Haneda's runway 23 about 4 hours after departure.

A replacement Boeing 777-200 registration JA708J reached San Francisco with a delay of 8 hours.