An ANA All Nippon Airways Airbus A321-200N, registration JA145A, performing flight NH-299 from Tokyo Haneda to Tottori, was on approach to Tottori when the crew aborted the descent at 6,000 feet and entered a hold due to a technical problem. The crew subsequently decided to divert to Osaka Kansai, where the aircraft landed safely on runway 06 about one hour after stopping the descent at Tottori.
Emergency services found an engine (PW1130G) oil leak, and the runway needed to be cleaned. The aircraft was still on the ground in Osaka about five hours after landing, according to the report, which gives no further detail on the cause of the leak or the next steps for the aircraft.