Overview
- A Boeing 737-800 operating as ANA Flight 1502 returned to Naha and was evacuated by slide after a right-engine oil overtemperature indicator activated about 20 minutes after takeoff on Sep. 23.
- Crew shut down the right engine and landed shortly after 22:00, and passengers disembarked on a taxiway using emergency slides with no fire or smoke observed.
- Three of 152 people on board, including infants among the passengers, suffered minor injuries such as scrapes; airline and local reports say there were no serious casualties.
- The Ministry of Land, Infrastructure, Transport and Tourism has labeled the event a 'serious incident' and the Transport Safety Board dispatched investigators who interviewed the crew and began on-site inspection of the right engine and flight-record data.
- Passengers reported strong vibration and a burning smell during the flight, and investigators will now seek to link cockpit indicators, recorder data and the physical engine condition to determine whether the cause is technical, maintenance-related or procedural.