ANA B763 near Akita on Feb 20th 2014, smoke in cabin

An ANA All Nippon Airways Boeing 767-300, registration JA8569 performing flight NH-874 from Akita to Tokyo Haneda (Japan) with 155 passengers and 8 crew, was climbing out of Akita about 5 minutes into the flight when a burning smell and white smoke appeared in the cabin. A short time later the fire detectors in the lavatories raised alert prompting the crew to stop the climb and return to Akita for a safe landing. Emergency services checked the right hand engine (CF6) after landing.

Japan's Ministry of Transport reported that there was no fire. A minor oil leak from the right hand engine was identified as source of the smell and smoke, the oil vaporized, got into the air conditioning system and thus was transported into the cabin.