On the afternoon of the 17th, an All Nippon Airways passenger plane heading from Miyako Airport in Okinawa Prefecture to Haneda Airport made an emergency descent due to a warning sign indicating trouble with the pressurization system that maintains the air pressure inside the aircraft.
Oxygen masks were issued, but none of the passengers complained of feeling unwell.
According to All Nippon Airways, around 6:00 pm on the 17th, All Nippon Airways Flight 88 Boeing 787, which was heading from Miyako Airport in Okinawa Prefecture to Haneda Airport, was flying at an altitude of about 12,000 meters off Cape Muroto in Kochi Prefecture. It means that there is a warning display that a problem has occurred.
The pressurization system is to keep the air pressure in the cabin constant even in the low air pressure, so the pilot made an emergency descent of the passenger plane and took out the oxygen mask in the cabin to respond.
After that, after descending to an altitude of about 2700 meters and resetting the system, the warning display disappeared, so the emergency declaration was withdrawn and the destination was changed to Osaka Airport and landed.
There were 248 people on board, including 239 passengers and 9 crew members, but no one complained of feeling unwell.
All Nippon Airways is investigating the cause of the trouble.
Passenger 'not feeling alive'
It is a photograph taken by a passenger who was on a passenger plane that suddenly descended.
A man sitting in the seat is wearing a yellow oxygen mask with a tube.
Yasushi Negishi, who posted the photo on social media, told NHK, "Oxygen masks came down with the announcement of the emergency descent. When the aircraft was in a rapid descent, I didn't feel alive. At the time of landing. Although the plane shook somewhat, there was applause in the cabin as soon as it landed.There was no panic in the cabin, and the cabin attendants' voices and the captain's announcements were extremely calm."