LONDON – Yesterday, a Finnair Airbus A350 that departed from Helsinki, bound for Bangkok, returned back to the airport amid reports of smoke in the cabin.

As seen on data provided to us by RadarBox.com, the aircraft did a quick circle around the area before arriving back in Helsinki on Runway 22L.
Above is footage of inside the cabin is very smoky, which also tells us exactly why the aircraft immediately returned back to Helsinki.
The aircraft used on flight AY141 was OH-LWH, a 4.8-year-old Airbus A350-900, which is quite a young aircraft.
OH-LWH was delivered new to Finnair back in April 2017.
This is a developing story.
According to the ”Finnish NTSB”, Onnettomuustutkintakeskus (OTKES) confirmed today that the reason for the steam in the cabin was de-ice fluid that entered the APU and onwards to the plane’s air conditioning system as steam. No real danger present, but as Finnair’s top priority is safety the crew decided to make a precautionary emergency landing.