Passengers on Korean Airlines Flight KE189 arrived safely in Taichung, Taiwan, on June 23 after it was diverted the day before due to a fault, which led to 13 people being taken to the hospital, according to media reports.
The flight had departed from Incheon International Airport with 125 passengers at around 4.45pm local time on June 22.
About 50 minutes after departure, there was a warning about a fault in the pressurisation system of the Boeing 737 Max 8 aircraft, Korea JoongAng Daily reported.
An aircraft pressurisation system regulates the pressure level inside the aircraft.
Flight tracking website Flightradar24's data shows the plane dropped about 26,900ft in about 15 minutes.
@garygaryocp Korean Airlines KE-189 flying from Seoul to Taiwan... 13 passengers were sent to the hospital due to the incident... Passenger thought that it will be her last day on Earth...
♬ original sound - Gary
The flight circled back to Incheon International Airport at around 7.40pm, about three hours after it had taken off.
According to Korea JoongAng Daily, citing the Ministry of Land, Infrastructure and Transportation, 15 passengers said they suffered from hyperventilation or pain in their eardrums, while 13 were taken to hospital after landing.
No major injuries were reported, it added.
The flight resumed on the morning of June 23 with a different aircraft, about 19 hours after the initial departure schedule, the daily reported, citing Korean Air.
The Korean Air spokesperson was reported as saying that the airline is currently investigating the exact cause of the diversion, and plans to put the aircraft under maintenance after an inspection.
Some passengers, who arrived at 12.24pm local time at Taichung International Airport, said they were frightened and that they would not take a flight for a while, Taipei Times reported.
A passenger, known only as Tseng, said children on board were crying when oxygen masks were released, and he was afraid that the plane might hit the ground.
Another passenger, who was identified only as Hsu, said she felt something was amiss as the aircraft seemed to be hovering in the air and the flight attendants remained in their seats.
She said she and her daughters put on oxygen masks when the plane began to fall, and she had an earache and headache while her daughters were crying.
This article was first published in The Straits Times. Permission required for reproduction.