ordeal when the Boeing 737 rapidly descended nearly 26,000 feet, forcing the deployment of oxygen masks. The flight, which took off on June 30 from Shanghai Pudong Airport and was operated under a codeshare agreement with Spring Japan, carried 191 people. The incident occurred around 6:53 PM local time when the plane suddenly faced a mid-air mechanical issue, dropping from approximately 36,000 feet to just under 10,500 feet within ten minutes.

As the aircraft rapidly lost altitude, passengers feared a crash and anxiously wore oxygen masks amid concerns that the sudden pressure change could cause loss of consciousness. Some passengers, caught off guard while sleeping, were shocked when the masks deployed, while others began writing their wills and sharing important personal information such as insurance details and PINs with loved ones. One passenger described hearing a muffled boom followed by a flight attendant urgently instructing everyone to put on their masks due to the malfunction.
The distressing moment was captured on video, showing panicked passengers clutching their oxygen masks as a flight attendant made an announcement. The incident left many passengers on the verge of tears as they processed the frightening experience mid-flight, highlighting the sudden severity of the emergency and the emotional impact on those onboard.
