At the end of March, more than a dozen planes operated by China Eastern refused to land and returned to their departure points in Yunnan. China Eastern formally apologized to the public and offered up an explanation on Sunday. But travellers are rejecting its explanation.

On March 31st, 14 China Eastern Airlines planes refused to land and returned to their departure points in southwestern Yunnan Province. On April 3rd, the airline announced that severe winds had forced the planes to return. But people have questioned that explanation.

A passenger said, "China Eastern says the delay was caused by bad weather. But why weren't other airlines' flights affected? They didn't respect us."

"It's impossible that all these airplanes hit such bad weather at the same time." said a passenger.

So what was the weather like? Was it really that bad that day?

Yang Guiming, senior weatherman from Central Meteorological, said, "From the wind and cloud information gathered for March 31st, we don't see any bad weather that could have threatened aircraft flying in Yunnan."

Based on the airline's own rules, in special situations, the pilot has the right to manage the plane as he sees fit. And he has the right to order the plane to return to its departure airport to ensure the safety and security of its passengers.

A passenger said, "It's really hard for an ordinary passenger to understand that all of the planes had to return to their departure airports. There needs to be a reasonable explanation."

A passenger said, "I think the pilots lacked professional ethics."

A passenger said, "It's unforgivable to take so many passengers' security as a joke."

China Eastern Airlines sent an investigation team to Yunnan on Sunday. The Civil Aviation Administration of China has also sent two observers to participate in the investigation.