SEOUL, June 9 (Reuters) - A new Boeing 737 MAX

landed back in China on Monday, flight tracking data showed, a

sign the U.S. planemaker was resuming deliveries to Chinese

customers as Beijing and Washington ease their tariff war.

Boeing ( BA ), which halted deliveries of new planes to China in

April as the world's two largest economies ramped up tariffs on

each other, said at the end of May deliveries would resume in

June after the tariffs were temporarily scaled back for 90 days.

The plane, painted in the livery of Xiamen Airlines, landed

at Boeing's ( BA ) Zhoushan completion centre near China's commercial

hub of Shanghai, after leaving Seattle on Saturday, and halting

to refuel in Hawaii and Guam as it crossed the Pacific.

Data from tracking app Flightradar24 shows Boeing ( BA ) had

originally ferried the craft to Zhoushan in March, before its

return to the United States in mid-April, when Chinese airlines

stopped taking new Boeing ( BA ) aircraft.

Boeing ( BA ), Xiamen Airlines and regulator the Civil Aviation

Authority of China (CAAC) did not immediately respond to

requests for comment.

China represents about 10% of Boeing's ( BA ) commercial backlog

and is an important and growing aviation market.

Representatives of China and the United States will meet in

London on Monday to discuss a trade deal.

At least three 737 MAX jets were repatriated by Boeing ( BA ) to

the United States in April from Zhoushan, where they were to

receive final touches before delivery to Chinese carriers. The

first to return was the same one that landed on Monday.

Boeing ( BA ) has previously said customers in China would not take

delivery of new planes due to tariffs, and it was looking to

resell potentially dozens of aircraft.

However the planemaker had not sent the planes elsewhere,

despite wanting to cut inventory.

Beijing has not commented on why Boeing ( BA ) deliveries stopped,

but said Chinese airlines and Boeing ( BA ) had been severely affected

by U.S.-imposed tariffs.

In April, Boeing ( BA ) said it had planned for 50 jets to go to

Chinese carriers during the rest of the year, with 41 in

production or pre-built.