Boeing opens new tab is resuming widebody jet deliveries to China which were halted in recent weeks due to a Chinese regulatory review, according to a source familiar with the matter.

Orders of widebody 777 and 787 planes are expected to be delivered in the coming days, the source said. Deliveries of Boeing's 737 MAX are set to resume as early as next month, the source said.

The development is a boost to Boeing, which had flagged the delay to investors after Reuters first reported in May that the company's plane deliveries to China had been temporarily halted. The halt was due to a review by the Civil Aviation Administration of China (CAAC) of batteries contained in the 25-hour cockpit voice recorder.