Mammoth Freighters (Mammoth) will expand its Boeing 777 passenger-to-freighter conversion programme to China after selecting STAECO as its newest conversion MRO partner.
The company plans to open its first conversion line at STAECO’s new Qingdao facility in September 2026, responding to growing demand for wide-body freighter capacity in China and the wider Asia-Pacific region. The site will complement Mammoth’s existing conversion lines at Aspire MRO in Fort Worth, Texas, and STS Aviation Services in Manchester, UK.
Mammoth will occupy a two-bay wide-body hangar at Qingdao’s newly rebuilt airport, with the first aircraft – a Boeing 777-200LR owned by Jetran – scheduled to enter conversion later this year. A second conversion line is expected to become operational in early 2027.
The expansion follows the US Federal Aviation Administration’s certification of Mammoth’s 777-200LR Mammoth Freighter (777-200LRMF) in April, clearing the aircraft for commercial service. The first two converted aircraft are due to enter service this autumn with Qatar Airways and DHL.
Mammoth converts Boeing 777-200LR and 777-300ER passenger aircraft into dedicated freighters. Following FAA certification of the 777-300ERMF, the company plans to begin supplemental type certificate (STC) validation with the Civil Aviation Administration of China (CAAC). Mammoth expects the validation process to be completed before the first 777-300ERMF enters service in China.
