Challenge Group has announced a landmark ACMI (Aircraft, Crew, Maintenance, and Insurance) partnership with U.S. cargo carrier Kalitta Air for the operation of a newly converted Boeing 777-300ERSF — the first aircraft of its kind to enter international service.
Delivered to Kalitta Air by aircraft lessor AerCap in September, the Boeing 777-300ERSF, registered N771CK, marks a significant milestone for the air cargo industry as the first freighter converted under Israel Aerospace Industries’ (IAI) passenger-to-freighter program, certified in late August.
A Strategic Partnership to Pioneer the “Big Twin” Freighter
Under the new ACMI agreement, the aircraft will operate on a Tel Aviv–Dubai–Hong Kong–Tel Aviv rotation, introducing the Boeing 777-300ERSF to global cargo operations for the first time.
This collaboration enables Challenge Group to evaluate the aircraft’s real-world performance, assess operational parameters, and gather key insights before the arrival of its own aircraft of the same type later this year.
In January 2025, Challenge Group signed a deal with AerCap to lease two Boeing 777-300ERSFs, which will be progressively integrated into its fleet. The Group’s first unit, to be operated by Challenge Airlines MT under its Maltese AOC, will also be the first 777-300ERSF registered in the EASA region.
Driving Innovation and Fleet Modernization
Or Zak, Chief Commercial Officer at Challenge Group, said:
“This partnership with Kalitta Air represents a significant step forward in our long-term strategy to integrate the Boeing 777-300ERSF into our operations.
It allows us to gain practical experience with this advanced aircraft type and ensure our teams are fully prepared to operate it at the highest standards.
The 777-300ERSF will play a vital role in enhancing our efficiency, flexibility, and sustainability as we continue to grow our global network.”
Heath Nicholl, Chief Operating Officer and Executive Vice President at Kalitta Air, commented:
“We are pleased to partner with Challenge Group on the introduction of the first-of-its-kind Boeing 777-300ERSF into international service.
This collaboration underscores our shared commitment to innovation and excellence in the air cargo industry.”
About the Boeing 777-300ERSF – “The Big Twin”
Nicknamed “The Big Twin”, the Boeing 777-300ERSF is a next-generation long-haul freighter jointly developed by AerCap and IAI. With a payload capacity of around 100 tonnes and enhanced fuel efficiency, the aircraft offers a compelling solution for operators seeking to replace older four-engine models with more sustainable, cost-effective alternatives.
The type is expected to become a major player in the widebody cargo segment, combining extended range with lower operating costs and reduced carbon emissions.
About Challenge Group
Challenge Group is a global air cargo operator providing integrated logistics solutions through its network of airlines, handling companies, and specialized facilities. Operating a fleet of Boeing 747 freighters and expanding with new-generation aircraft, Challenge Group connects key global trade routes and is committed to innovation, efficiency, and sustainability.
For more information, visit www.challenge-group.com.