Qatar

Aircraft was on a predelivery flight before expected entry into Qatar Airways Cargo fleet.

The former Qatari 747-8i has begun the final step before joining the presidential airlift fleet.

White House officials posted farewells to tail number 29000 after what they described as a final flight.

Air Force says refurbished aircraft could enter service later this year as interim presidential transport.

U.S. Air Force says latest schedule slip puts program four years behind plan.

Retrofitting process will transform the former private-use Qatar 747 for “executive airlift support.”

Experts say February goal would require waiving key security and safety requirements.