Qatar-based Rizon Jet has been granted approval by the Bermuda Department of Civil Aviation for its Doha facility to maintain and repair Bermuda-registered aircraft under an AMO certificate. The MRO has also added the Learjet 45 and Challenger 300 to its Biggin Hill, UK, line and base maintenance list of aircraft capabilities. Both locations are EASA Part 145 compliant and hold approvals from a number of different states. The centers offer AOG support on Bombardier and Hawker aircraft.