Qatar Airways Boeing 777-2DZLR A7-BBI, which has been under maintenance at Doha since 16th June, returned to service this morning operating QR416 Doha – Beirut. However the aircraft stopped the climb at 22,000 ft due to a technical issue, entered a hold to work checklists then returned to Doha for a safe landing. The aircraft was able to depart again after just under two hours on the ground.