Ethiopian Airlines (ET, Addis Ababa International) has become the first airline to resume Dreamliner operations when it deployed one of its four B787-8s ET-AOP (MSN 34744) onto its Addis Ababa International to Nairobi Jomo Kenyatta route on Saturday, April 27. The move comes after the US Federal Aviation Administration recently approved fixes for the 787's problematic battery, which had seen the global fleet grounded since mid-January. An Air India (AI, Delhi International) source told Reuters in New Delhi that its commercial 787 operations "should start within a week or so, immediately after approval from the local regulator DGCA." In the past week, Boeing (BOE, Washington National) has been busy deploying teams of technicians to all ten operators of the 787 to implement the fixes. Overall, it is estimated that the grounding has cost Boeing USD600million with added knock-on effects in the form of halted Dreamliner deliveries.