On 13 May 2008, Airbus announced reduced deliveries for the years 2008 (12) and 2009 (21). After further manufacturing setbacks, Airbus announced its plan to deliver 14 A380s in 2009, down from the previously revised target of 18. A total of 10 A380s were delivered in 2009. In 2010 Airbus delivered 18 of the expected 20 A380s, due to Rolls-Royce engine availability problems. Airbus planned to deliver "between 20 and 25" A380s in 2011 before ramping up to three a month in 2012. In fact, Airbus delivered 26 units, thus outdoing its predicted output for the first time. , production was 3 aircraft per month. Among the production problems are challenging interiors, interiors being installed sequentially rather than concurrently as in smaller planes, and union/government objections to streamlining.