4 May, 2012: Sierra-modified Hawker 400XPR makes first flight
20 April, 2012: Sierra Industries receives Mexican government DGAC approval for aircraft inspections, service and modifications
1 December, 2011: Sierra FJ44 fleet approaches 60 re-engined Citations
4 November, 2011: Sierra Industries completes 4th hangar addition at Garner Field Airport, Uvalde