At 11:10 PM PST on December 6 a small number of underlying hosts experienced power loss, affecting some customers in sae1-az3 in the SA-EAST-1 Region. Impacted customers were automatically notified via the Personal Health Dashboard. We quickly identified root cause and began working toward recovery. At 2:25 AM PST on December 7 additional hosts were impacted. Shortly after that we began to successfully mitigate impact and as of 4:00 AM PST we have begun to see recovery. We continue to work toward full resolution.