I can speak to the readiness issue. Our standby posture is maintained 24 hours a day, seven days a week. That does not necessarily mean they're the only aircraft on base. In fact, normally there are backups for those aircraft. The statistics may be misleading, in that the situation doesn't impact on our readiness posture or our level of service delivery. But as in all fleets, maintenance issues pop up from time to time.
On June 15th, 2009. See this statement in context.