Time Capsule Problems

"Apple's Time Capsule network drives are still suffering from power failures, complaints on official support forums indicate. The failures are allegedly occurring without warning, and are thought to be attributable to faulty power supplies, though some owners have suggested problems with chips or connectors."

This is mainly happening on older Time Capsules sold in 2008, and the repair cost has been in the $500.00 USD range. This is where having a backup for your backup comes in handy. No comment so far from Apple.