West Penn Allegheny Health System has 30 days to post its required audited financial report for the 2012 fiscal year to avoid default on its $726 million Series 2007 bond offering.

"As of the time of this filing, audited financial statements of the system are not available, but the system intends to continue to work with its independent auditors to finalize the same," Pittsburgh-based West Penn said in a statement on Friday.

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