On December 18, 2013, the NRC issued a Severity Level III Notice of Violation to Aerotest Operations, Inc. involving the failure to implement Technical Specification 10.2. Specifically, for an indeterminate period of time beginning at a point after the last full fuel inspection in 2006 until October 15, 2010, when the facility ceased reactor operation, the licensee operated the reactor with significant defects in the fuel elements. During fuel inspections conducted following reactor shutdown, twenty two fuel elements were identified as having varying degrees of cracking in the aluminum cladding, representing a significant defect in the fuel elements and loss of the integrity of a fission product barrier.