On March 25, 2019, the NRC issued a Notice of Violation and Proposed Imposition of Civil Penalty (CP) in the amount of $116,000 to Southern California Edison Company for two violations of NRC requirements related to an August 3, 2018 fuel-loading incident at San Onofre Nuclear Generating Station. The first violation was Severity Level (SL) II violation involving the failure to ensure important to safety equipment was available to provide redundant drop protection features for a spent fuel canister during downloading operations. Specifically, the licensee inadvertently disabled the redundant important to safety downloading slings while lowering canister 29 into the storage vault. During the approximately 45 minute time frame, the canister rested on a shield ring unsupported by the redundant downloading slings at approximately 18 feet above the fully seated position. This failure to maintain redundant drop protection placed canister 29 in an unanalyzed condition because the postulated drop of a loaded spent fuel canister is not analyzed in the final safety analysis report. In addition, a SL III violation involving the failure to make a timely notification to the NRC Headquarters Operations Center for the August 3, 2018, disabling of important to safety equipment. Specifically, the licensee failed to notify the NRC after an event that occurred on August 3, 2018, in which the licensee inadvertently disabled the redundant important to safety downloading slings while lowering spent fuel canister 29 into the storage vault, which resulted in the canister resting on a shield ring unsupported by the redundant downloading slings at approximately 18 feet above the fully seated position for approximately 45 minutes.