The team identified a non-cited violation of Crystal River Unit 3 Operating License Condition 2.C.(9), for the licensees failure to properly implement
fire protection program procedures for control of
transient combustible materials. Specifically,
transient combustible materials were left unattended for four days in the 3B 480V
ES Switchgear Room after work had been completed, which was a violation of the licensees administrative procedures for control of
transient combustibles. Once identified, the licensee removed the combustible materials and initiated a nuclear condition report to address the issue. The finding is more than minor because the
transient combustible materials presented a credible fire scenario involving equipment important to safety, which degraded the reactor safety
Initiating Events cornerstone objective to limit the likelihood of those events that may upset plant stability and challenge critical safety functions. The amount of unattended
transient combustible materials did not violate the licensees
transient combustible control limits for the fire area. Therefore, the finding was assigned a low degradation rating against the combustible controls program. The finding was of very low safety significance (Green) based on the low degradation rating. This finding has a cross-cutting aspect in the Work Practices component of the Human Performance area because the licensee failed to effectively communicate expectations regarding procedural compliance and personnel following procedures (NRC
Inspection Manual Chapter 0305,
H.4(b))
