Home > NRC Library > Document Collections > General Communications > Information Notices > 1987 > IN 87-11
SSINS No.: 6835 IN 87-11 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C. 20555 February 13, 1987 Information Notice No. 87-11: ENCLOSURE OF VITAL EQUIPMENT WITHIN DESIGNATED VITAL AREAS Addressees: All nuclear power reactor facilities holding an operating license or construction permit. Purpose: This notice is provided to describe examples of significant degradation of facility security programs resulting from the failure to enclose vital equipment within designated vital areas. It is expected that recipients will review the information for applicability to their facilities and consider actions as appropriate to ensure that similar degradations do not exist or occur at their facilities. However, suggestions contained in this information notice do not constitute NRC requirements; therefore, no specific action or written response is required. Past Related Correspondence: Information Notice No. 85-79, "Inadequate Communications between Maintenance, Operations, and Security Personnel." Information Notice No. 86-27, "Access Control at Nuclear Facilities." Description of Circumstances: Failure to provide adequate physical protection for vital equipment is one of the most significant safeguards vulnerabilities that can occur at a nuclear power facility. In recent months, plant walkdowns and inspections by NRC and licensee personnel have identified instances in which vital equipment was incompletely enclosed in a vital area designated in the physical security plan, resulting in inadequate protection. The following examples were discovered. 1. High-pressure coolant injection (HPCI) pump rooms and 480-V shutdown transformers were not enclosed within designated vital areas with positive access controls established. 2. 125-V dc power panels and steam supply piping designated as vital equipment was not enclosed within designated vital areas. 8702110131 . IN 87-11 February 13, 1987 Page 2 of 3 3. The vital area barrier surrounding the diesel generator room had openings in it that would have allowed someone to reach in and manipulate valves on vital equipment. In the first two examples, positive access controls or compensatory measures had not been established to restrict access to the vital equipment. Discussion: Failure to protect vital equipment by not ensuring that the equipment is located within an appropriately established and controlled vital area poses a potentially significant threat to the security and safety of the facility because of the opportunity for unauthorized and undetected access. A review of the circumstances of the examples noted above indicate that the most significant factors contributing to the degradations in protection of vital equipment were: - Failure by the licensee to adequately review and verify the as-built drawings relative to the location and identity of designated vital equipment. - Failure of the site security organization to verify the location and protection afforded areas and equipment identified as vital in the physical security plan. - Inadequate training of security and other licensee personnel in the necessity for appropriate protection for designated vital areas and equipment. - Failure to adequately coordinate and followup on maintenance and modification activities that may result in exposing vital equipment to an inadequately protected environment. . IN 87-11 February 13, 1987 Page 3 of 3 No specific action or written response is required by this information notice. If you have any questions regarding this matter, please contact the Regional Administrator of the appropriate NRC regional office or the technical contact listed below. Edward L. Jordan, Director Division of Emergency Preparedness and Engineering Response Office of Inspection and Enforcement Technical Contact: R. P. Rosano, IE (301) 492-4006 Attachments: 1. Information Notice No. 85-79 2. Information Notice No. 86-27 3. List of Recently Issued IE Information Notices .
Page Last Reviewed/Updated Thursday, March 29, 2012