Closeout of IE Compliance Bulletin 86-03: Potential failure of multiple ECCS (Emergency Core Cooling System) pumps due to single failure of air-operated valve in minimum flow recirculation line

Technical Report · Mon Oct 01 04:00:00 EDT 1990

OSTI ID:6528253

Foley, W J; Dean, R S; Hennick, A ^[1]

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1. Parameter, Inc., Elm Grove, WI (USA)

Documentation is provided in this report for the closeout of IE Compliance Bulletin 86-03 regarding the potential failure of multiple Emergency Core Cooling System (ECCS) pumps due to a single failure of an air-operated valve in a minimum flow recirculation line. Closeout is based on the implementation and verification of four actions required by the bulletin. Evaluation of utility responses and NRC/Region inspection reports in accordance with specific criteria indicates that the bulletin is closed for 116 (98%) of the 118 nuclear power facilities in operation or under construction to which it was issued for action. Facilities which were shut down indefinitely or permanently or which had construction halted indefinitely were not included in this review. A follow-up item is proposed for the two (2) facilities with open bulletin status. It is concluded that the bulletin concern has been resolved, pending closeout by the NRC of Zion 1,2. Background information is provided in the Introduction and Appendix A.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (USA). Div. of Operational Assessment; Parameter, Inc., Elm Grove, WI (USA)
• Sponsoring Organization: NRC
• OSTI ID: 6528253
• Report Number(s): NUREG/CR-5295; PARAMETER/IE--186; ON: TI91001715
• Country of Publication: United States
• Language: English

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