ML20149H062
| ML20149H062 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 02/15/1988 |
| From: | Musolf D NORTHERN STATES POWER CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM), Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8802190088 | |
| Download: ML20149H062 (1) | |
Text
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l f Nodhern States Power Company 414 Nicollet Man Minneapoks. Minnesota 55401 Telephone (612) 330 5500 February 15, 1988 Director Office of Nuclear Reactor Regulation Attn: Document Control Oesk U S Nuclear Regulatory Commission Washington, D C 20555 PRAIRIE ISLAND NUCLEAR CENERATIhG PIANT Docket Nos. 50-282 License Nos. DPR-42 30-306 DPR-60 Removal of Fire Pumns from Service During Maintenance Activities This report is provided in accordance with Section 3.14.B.2 of the Prairie Island Technical Specifications.
This section requires submittal of a report to the Commission outlining plans and procedures to be used to provide for the loss of redundancy in the fire suppression water system whenever fire pump (s) are inoperable for more than seven days.
On Wednesday, January 13, 1988 the 22 Circulating water pump suction bay was isolated and drained down to perform inspections and preventative maintenance during the refueling outage.
This rendered the 121 Screenwash pump inoperable.
On Friday, February 5, 1988 work was completed and the 121 Screenwash pump was returned to service.
To provide assurance of fire suppression water system redundancy during this period, both the motor driven and the diesel driven fire pumps were run daily to verify their operability as required by Technical Specification 4.16.B.2.
Also, the eight crossover valves from the safety grade cooling water system were available to provide backup water supply to the fire protection system.
This is true even during loss of off-site power.
Please contact us if you have any questions related to the measures taken during this maintenance operation to provide redundancy of fire suppression water supplies.
D M bb.
David Musolf Manager - Nuclear Support Services c: Regional Administrator - III, NRC URR Proj ect Manager, NRC NRC Resident Inspector C Charnoff h
PDR ADOCK 05000282 M b0 8802190088 880215 s
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