ML20245B716

Special Rept:On 870511 & 18,containment Fire Spray Sys Removed from Svc to Perform Insp,Design Change Mods & Miscellaneous Maint.Fire Watch Established.Sys Scheduled to Be Returned to Svc Prior to Startup from mid-cycle Outage

ML20245B716
Person / Time
Site:	San Onofre
Issue date:	06/22/1987
From:	Morgan H SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
TAC-54814, TAC-54815, TAC-64883, NUDOCS 8707010218
Download: ML20245B716 (1)

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Southern California Edison Company SAN ONOFRE NUCLEAR GENERATING STATION P. O. BOX 128 SAN CLEMENTE. CALIFORNIA 92672 H.E. MORGAN TELEPHONE STAft0N MANAGER '

0 14)368-6241 June 22, 1987 U. S. Nuclear' Regulatory Commission Document Control Desk Washington, D.C.

20555

Subject:

Docket No. 50-206 Special Report

-San'Onofre Nuclear Generating Station, Unit 1

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Pursuant'to Section 3.14.B.2.b and 3.14.B.4.b of Appendix A, Technical-i Specifications to Provisional License DPR-13 for San Onofre Unit 1, this submittal provides the required Special Report for inoperable Containment Fire l

Spray system and Containment Fire Detection instrumentation.

On May 11, 1987 with Unit 1 in Cold Shutdown (Mode 5) for the current mid-cycle outage, the Containment Fire Spray system was removed from service -

to perform inspection, design change modifications, and miscellaneous-maintenance.

Before the Containment Fire Spray System'was removed from service, continuous. fire watch and backup fire suppression equipment, pursuant to Technical Specification 3.14.B.2.a', were established.

Compensatory measures'will be maintained until the planned work associated with the Containment Fire. Spray system is completed. The Containment Fire Spray system is scheduled to be returned to service. prior to startup from the current mid-cycle outage. No further corrective action is anticipated.

Additionally, on May 18, 1987, the Containment Fire Detection instrumentation

-was removed from service for surveillance testing.

The continuous firewatch established for the Containment Fire Spray system outage as noted above,' also satisfied the requirement for compensatory 1-hour-firewatch patrols pursuant j

to Technical Specification 3.14.B.4.a.

The Containment Fire Detection 1

instrumentation was returned to service on June 2,;1987.fo110 wing' satisfactory surveillance testing.

1 If you require any additional information, please so" advise.

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x F. R..Huey (USNRC Senior Resident Inspector, Units 1,;21and 3) cc:

J. B. Martin, Regional" Administrator, NRC Region V.

9 Institute of Nuclear Power Operations (INP0)-

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