ML20205E411

Special Rept 87-03:on 870206,fire Loop Isolated Between PIV-27 & PIV-29 Due to Suspected Leak in Sys Piping at Flange Connection to Hydrant 26.Work Request 118428 Initiated to Repair Pipe

ML20205E411
Person / Time
Site:	Rancho Seco
Issue date:	03/16/1987
From:	Julie Ward SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
87-03, 87-3, JEW-87-374, NUDOCS 8703300607
Download: ML20205E411 (2)

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"sPo SACRAMENTO MUNICIPAL UTluTY DISTRICT O P. o. Box 15830, Sacramento CA 95852-1830,(916) 452-3211 AN ELECTRIC SYSTEM SERVING TQH T F CALIFORNIA M 10: 33 JEW 87-374 'D/Q March 16, 1987 J. B. Martin, Regional Administrator U.S. Nuclear Regulatory Commission Region V, Office of Inspection & Enforcement 1450 Maria Lane, Suite 210 Walnut Creek, CA 94596 Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54 SPECIAL REPORT NO. 87-03, FIRE PROTECTION SYSTEM INOPERABLE IN ZONES 81, 82, AND 84

Dear Mr. Martin:

The Sacramento Municipal Utility District hereby submits Special Report No. 87-03 in accordance with Technical Specifications, Section 3.14 and 6.9.5.E. During Cold Shutdown conditions on February 6, 1987, at 11:00 AM, the fire loop was isolated between PIV-27 and PIV-29 because of a suspected leak in the system piping at a flango connection to hydrant 26. That deficiency affected the following fire protection sub-systems:

1) Fire loop piping 99020-10-HE3 between PIV-27 and PIV-29.

The fire loop piping remained out-of-service for greater than the seven days specified in Technical Specification Section 3.14.2.

2) Firo Hydrant 26 This hydrant was out-of-service for greator than the 14 days specified in Technical Specification SecCion 3.14.5.

3) Zone 81, 82 and 84 Suppression These water suppression sub-systems were out-of-service for greator than the 14 days specified in Technical Specification Section 3.14.3.

0703300607 070316 PDH ADOCK 0D000312 G PDH N 1 10

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RANCHO SECO NUCLEAR GENERATING STATION ! 14440 Twin Cities Road, Herald, CA 95038 9799;(209) 333 2035 *

,, _k J. B. Martin March 16, 1987 Work Request No. 118428 was initiated on February 6, 1987 to repair the leaking pipe. That work request was completed and the sub-systems listed above were returned to service on March 11, 1987.

Compensatory measures to establish fire watches and lay-out hoses were performed in accordance with Section 3.14.3 and 3.14.5 of the Technical Specifications for each of the above listed fire protection sub-systems between February 6, 1987, and March 11, 1987.

If there are any questions concerning this report, please contact Mr. Ron W. Colombo at (916) 452-3211, extension 4236.

Sincerely, w

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I(r' 29 . Ward Deputy General Manag r, Nuclear Attachment cct A. D'Angelo S. Miner INPO

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