ML20209J412

From kanterella
Jump to navigation Jump to search
PNS-V-87-003:on 870427,two safety-related Wires Inside 480- Volt West Switchgear Room Controlling Sys for Train a Suction Valve from Borated Water Tank to Low Pressure Safety Injection/Containment Spray Sys Discovered Cut
ML20209J412
Person / Time
Site: Rancho Seco
Issue date: 04/27/1987
From: Norderhaug L, Schaefer D
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:
References
PNS-V-87-003, PNS-V-87-3, NUDOCS 8705040279
Download: ML20209J412 (1)


Text

o 1 PRELIMINARY NOTIFICATION OF SAFEGUARDS EVENT PNS-V-87-03' Date: April 27, 1987 This preliminary notification constitutes EARLY notice of events of POSSIBLE national security or public interest significance. The infonnation presented is as initially recaived without verification or evaluation and is basically all that is known by the Regicn V staff on this date.

FACILITY: Sacramento Municipal Utility District Emergency Classification Rancho Seco Nuclear Power Plant Notification of Unusual Event Docket No. 50-312 Alert Site Area Emergency General Emergency

SUBJECT:

MALICIOUSMISCHIEF(CUT /DAMAGEDWIRES)

At approximately 10:30 AM, PDT, April 27, 1987, as a result of a recent test of the motor controlacenter wir:s behind for a valve panel inside (SFV-25003),

the 480-volt the licensee west Switchgear found Room (atwo vitalsafety-)related area that appeared to have been cut. These two wires are part of a bundle of approximately twelve wires, and control the system for the A-train suction valve from the borated wat:r storage tank to the low pressure safety injection / containment spray system.

The licensee has notified the FBI, and the licensee is conducting a preliminary investigation pending the arrival of the FBI.

Ranch 3 Seco has been in a cold shutdown condition since December 26, 1985. The licensee is attempting to determine the date that the related motor control center was last tested.

Tha IAT was notified at 1:00 PM, and the State of California was notified at 3:00 PM, April 27, 1987.

The licensee has notified local media. Region V is prepared to respond to media inquiry.

R:gionV(SanFrancisco)receivednotificationofthisoccurrencefromthelicenseeat 12:30 PM, April 27, 1967.

This information is current as of 4:00 PM, PDT, April 27, 1987.

CONTACT: D. Schaefer, FTS 463-3785 - L. Norderhaug, F1S 463-3775 DISTRIBUTION H St. MNBB Phillips E/W Willste ~ Air Rights Mail:

Chairman Zech E00 NRR IE' NMSS ADM:DNB Com. Carr PA OIA RES D0T:Trans Only Com. Bernthal MPA AE0D Applicable State Com. Roberts OGC Cem. Asselstine Regions:

SECY INPO NSAC ACRS Licensee:

CA (Reactor Licensees) I PDR Resident Inspector g50 79 870427 j PNS-y-87-003 pop g

f