ML20209J412
| 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 control center for a valve (SFV-25003), the licensee found two safety-)related wir:s behind a panel inside the 480-volt west Switchgear Room (a vital 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.
L. Norderhaug, F1S 463-3775 CONTACT:
D. Schaefer, FTS 463-3785 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:
CA (Reactor Licensees)
I PDR Resident Inspector g50 79 870427 j
PNS-y-87-003 pop f
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