ML20207P839

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PNS-IV-87-001:during pre-hot Functional Test Insp of Reactor Coolant Pumps,Licensee Discovered 14-inch Metal Spike Inserted Between Rotor & Stator of Loop C.Formal Access Control Established.Insp for Addl Tamperings in Progress
ML20207P839
Person / Time
Site: South Texas STP Nuclear Operating Company icon.png
Issue date: 01/15/1987
From: Constable G
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:
References
PNS-IV-87-001, PNS-IV-87-1, NUDOCS 8701200303
Download: ML20207P839 (1)


Text

January 15, 1987 PRELIMINARY NOTIFICATION OF SECURITY EVENT - PNS-IV-87-01 This preliminary notification constitutes EARLY notice of events of POSSIBLE national security or public interest significance. The information is as initially received without verification or evaluation, and is basically all that is known by the Region IV staff on this date. i FACILITY: Houston Lighting & Power Company Licensee Emergency Classification:

South Texas Project Notification of Unusual Event Bay City, Texas Alert DN: 50-498 Site Area Emergency General Emergency

__X_ Not Applicable

SUBJECT:

P0TENTIAL TAMPERING  !

During a pre-Hot Functional Test inspection of the reactor coolant pumps (RCPs),

the licensee discovered a 14-inch long metal spike (5/16-inch punch) inserted between the rotor and stator of the loop C RCP. The licensee has established formal access control and is inspecting other active components to determine whether additional examples of tampering are evident. The RCP had not been operated since mid-October 1986. The punch was in a location that indicated an intentional act on the part of an unknown individual. An investigation is in progress.

Neither the licensee nor the NRC plans to issue a press release.

The state of Texas has not been informed.

Region IV received notification of this occurrence by the SRI. Region IV has informed NRR, IE, SP, and PA.

The IAT has been notified and will infonn the FBI.

This information has been confirmed with a licensee representative.

CONTACT: G. L. Constable (FTS: 728-8151)

DISTRIBUTION:

MAIL:

H. St. MNBB E/W Willste XDRiDM8 (Original)

Chairman Zech EDO IE NMSS D0T:(Transonly)

Com. Bernthal PA OIA RES J. A. F. Kelley, RIV Com. Roberts ELD AE00 FAX:

Com. Asselstine MPA VID TRP0 Com. Carr HSAC ACRS SP (Air SECY Phillips Rights)

CA NRR RRI PDR DCS NRC OC g LICENSE F 1

Regional Offices (ReactorLicensee) D P

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( /87 - transmitted via 5520) h\

II/15/87 1/15/87 Jc 0701200303 870115 l

-I 001 PDR