IR 07100101/2012011

Forwards Monthly Status Rept for 871101-1211.Rept Addresses Recovery from Turbine Bldg Fire on 871002-03

ML20234C317
Person / Time
Site:	Fort Saint Vrain, 07100101
Issue date:	12/28/1987
From:	Martin R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Murley T Office of Nuclear Reactor Regulation
References
NUDOCS 8801060188
Download: ML20234C317 (3)

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MEMORANDUM FOR:

T. E. Murley, Director, Office of Nuclear Reactor Regulation FROM:

Robert D. Martin, Regional Administrator, Region IV SUBJECT:

PERIODIC STATUS REPORTS ON SELECTED FACILITIES Enclosed is the monthly status report for Fort St. Vrain. This report j

addresses the recovery from the turbine building fire that occurred on

October 2 and 3, 1987.

j We will continue a monthly report until the plant is ready to begin startup.

At that time, the reporting frequency will be reevaluated.

ORicw v. r,:c. g gy RCDE;I D t.': g.;

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Robert D. Martin Regional Administrator Attachment:

As stated cc:

W. Russell, RA, RI J. Grace, RA, RII A. Davis, RA, RIII J. Martin, RA, RV J. Taylor, DEDR0, EDO J. Keppler, OSP Public Service Company of Colorado ATTN: Robert 0. Williams, Jr.

Vice President, Nuclear Operations 242J W. 26th Avenue, Suite 15c Denver, Colorado 80211 Fort St. Vrain Nuclear Station Manager, Nuclear Production Division 16805 WCR 191 Platteville, Colorado 80651 Fort St. Vrain Nuclear Station P. Tomlinson, Manager, Quality Assurance Division (sameaddress)

Colorado Radiation Control Program Director Colorado Public Utilities Commission

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Memo for T. E. Murley-2-bec:

J. Calvo, NRR

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K. Heitner, NRR RRI-l T. Martin, ED0 DRSS J. Partlow, NRR G. Sandborn L.' Callan, RIV DRS A. Beach, RIV.

RIV File T. Westerman, RIV R. Mullikin, RIV l

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ATTACHMENT Fort St. Vrain Status Report for the November 1 to December 11, 1987 1.

Plant Status On December 11, 1987, Fort St. Vrain was taken critical for the first time since the hydraulic oil fire that occurred on October 2,1987, at 11:50 p.a. (MDT) in the turbine building.

l 2.

Facilities Op_erati_ons Summary l

l The turbine building fire, although limited to only a small portion of l

the turbine building, caused damage to instruments, hydraulic operators, snubbers, hangers, manual valves, safety valves, electrically operated valves, pneumatically operated valves, cable trays, conduits, cables, and structural materials. The licensee, by December 11, 1987, had inspected i

all components in the fire area and had completed restoration of all fire damaged equipment.

This included testing of all affected systems.

3.

Control Room,Sm_oke Ingress

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During the fire, smoke entered the control room from around the doors.

The licensee stated that the concentration of smoke was an eye irritant. The breathing air system was used sporadically.

The licensee determined that the cause of the smoke in the control room was due to a differential pressure between the control room and the turbine building.

The licensee has moved the sensing line from the auxiliary electric room to the control room and has performed preventive maintenance on the ventilation system.

Subsequent testing has shown that the control room can be maintained at a positive pressure.

4.

Restart The NRC (Region IV and NRR) performed onsite inspections of the l

licensee's recovery operations during November and December.

Region IV

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confirmed by letter dated December 11, 1987, that the licensee's short term corrective actions provided an acceptable basis for plant restart.

This was based on the NRC's ongoing inspection of the licensee's fire recovery operations and the completion of NRR's review of specific technical issues. The licensee is continuing with his commitments

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relative to the longer term post-fire evaluations.

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