PNO-IV-97-003, on 970104,shut Down to Mode 3 to Troubleshoot & Repair FW Isolation Valve Hydraulic Actuator Pump Was Greater than 72 Hr.State of Tx Will Be Informed

PNO-IV-97-003:on 970104,shut Down to Mode 3 to Troubleshoot & Repair FW Isolation Valve Hydraulic Actuator Pump Was Greater than 72 Hr.State of Tx Will Be Informed

ML20133C163
Person / Time
Site:	Comanche Peak
Issue date:	01/06/1997
From:	Ron Kopriva, Vonna Ordaz NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:
References
PNO-IV-97-003, PNO-IV-97-3, NUDOCS 9701070053
Download: ML20133C163 (1)

. _ _ .

January 6,1997 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PNO-IV-97-003 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significence. The information is as initially received without verification or evaluation, and is basically all that is known by Region IV staff in Arlington, Texas on this date.

Facility Licensee Emeroency Classification Texas Utilities Electric Co. Notification of Unusual Event Comanche Peak 2 Alert Glen Rose, Texas Site Area Emergency Dockets: 50-446 General Emergency X Not Applicable

Subject:

PLANT SHUTDOWN GREATER THAN 72 HOURS On January 4,1997, Unit 2 shut down to Mode 3 to troubleshoot and repair a feedwater isolation valve hydraulic actuator pump that was cycling excessively. Other maintenance '

activities during the outage include repairs to a hydraulic oil cooler on one of the main transformers, an offsite electrical bus outage, and maintenance on a heater drain pump and both main te9dwater pumps. The licensee expects the outage to last approximately 86 hours9.953704e-4 days <br />0.0239 hours <br />1.421958e-4 weeks <br />3.2723e-5 months <br /> and to return to Mode 1 by January 8.

The resident inspectors will monitor the licensee's activities as part of the normalinspection program.

/

The state of Texas will be informed.

Region IV received notification of this occurrence by telephone from the resident inspectors at 3 p.m. on January 3,1997. Region IV has informed EDO, NRR, and PA.

3 The information herein has been discussed with the licensee and is current as of 1:45 p.m.

on January 6, '997.

Contact:

RON KOPRIVA VONNA L. ORDAZ (817)860-8104 (817)897-1500 ip 9701070053 970106 PDR I&E PNO-IV-97-OO3 PDR l bod Jl

(