United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for January 6, 1999

                       Headquarters Daily Report

                         JANUARY 06, 1999

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                    REPORT             NEGATIVE            NO INPUT
                    ATTACHED           INPUT RECEIVED      RECEIVED

HEADQUARTERS                           X
REGION I                               X
REGION II                              X
REGION III                             X
REGION IV           X
PRIORITY ATTENTION REQUIRED  MORNING REPORT - REGION IV  JANUARY  6, 1999

Licensee/Facility:                     Notification:

Entergy Operations, Inc.               MR Number: 4-99-0002
Arkansas Nuclear 1                     Date: 01/06/99
Russelville,Arkansas                   SRI by E-Mail
Dockets: 50-313
PWR/B&W-L-LP

Subject: RESTART FROM SHUTDOWN EXCEEDING 72 HOURS
         REFERENCE:  Event Numbers 35192, 35199


Discussion:

On December 28, 1998, operators at ANO Unit 1 tripped the unit from 7
percent power when a large influx of fish (shad) caused a loss of
circulating water system suction pressure. Since the shutdown, the plant
staff has modified the traveling screens to improve fish removal.  The
changes included upgrading the motors to increase the screen speed and
adding a second set of fish lips to the screens to remove more fish. In
addition,they replaced fiberglass screens with steel screens in two of
the four intake bays, replaced the screen motor breakers with breakers of
increased trip current ratings, and resized the shear pins on the screen
to ensure that the pins protect the motors from overload.  The plant
staff demonstrated the effectiveness of the modifications prior to plant
restart.

Upon completion of these corrective actions, operators began to withdraw
control rods at 3:27 p.m. on January 5, 1999, made the plant critical at
5:56 p.m., and closed the main generator output breaker at 11:28 p.m. As
of 7 a.m. on January 6, operators were holding the plant at 26 percent
power while technicians made adjustments to a main feedwater low flow
isolation valve.  Plant management intends to resume the increase to full
power when workers have completed the valve adjustment.

Regional Action:

The resident inspectors are monitoring the power ascension.

Contact:  Charles Marschall          (817)860-8185
          Kriss Kennedy              (501)968-3290
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