Headquarters Daily Report
JULY 03, 2001
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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 II JULY 3, 2001
Licensee/Facility: Notification:
Tennessee Valley Authority MR Number: 2-01-0009
Watts Bar 1 Date: 07/03/01
Spring City,Tennessee
Dockets: 50-390
PWR/W-4-LP
Subject: MANUAL REACTOR TRIP DUE TO INCREASE IN MAIN CONDENSER PRESSURE
Discussion:
At 5:28 p.m. on June 29, 2001, a manual reactor trip was initiated from
100 percent power as required by procedures when main condenser
backpressure limits had been reached. The increased condenser
backpressure occurred when cooling water flow was reduced because of an
obstruction on the suction screens to the condenser cooling water (CCW)
pumps. The licensee determined that several fiberglass corrugated sheets
had broken loose and fallen into the cooling water tower basin and
partially obstructed the suction screens to the CCW pumps. The sheet
material was installed in the upper portion of the cooling water towers
to reduce flow impingement forces on the cooling tower concrete basin.
The licensee determined that the sheet material had been improperly
installed.
The Unit is currently in Mode 5 (cold shutdown). Subsequent to the Unit
shutdown and independent of the reactor trip, while preparing to dump
steam to the atmosphere via the steam generator pressure operated relief
valves, a main steam isolation valve failed to completely close. In
addition, the licensee found several ice condenser doors partially open.
The licensee is in the process of evaluating the cause and effecting
repairs for these problems.
Regional Action:
The residents are monitoring licensee repair and Unit restart activities.
Contact: Paul Fredrickson (404)562-4530
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REGION II MORNING REPORT PAGE 2 JULY 3, 2001
Licensee/Facility: Notification:
Tennessee Valley Authority MR Number: 2-01-0010
Watts Bar 1 Date: 07/03/01
Spring City,Tennessee
Dockets: 50-390
PWR/W-4-LP
Subject: TENNESSEE VALLEY AUTHORITY NUCLEAR (TVAN) ANNOUNCES MANAGEMENT
ROTOTIONAL ASSIGMENTS
Discussion:
On June 29, 2001, TVAN announced several rotational assignments,
effective immediately as follows:
J. Bailey, Vice President of Engineering And Technical Services will lead
a special projects to consider the productive uses of the Bellefonte
site. Jon Rupert, Chief Engineer, TVAN will act in Mr. Bailey's position.
J. Maddox, Manager, Engineering and Site Support at Watts Bar will serve
as TVAN, Chief Engineer. J. Kammeyer will act in Mr. Maddox's position.
Regional Action:
None.
Contact: Paul Fredrickson (404)562-4530
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