Morning Report for February 3, 1999
Headquarters Daily Report
FEBRUARY 03, 1999
REPORT NEGATIVE NO INPUT
ATTACHED INPUT RECEIVED RECEIVED
REGION I X
REGION II X
REGION III X
REGION IV X
PRIORITY ATTENTION REQUIRED MORNING REPORT - HEADQUARTERS FEB. 03, 1999
MR Number: H-99-0010
Proposed Generic Communication Date: 02/03/99
Subject: Millstone 2 - Discharge of Carbon Dioxide System in Millstone 2
Cable Spreading Room Affects Control Room
On January 15, 1999 a CO2 discharge inadvertently occurred in the Unit 3
cable spreading room. Approximately 4 hours after this discharge,
control room operators donned self-contained breathing apparatus (SCBAs)
when the scent of wintergreen [CO2 is spiked with the scent to aid
detection] was noted inside the control room envelope.
An NRC inspection team reviewed this event and will document their
findings in an inspection report. In addition, the NRC plans to issue an
Information Notice to provide details of this event to other utilities.
Technical contacts: Jim Trapp, Region I
Chuck Petrone, NRR
REGION III MORNING REPORT PAGE 2 FEBRUARY 3, 1999
United States Enrichment Corporation MR Number: 3-99-0005
United States Enrichment Corporatin Date: 02/03/99
Ptsmouth Gaseous Diffusi Plant VIA Resident Report
Subject: ORGANIZATION ANNOUNCEMENT AT PORTSMOUTH GASEOUS DIFFUSION PLANT
The following management changes at the Portsmouth Gaseous Diffusion
Plant were recently made:
Pat Musser assumed the position of Enrichment Plant Manager, responsible
for directing and coordinating plant operations. Mr. Musser was
previously the Training and Procedures Organization Manager.
Bob Helme was named Engineering Organization Manager, responsible for
engineering activities in support of plant operations, including nuclear
safety (which includes nuclear criticality safety and safety analysis).
Mr. Helme was previously employed at Carolina Power and Light.
David Couser assumed the position of Training and Procedure Organization
Manager, responsible for the technical and qualification training program
and development and implementation of the procedures management program.
Mr. Couser was previously the Training Manager.
Contact: Patric Hiland (630)829-9603
REGION IV MORNING REPORT PAGE 3 FEBRUARY 3, 1999
Entergy Operations, Inc. MR Number: 4-99-0004
Arkansas Nuclear 2 Date: 02/03/99
Russelville,Arkansas Senior Resident Inspector
Subject: INADVERTENT ENTRY INTO REDUCED INVENTORY OPERATIONS
On February 2, 1999, with the unit in the 25th day of the refueling
outage, licensed operators were draining the Unit 2 refueling canal to
the refueling water tank, using two low pressure safety injection (LPSI)
pumps, in preparation for reactor head reassembly. When water level
reached 105 inches, the reactor operator noted that level started to
lower rapidly. Operators stopped one of the LPSI pumps and instructed a
local operator to close the isolation valve to the refueling water tank.
This manually operated valve required 55 turns of the handwheel to fully
close the valve. Within approximately 1.5 minutes, reactor vessel level
dropped to 56 inches. This was below the 65-inch entry point for reduced
inventory operations. (Reference zero on these level instruments is the
bottom of the hot leg, with midloop being defined at approximately 24
inches.) At the lowest water level, 93 inches of water remained above
the top of active fuel. At 90 inches (15 inches below the flange) time
to boil was approximately 1 hour and 20 minutes. Operators started a high
head safety injection pump and refilled the vessel to approximately 90
inches. The reactor coolant system was in reduced inventory for 7
minutes. Level remained well above the point where pump cavitation would
The licensee has stopped all reactor vessel drain activities while an
event investigation is being performed.
The region is developing a special inspection plan. Focused inspection
activities are scheduled to start on February 4, 1999.
Contact: Charles S. Marschall (817)860-8185
David P. Loveless (817)860-8161
Page Last Reviewed/Updated Friday, January 31, 2020