Protecting People and the EnvironmentUNITED STATES NUCLEAR REGULATORY COMMISSION
ACCESSION #: 9611150001
RG AND E
ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER,
N. Y.
14649-0001 AREA CODE 716546-2700
ROBERT C. MECREDY
Vice President
Nuclear Operations
November 6, 1996
U.S. Nuclear Regulatory Commission
Document Control Desk
Attn: Guy S. Vissing
Project Directorate I-1
Washington, D.C. 20555
Subject: 10 CFR Part 21 30 Day Report
R.E. Ginna Nuclear Power Plant
Docket No. 50-244
Dear Mr. Vissing:
In accordance with 10 CFR Part 21, Reporting of Defects and
Noncompliance, Section 21 (d) (3) (ii), which requires "Written
notification to the NRC ... on the identification of a defect or failure
to comply", the attached 10 CFR 21 report is hereby submitted.
Very truly yours,
Robert C. Mecredy
xc: Mr. Guy S. Vissing (Mail Stop 14C7)
Project Directorate I-1
Washington, D.C. 20555
Regional Administrator
U.S. Nuclear Regulatory Commission
Region I
475 Allendale Road
King of Prussia, PA 19406
Ginna Senior Resident Inspector
Page 2
10CFR21 30 DAY WRITTEN REPORT
I. NAME AND ADDRESS OF THE INDIVIDUAL INFORMING THE COMMISSION:
NAME: Robert C. Mecredy
Vice President Nuclear Operations
ADDRESS: Rochester Gas & Electric Corporation
89 East Avenue
Rochester, New York 14649
II. IDENTIFICATION OF THE FACILITY, THE ACTIVITY, OR THE BASIC
COMPONENT SUPPLIED FOR SUCH FACILITY WHICH FAILS TO COMPLY OR
CONTAINS A DEFECT:
The facility is the R.E. Ginna Nuclear Power Plant. The basic
component is a 350 HP, 1800 RPM, 460 VAC, 3 phase, 5006P Frame,
1.15 SF, vertical hollow shaft motor for use as a Service Water
(SW) pump motor. This component was installed at the R.E.
Ginna Nuclear Power Plant to upgrade the motor for the "A" SW
pump from a 300 HP to a 350 HP motor. (The "A" SW pump was
never declared operable with this defective motor installed.)
III. IDENTIFICATION OF THE FIRM CONSTRUCTING THE FACILITY OR
SUPPLYING THE BASIC COMPONENT WHICH FAILS TO COMPLY OR
CONTAINS
A DEFECT:
The motor was a commercial-grade motor manufactured by:
U.S. Electrical Motors
Division of Emerson Electric Co.
8100 W. Florissant Ave.
PO Box 3946
St. Louis, MO 63136
The motor was procured from:
Auburn Armature, Inc.
48 Canoga St.
Auburn, NY 13021
Note: This motor was purchased commercial-grade, was
commercially-dedicated by Rochester Gas & Electric, and
satisfied all testing requirements included in the procurement
documents.
Page 3
IV. NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY
HAZARD
WHICH IS CREATED OR COULD BE CREATED BY SUCH DEFECT OR FAILURE
TO COMPLY:
A 350 HP motor was installed on the "A" SW pump in July, 1996.
Post-modification functional testing revealed unacceptable
megger readings. The motor was removed from the "A" SW pump,
disassembled and inspected. The inspection revealed
degradation of motor insulation integrity due to damaged motor
leads, which could result in the failure of the motor in
service. The overall quality of the motor was below that
normally expected for a commercial grade motor.
The safety hazard which could be created by such a defect is
the complete loss of Service Water. In the scenario of the "C"
SW pump out of service and a concurrent loss of power to Bus 17
(which supplies power to the "B" and "D" SW pumps), a loss of
all SW would occur if the "A" SW pump failed to operate due to
the identified defect.
V. THE DATE ON WHICH THE INFORMATION OF SUCH DEFECT OR FAILURE TO
COMPLY WAS OBTAINED:
The information was obtained on August 5, 1996.
VI. IN THE CASE OF A BASIC COMPONENT WHICH CONTAINS A DEFECT OR
FAILS TO COMPLY, THE NUMBER AND LOCATION OF ALL SUCH
COMPONENTS
IN USE AT, SUPPLIED FOR, OR BEING SUPPLIED FOR GINNA STATION:
There are four (4) SW pumps located in the Screenhouse Building
at Ginna Station.
A 350 HP motor had previously been procured separately. This
motor was installed to upgrade the existing 300 HP motor on the
"D" SW pump in August, 1995. This 350 motor is of similar
design to the 3 motors discussed below, and was also
manufactured by U.S. Electrical Motors. This motor was tested
satisfactorily and placed in service in August, 1995, and
operated trouble-free. As discussed below, this motor did not
contain a defect.
Three (3) 350 HP motors, manufactured by U.S. Electrical
Motors, were purchased at a later date (as a group) for upgrade
of the existing 300 HP motors on the "A", "B", and "C" SW
pumps. As discussed below, two of these three motors were
discovered to be defective.
Page 4
VII. THE CORRECTIVE ACTION WHICH HAS BEEN, IS BEING, OR WILL BE
TAKEN; THE NAME OF THE INDIVIDUAL OR ORGANIZATION RESPONSIBLE
FOR THE ACTION; AND THE LENGTH OF TIME THAT HAS BEEN OR WILL BE
TAKEN TO COMPLETE THE ACTION:
The following corrective actions have been completed:
1. Ginna Station Maintenance personnel removed the defective
350 HP motor from the "A" SW pump, and shipped this motor
and one uninstalled 350 HP motor to an Appendix B motor
facility. These two motors both exhibited degradation of
motor insulation integrity. The motors were tested,
inspected, and confirmed to be defective. They were
refurbished by the motor facility, and returned to Ginna
Station.
2. The "A" SW pump remained inoperable until one of the above
refurbished motors was reinstalled and satisfactorily
tested in August, 1996.
3. The similar 350 HP motor, installed on the "D" SW pump in
August, 1995, had shown no signs of motor degradation.
However, this motor was removed from the "D" SW pump in
October, 1996, and was replaced by the other refurbished
spare motor.
4. Thus, corrective action was completed for these two
defective motors in August, 1996, and these two
refurbished motors were subsequently installed on the "A"
and "D" SW pumps, and have fulfilled operability test
requirements.
5. Electrical testing on the other two 350 HP motors did not
indicate any degradation of the motor insulation
integrity. Nevertheless, as a conservative measure, they
were shipped to an Appendix B motor facility in October,
1996, for diagnostics and troubleshooting.
6. These remaining two 350 HP motors have been disassembled,
inspected, and tested at an Appendix B motor facility.
Electrical testing, performed at the motor facility,
achieved satisfactory performance results, confirming that
the motor (previously installed on the "D" SW pump) was
operable while in service. However, some minor deficient
conditions were noted on both motors. These motors were
also refurbished. These refurbishments are considered to
be conservative corrective measures which involved motor
rereading, insulation redip and bearing rework.
The following corrective actions are scheduled for completion
by March, 1997:
1. Safety-related motor Commercial Grade Item Engineering
Evaluations (CGIEE's) will be revised to enhance steps for
the examination of windings and overall workmanship to
ensure motors are constructed with acceptable quality.
2. CGIEE preparation guidelines will be enhanced to
incorporate the lessons learned from these defective
motors.
Page 5
VIII. ANY ADVICE RELATED TO THE DEFECT OR FAILURE TO COMPLY ABOUT
THE FACILITY, ACTIVITY, OR BASIC COMPONENT THAT HAS BEEN, IS
BEING, OR WILL BE GIVEN TO PURCHASERS OR LICENSEES:
1. Source surveillance during motor assembly may have
detected this defect.
2. A detailed physical inspection (or disassembly) upon
receipt may have detected this defect.
3. Completion of commercial dedication could be dependent
upon satisfactory completion of post-modification
functional testing.
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