Part 21 Report - 1997-301
ACCESSION #: 9705140409
PSE&G
Public Service Electric and Gas Company P.O. Box 236 Hancocks Bridge,
New Jersey 08038-0236
Nuclear Business Unit MAY 07 1997
LR-N970289
U.S. Nuclear Regulatory Commission
Document Control Desk
Washington, DC 20555
HOPE CREEK GENERATING STATION
DOCKET NO. 50-354
UNIT NO. 1
LICENSEE EVENT REPORT NO. 97-007-00
Dear Sir:
This Licensee Event Report entitled "Struthers-Dunn 219NE Series Relay
Failures Due to Thermal Degradation of Magnetic Vinyl Plastic Bearing Pad
Material" is being submitted pursuant to the requirements of 10 CFR
50.73(a)(2)(v) and 10 CFR 21.
Sincerely,
Mark Bezilla
General Manager,
Hope Creek Operations
PRD/
SORC Mtg. 97-026
C Distribution
LER File
The power is in your hands. 95-2168 REV 6/94
Document Control Desk
LR-N970289
Attachment A
The following items represent the commitments that the Public Service
Electric and Gas Company is making to the Nuclear Regulatory Commission
relative to LER 354/97-007-00:
1. Panels containing Struthers-Dunn 219NE series relays with degraded
magnetic vinyl plastic bearing pad material are being inspected
weekly to ensure continued operability until the relays are
replaced.
2. Struthers-Dunn 219NE series relays with degraded magnetic vinyl
plastic bearing pad material will be replaced as soon as possible
within the Hope Creek work week schedule. Replacement will be
complete before the end of Hope Creek's seventh refueling outage.
3. Normally energized Struthers-Dunn 219NE series 120 VAC (model number
219BBX222NE) and 24 VAC (model number 219BBX232NE) relays with no
bearing pad or with non-degraded magnetic vinyl plastic bearing pad
material will be inspected to verify no degradation. The results of
this inspection will be assessed to determine the need for
additional inspections until the relays are replaced. This activity
will be completed by August 29, 1997.
4. The SSWS vacuum breaker relays that were omitted from the EQ Program
have been added to the program and will be replaced before the end
of their qualified life (November 24, 1997).
5. Normally energized Struthers-Dunn 219NE series 120 VAC (model number
219BBX222NE) and 24 VAC (model number 219BBX232NE) relays with no
bearing pad or with non-degraded magnetic vinyl plastic bearing pad
material will be replaced before the end of their calculated service
life (April 15, 1998).
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