Part 21 Report - 1997-251
ACCESSION #: 9705300004
Solutions for Today....Standards
for Tomorrow
(714) 528-2301
ENERTECH
2950 Birch Street, Brea,
CA 92821-6235
FAX (714) 528-0128
March 21, 1997
Document Control Desk
U.S. Nuclear Regulatory Commission
Washington, D.C. 20555
Subject: Potential reportable defect in BW/IP Electro-Hydraulic
Actuators, Model number 88500, to properly operate on demand at
the McGuire Station.
McGuire is performing a root cause investigation, and is communicating
with the hydraulic fluid manufacturer for assistance. Enertech has
personnel on-site assisting the McGuire personnel, and is in contact with
the actuator manufacturer. BW/IP (actuator manufacturer) is in the
process of evaluating this event under their Part 21 program.
It is suspected that the hydraulic fluid temperature inside the plunger
area of the solenoid valve exceeded the manufacturers recommendations for
continuous operation and effected the performance of the actuator.
Regards,
Frank U. Erlach
President
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