ML20138E329
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4 UNITED STATES
$i) (,j NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20ME-0001 April 4, 1994 Docket Nos. 50-335 and 50-389 t
Mr. J. H. Goldberg i
President - Nuclear Division Florida Power and Light Company Post Office Box 14000 Juno Beach, Florida 33408-0420
Dear Mr. Goldberg:
SUBJECT:
ST. LUCIE UNITS 1 AND 2 - GENERIC LETTER 89-10, SUPPLEMENT 5,
" INACCURACY OF MOTOR-0PERATED VALVE (MOV) DIAGNOSTIC EQUIPMENT" (TAC NOS. M88005 AND M88006) 4 On June 28, 1993, the NRC staff issued Supplement 5, " Inaccuracy of Motor-Operated Valve Diagnostic Equipment," to Generic Letter (GL) 89-10, " Safety-1 Related Motor-Operated Valve Testing and Surveillance," requesting nuclear power plant licensees and construction permit holders (1) to re-examine their MOV programs and to identify measures taken to account for uncertainties in properly setting valve operating thrust to ensure operability, and (2) to 1
evaluate the schedule necessary to consider the new information on MOV diagnostic equipment inaccuracy and to take appropriate action in response to that information. Within 90 days of receipt of Supplement 5 to GL 89-10, licensees were required (1) to notify the NRC staff of the diagnostic equipment used to confirm the proper size, or to establish settings, for safety-related MOVs, at.d (2) to report whether they had taken actions or planned to take actions (including schedule) to address the new information on the accuracy of M0V diagnostic equipment.
The staff has reviewed the responses, and has found that, for the most part, licensees and permit holders have been actively addressing the uncertainties regarding the accuracy of MOV diagnostic equipment. The increased inaccuracy of MOV diagnostic equipment can raise questions regarding (1) the adequacy of torque switentsettings.to provide sufficient thrust while not exceeding thrust or torque structural limits, and (2) the capability of actuator motors at current settings.
In their responses, licensees and permit holders indicated that many MOVs had the potential for underthrusting or overthrusting as a result of the higher than expected inaccuracy of MOV diagnostic equipment.
Consequently, some licensees reported that MOVs have been retested, adjusted, or modified to resolve the concerns regarding the accuracy of MOV diagnostic equipment.
You responded to Supplement 5 by letter dated September 24, 1993, and stated that you had previously used ITI-MOVATS TMD for MOV diagnostic testing and are I
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3 currently using Liberty Technologies' VOTES equipment including the new V0TES Version 2.31 software..You also stated that you will retest MOVs setup using the thrust measuring device (TMD).
During a future inspection, the NRC staff will discuss with you the resolution of the MOV diagnostic equipment accuracy issue. Specifically, the staff will
,j discuss the evaluation of MOVs setup with the TMD, the schedule for retesting, and the evaluation of any MOVs setup done using the V0TES equipment before j
receiving the revised software Version 2.31.
l-This ccmpletes our review of this issue and, consequently, we are closing TAC Nos. M88005 and M88006.
4 Sincerely, (Original Signed By)
Jan A. Norris, Sr. Project Manager Project Directorate II-2 Division of Reactor Projects - I/II I
Office of Nuclear Reactor Regulation cc: See next page Distribution l
Docket File PDII-2 RF l
S. Varga l
G. Lainas H. Berkow l
l E. Tana J. Norris l
OGC l;
ACRS (10) l D. Verrelli, RII
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[Phl-2 D:PDIF2 NAME ETANA & f (JNNili HBkR[0d DATE V////94 M/4/94 LJ/4/94
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OFFICIAL RECORD COPY FILENAME: G:\\88005.JAN
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,y Mr. J. H. Goldberg Florida Power and Light Company St. Lucie Plant
'f CC' Jack Shreve, Public Counsel Mr. Bill Passetti Office of the Public Counsel Office of Radiation Control c/o The Florida Legislature Department of Health and
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111 West Madison Avenue, Room 812 Rehabilitative Services 1
Tallahassee, Florida 32399-1400 1317 Winewood Blvd.
4 Tallahassee, Florida 32399-0700 l
Senior Resident Inspector St. Lucie Plant Regional Administrator, RII U.S. Nuclear Regulatory Commission U.S. Nuclear Regulatory Commission 7585 S. Hwy A1A 101 Marietta Street N.W., Suite 2900 Jensen Beach, Florida 34957 Atlanta, Georgia 30323 I
Mr. Joe Myers, Director Mr. H. N. Paduano, Manager Div. of Emergency Preparedness Licensing & Special Projects Department of Community Affairs Florida Power and Light Company 2740 Centerview Drive P.O. Box 14000 i
Tallahassee, Florida 32399-2100 Juno Beach, Florida 33408-0420
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l Harold F. Reis, Esq.
D. A. Sager, Vice President Newman & Holtzinger St. Lucie Nuclear Plant 1615 L Street, N.W.
P.O. Box 128 Washington, DC 20036 Ft. Pierce, Florida 34954-0128 4
John T. Butler, Esq.
C. L. Burton l
Steel, Hector and Davis Plant. General Manager i
4000 Southeast Financial Center St. Lucie Nuclear Plant i
Miami, Florida 33131-2398 P.O. Box 128 4
Ft. Pierce, Florida 34954-0128 Mr. Thomas R.L. Kindred County Administrator St. Lucie County 2300 Virginia Avenue Fort Pierce, Florida 34982 Mr. Charles B. Brinkman, Manager Washington Nuclear Operations ABB Combustion Engineering, Nuclear Power 12300 Twinbrook Parkway, Suite 330 Rockville, Maryland 20852 i
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