ML20056H395
| ML20056H395 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 08/25/1993 |
| From: | Pulsifer R Office of Nuclear Reactor Regulation |
| To: | Leslie Liu IES UTILITIES INC., (FORMERLY IOWA ELECTRIC LIGHT |
| References | |
| IEB-93-003, IEB-93-3, TAC-M86891, NUDOCS 9309090248 | |
| Download: ML20056H395 (4) | |
Text
f* ** %
4 [ h.
d UNITED STATES j
j NUCLEAR REGULATORY COMMISSION "g $g j
WASHINGTON, D C. 20S55 0001 e
August 25, 1993 Docket No. 50-331 Mr. Lee Liu Chairman of the Board and Chief Executive Officer Iowa Electric Light and Power Compar.y Post Office Box 351 Cedar Rapids, Iowa 52406
Dear Mr. Liu:
SUBJECT:
RESPONSE TO NRC BULLETIN 93-03, " RESOLUTION OF ISSUES RELATED TO REACTOR VESSEL WATER LEVEL INSTRUMENTATION IN BWRS" (TAC NO. M86891)
We acknowledge receipt of your response, dated July 20, 1993, to NRC Bulletin (NRCB) 93-03. The NRCB was issued May 28, 1993, to all holders of operating licenses or construction permits for Boiling Water Reactors (BWRs) with the exception of Millstone, Unit I and Big Rock Point.
It requested licensees to take short-term compensatory actions within 15 days of the bulletin to ensure operators can identify and mitigate potential level errors. The NRCB also requested licensees to implement hardware modifications at the first cold shutdown after July 30, 1993, to ensure the level instrumentation system design of high functional reliability for long-term operation.
Your response stated that you: (1) have implemented appropriate short-term compensatory measures, and (2) were going to install a continuous back fill system similar to that installed at Hillstone, Unit I during refueling outage RF0 12 which commenced on July 29, 1993.
Subsequently, you completed a Safety Evaluation (SE 93-25) and have determined that the modification does not involve an unreviewed safety question, and you will implement the change under 10 CFR 50.59.
Based on the information provided in your July 20, 1993 letter, we consider your response to NRCB 93-03 to be accepttble.
Please retain records related to your actions taken in response to this Bulletin for possible future inspection by the NRC staff.
tM
$' f, N J P ~i~t g n
7nm 93o909024s 930825 PDR ADOCK 05000331 1
0 PDR L
IfD
e o
Mr. Lee Liu
-2_
August 25, 1993 This completes the licensing action for TAC No. M86891. As stated in your reponse, you will provide a report within 30 days after startup from refueling outage RF0 12.
Sincerely, t
Robert M. Fu sife, Project Manager Project Directorate III-3 Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc: See next page e
T
r v
Mr. Lee Liu August 25, 1993 This completes the licensing action for TAC No, M86891. As stated in your reponse, you will provide a report within 30 days after startup from refueling l
outage RF0 12.
Sincerely, Original Signed By:
Robert M. Pulsifer, Project Manager Project Directorate III-3 Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc: See next page DISTRIBUTION Docket File NRC& Local PDRs PDIII-3 r/f PDIII-3 Gray J. Roe J. Zwolinski J. Hannon M. Rushbrook R. Pulsifer OGC ACRS (10)
E. Greenman, RIII J. Clifford A. Cubbage (8-E-23) r V%
LA:YI'. 3 PM:PD D:PDIII-3 MRus2 oo RPuls er:sw JHannon i
8/g/93 8/(f/93 8/25/93
e-Mr. Lee Liu Iowa Electric Light and Power Company Duane Arnold Energy Center s
cc:
Jack Newman, Esquire Kathleen H. Shea, Esquire Newman and Holtzinger 1615 L Street, N.W.
Washington, D.C.
20036 Chairman, Linn County Board of Supervisors Cedar Rapids, Iowa 52406 lowa Electric Light and Power Company ATTN: David L. Wilson Plant Superintendent, Nuclear 3277 DAEC Road Palo, Iowa 52324 Mr. John F. Franz, Jr.
Vice President, Nuclear Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324 Mr. Keith Young Manager, Nuclear Licensing Duane Arnold Energy Center 3277 DAEC Road Palo, Iowa 52324 U.S. Nuclear Regulatory Commission Resident Inspector's Office Rural Route #1 Palo, Iowa 52324 Regional Administrator, Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 Mr. Stephen N. Brown Utilities Division Iowa Department of Commerce Lucas Office Building, 5th Floor Des Moines, Iowa 50319