ML20247N871
| ML20247N871 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 05/26/1989 |
| From: | Axelson W, Jackiw I NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20247N837 | List: |
| References | |
| 50-263-89-14, NUDOCS 8906060047 | |
| Download: ML20247N871 (3) | |
See also: IR 05000263/1989014
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U.S. NUCLEAR REGULATORY: COMMISSION
REGION III
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Report No. . 50-263/89014
Docket No. 50-263
License'No'. DPR-22
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. Licensee: ' Northern States Power Company
414 Nicollet Mall
Minneapolis, MN 55401
Facility Name: Monticello Nuclear Power Company
Meeting At: Region III Office, Glen Ellyn, Illinois
. Meeting. Conducted: May 12, 1989
Type of Meeting:
Enforcement Conference
- Inspector: Paul L..Hartmann
Reviewed By:
dc i b 1e
NI' /7
T ro ects Section 2B
Date
,
Approved By
L.
' son, Chief
4~ N 17 -
eactor rojects Branch 2
Date
Enforcement Conference Summary
Enforcement Conference on May 12, 1989 (Report No. 50-263/89014(DRP))
Areas Discussed:
Included a review and discussion of.the violation relating
-to RCIC being made inoperable due to RCIC steamline flooding; the
circumstances surrounding the event; and corrective actions in response to the
event.-
Resul ts: One violation was identified relating to an inadequate procedure
used during preventive maintenance.
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8906060047 890526
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DETAILS
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Enforcement Conference Participants
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C. E. Norelius, Deputy Regional Administrator
E. G. Greenman, Director, Division of Reactor Projects, NRC, RIII
P. L. Hartmann, Senior Resident Inspector, Monticello, RIII
W. A. Shamla, Plant Manager, NSP
I. N. Jacktw, Chief, Reactor Projects Section 28, NRC, RIII
J. J. Stefano, License Pro act Manager, NRR/NRC
W. L. Axelson, Chief, Divnion of Reactor Projects, Branch 2, RIII
L. R. Eliason, Gen. Mgr. Nuclear Plants, NSP
S. J. Hammer, Supt. Operations Engineering, NSP
B. D. Day, Gen. Supt. Engineering & Rad. Prot., NSP
B. A. Berson, Regional Counsel, NRC, RIII
W. H. Schultz, Enforcement Coordinator, NRC, RIII
D. L. Schrum, Project Inspector, NRC, RIII
J. 7. Lacasse, System Engineer, NSP
2.
Enforcement Conference
0n May 12, 1989, an enforcement conference was held at the NRC Region III
office in Glen Ellyn, Illinois, with the individuals listed above
participating. The enforcement conference was a result of an NRC
inspection conducted from March 29 through May 12, 1988 (Inspection
Report No. 50-263/88003) and required additional inspection effort during
the period August 15 through 25,1988(50-263/88015), September 7 through
October 19-1988(50-263/88017), and March 7 through April 17, 1989
(50-263/89011). Additional input was provided to the region by NRR on
March 9, 1989 (TAC 71022). The enforcement conference was announced in a
letter and meeting notice to the licensee dated May 9,1989.
Mr. Norelius began the meeting by stating that the purpose of the enforcement
conference was to discuss the RCIC steamline flooding, and that it was a
potential Severity Level III violation.
Mr. E. G. Greenman discussed the importance of the RCIC system. The NRC
concerns needing resolution were the procedural problems relating to the
lack of time constraints for testing the RCIC alarm and the lack of
control of the instrumentation valves; training concerns because personnel
allowed RCIC to remain unmonitored for an extended period during the test.
Mr. I. N. Jackiw and Mr. P. L. Hartmann presented the technical issues
and the apparent violation.
Mr. J. Lacasse, NSP, began the licensee presentation by:
providing a system
description, providing a chronology of actions relating to the discovery
of the RCIC steamline flooding, and the corrective actions in response to
the discovery.
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Mr. S. Hammer presented the root causes for the RCIC steamline flooding
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which included many procedural inadequacies, one personnel error for not
verifying limit switch (LS) 13-74 valved in or returned to service, and a
component failure. The licensee's preventive actions were procedure
changes, RCIC and HPCI Level Switch Instrument Root Valves Seal wired
open, I&C personnel counseled, and operations personnel cautioned. The
stated factors for this event having limited safety significance were:
RCIC not being required for emergency core cooling system (ECCS), Appendix
R, or high energy line breaks; operator time was available to reset RCIC
overspeed or high exhaust pressure trips and return high pressure coolant
injection (HPCI) to operable status prior fa ADS being required; and other
available backup systems were available to achieve a safe shutdown. This
discussion was followed by a summary of the presented facts.
Mr. E. G. Greenman in his closing remarks stated that the licensee had
given a very good presentation that had clarified several issues and
concerns that the NRC had with this issue. Mr. M. L. Eliason participated
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in this discussion.
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The conference was then adjourned.
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Following the enforcement conference, the NRC staff met to discuss the
RCIC event. Due to prudent supervisory actions in detecting the steamline
full of water and taking immediate corrective actions of draining the
steamline and preventing a significant LC0 violation, and the licensee's
alertness in detecting that RCIC would have tripped from high steamline
exhaust pressure while reviewing Nutech data, and the limited safety
significance of the event; this event should be classified a Severity
Level IV violation for failure to have adequate test controls.
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