ML19296B947
| ML19296B947 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 02/07/1980 |
| From: | Vahrenwald J COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML19296B938 | List: |
| References | |
| 80-001-03L, 80-1-3L, NUDOCS 8002220404 | |
| Download: ML19296B947 (1) | |
Text
NRC FOPM 366 U.S. NUCLEAR REGULATORY COMMISSION (7 77)
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LICENSEE EVENT REPORT CONTROL BLOCK: l l
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l l lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)
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7 8 9 LICENSEE CODE 14 15 LICENSE NUMSER 25 26 LICENSE TYPE J0 5 7 CAT 58 CON'T
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8 60 61 DOCKET NUM8ER 68 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PROBAJLE CONSEQUENCES h
[OTTl While performing SBLC Relief Valve Setpoint Check, procedure QOS 1100-4, Relief f0TTlI valve RV 1105A actuated at 1600 psig and relief. valve RV 1105B actuated at 1500 psig. l The Technical Specification 4.4.A.2 limits for SBLC relief valves is 1400-1490 psig. l 0
4 gl The increased setpoints of the relief valves were still within the design pressure g
101s 1 l rating of the SBLC piping.
Subsequently the SBLC system was operable and would have l (O l 7 l l performed had the need arose.
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C00 SUSCO E COMPONENT CODE Sub OD'E SU E
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9 10 11 12 f3 18 19 20 SEQUENTIAL OCCUR RE NCE REPORT REVISION EVENT YE AR REPORT NO.
CODE TYPE NO.
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22 23 24 26 27 28 29 30 31 32 N A O
O PL NT MET HOURS 22 S8 IT POR 8.
SUPPLI MA UFACTURER l x [gl34B l g l5 Z lg
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37 40 41 42 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h i O I The apparent cause of this occurrance is setpoint drif t.
Unit Two is presently l
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shut dOwn for refueling and the valves will be repaired or replaced, and satisfactorily m
tested before starting up.
A supplemental report will be issued when all l
l corrective actions have been completed.
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8 9 80 ST
% POWER '
OTHE R STATUS IS O P DISCOVERY DESCRIPTION NA l
W @l Survei11ance Test l
W lHlh l0l0l0lhl ACTIVITY CONTENT RELEASED OF RELE ASE AMOUNT OF ACTIVITY LOCATION OF RE 8
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6 3 10 11 44 45 80 PERSONNEL EXPOSURES l 0 l 0 l O lhl TYPE @l DESCRIPTION NUMBER Zl NA l
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PERSONNE L INJURIES NUMBER DESCRIPTION NA l
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8 9 11 12 80 LOSS OF OR DAMAGE TO FACIL TY 80 % 220
- 6Y-l TYPE DESCRIPTION W l Zlgl NA 7
8 9 10 80 Lus I I N hl DESCRIPTION ISSUE NA l
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8 9 10 68 69 W. :ll NAME OF PREPARER PHONE: