ML20054E069

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LER 82-013/03L-0:on 820319,surveillance Revealed Rod Block Monitor a Out of Calibr in Nonconservative Direction.Trip Point Exceeded Limits.Caused by Instrument Drift.Monitor a Adjusted to Bring Trip Point within Tech Spec Limits
ML20054E069
Person / Time
Site:  Constellation icon.png
Issue date: 04/16/1982
From: W. Verne Childs
POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20054E066 List:
References
LER-82-013-03L, LER-82-13-3L, NUDOCS 8204260100
Download: ML20054E069 (1)


Text

i NRC FORM 066 U.S. NUCLEAR REGULATORY COMMISSION j (707) s' UCENSEE EVENT REPORT CONTROL BLOCK: l l l l l l l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6 jo j t8l 9l Nl Yl Jl Al Fl 1lgl50 l 0 l -l 0 l 0LICENSE l 0 lNUMBER 0 l - j 0 l 0 l 025lgl 264 l 1LICENSE l 1 l TYPE 1 l 1JO lgl57 CAT l 58 lg 7 LICENSEE CODE 14 1 CON'?

3$ 3 i60 L i@61l 0l 5 OOCK l 0l 0 l 0l 3l 368l3 69@ l0EVENT l3 DATE l1 l9 l874 l2 75]g l REPORT 0l 4l1l6l8l2lg 10111 80 i 8 ET NUV8ER DATE EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h 10121l During normal operation, surveillance -revealed Rod Block Monitor A out of l gl calibration in the non-conservative direction. TS Table 3.2-3 requires a flow ,

10141 l biased rod block monitor trip point of equal to or less than 108 at 100 percent ,

,0,3,  ;

rated core flow. Actual trip would have occurred at 108.2. No significant ,

O 3 l hazard existed. l 1017Il l I

10181l 80 7 8 9 "

COIE" "^E CO SuSCi5E COMPON ENT CODE SUB O E $ f0E IOIel 7 8 l 1 l B l@ [_E.J@ l E f3l @ l IlNlSlTlRlU[@ W @ ] @

9 10 11 12 1a 19 20 SEQU ENTI AL OCCURRENCE REPORT REVISION EVENT YE AR REPORT NO. CODE TYP NO.

LER RO

@ aEg 18 l2 l 21 22

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27 10131 28 29 l'El 30 l--!

31 10 1 J2 TK N AhCN O PLANT .IE HOURS 22 S8 4 FOR" 8. SUP IE VANUF C RER lJJE l@l34Z l@ l35 Zl@ l36Z l@ l0l0l0l 37 40 l [N lg 41 l [l@ 43

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42 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h I i 10 l I Instrument drift is beld ved to be the cause. Rod block monitor A was immediately l 1 i I adiusted to brina the trip point to within TS limits. I

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U_Li,j l 80 7 8 9 SA S  % POWER OTHER STATUS IS Y DISCOVERY CESCRIPTION NA Surveillance l 11 Is l lE l@ l0 l 8 l2 l@l l W @l ACTIVITY CO TENT-CELEASE AMOUNT OF ACTIVITY LOCATION OF RELEASE NA NA l I1 7

168 9I W @D 10- OF RELEASELzJ@l 11 44 l l 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION y l 0 l 0 l 0 l@l Z l@l NA l PERSONNE L INJURIES Nuv8ER DESCRIPTION y l0l0l0l@l NA 80 l

7 8 9 11 12

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