05000249/LER-1981-023-03, /03L-0:on 810904,while Conducting Quarterly Scram Discharge Vol Continuous Level Monitor Calibr Check,West & East Bank/East Transducer high-high Level Alarm Tripped. Caused by Setpoint Drift

/03L-0:on 810904,while Conducting Quarterly Scram Discharge Vol Continuous Level Monitor Calibr Check,West & East Bank/East Transducer high-high Level Alarm Tripped. Caused by Setpoint Drift

ML20011A418
Person / Time
Site:	Dresden
Issue date:	10/01/1981
From:	Bader S COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20011A413	List: 05000249/LER-1981-023, Forwards LER 81-023/03L-0 05000249/LER-1981-023-03, /03L-0:on 810904,while Conducting Quarterly Scram Discharge Vol Continuous Level Monitor Calibr Check,West & East Bank/East Transducer high-high Level Alarm Tripped. Caused by Setpoint Drift
References
LER-81-023-03L-02, LER-81-23-3L-2, NUDOCS 8110130326
Download: ML20011A418 (2)

LER-1981-023, /03L-0:on 810904,while Conducting Quarterly Scram Discharge Vol Continuous Level Monitor Calibr Check,West & East Bank/East Transducer high-high Level Alarm Tripped. Caused by Setpoint Drift

Event date:
Report date:
2491981023R03 - NRC Website

text

O BEVIATION REPORT i

DVR NO.

Common:ealth Edison STA UNIT YEAR NO.

e 3 31 - 50 PART 1[ TI TLE OF DEVIATION West East and East East Scran riischarge Header OCCURRED Level Monitor High-High Level Trip greater than 2.5" 9/4/81 1100 DATE TIME SYSTEM AFFECTED 300 Pt. ANT CONDITIONS TESilNG Control Rod Drive Start-up 0

CC MODE p,sp WWT)

. LOAD (MWE)

YES NO CESChrtiON OF dVEN."

~

Found High-L gh level alarm at 2.6" during scram discharge volume continuous level monitor cali-bration check, DIS 300-5.

Limit is less than or equal to 2.5".

DESCRIPTION OF CAUSE OTHER APPLICABLE INFORMATION Adjusted delay calibration and gate no. 2 position. Recalibrated alarms at 2.4" increasing and verified repeatability.

EQUIPMENTld LYES DR NO.

WR NO.

FAILUR' Alan R. Zapotocky-9/4/81 I

INO RESPONSIBLE SUPfevlSOR OATE PART 2 l OPERATING ENGINEERS CCMMENTS The aernointa yege immediatelv readiusted to trip at less than or equal to 2.5" and the surveil-=

t wca es rarun to verifv reraatabilitv.

SAFETY-TYPE OF CEVIATION EVENT OF POTENTI AL TECH SPEC 140N-REPCR TA BLE ANNUAL RELATED REPORTABLE OCCURRENCE PUBLIC INTEREST VIOLATION OCCURRENCE REPGHTING WR ISSUED 14 DAY 10CFR21 YES ]

YES x 30 DAY N0T ICATl0N

]

]

NO NO 6,6,

_2 REPORTABLE CCCURRENCE ACTION ITEM NO.

PROMPT ON-SI TE NOTI FICATION NUMBER R. M. Ragan 9/8/81 1030 XX7JiX 81-23/03L-0 N/A I

E DATE TIME TI TLE CATE TIME 24-HOUR NRC NOTIFICATION (Courtesy)

PROMPT OFF-S t TE NOTI FI CATION X

TPH Tom Tongue 9/8/81 0954 F. A. Palmer 9/8/81 1202-REGION III DATE TIME TITLE DATE TIME TGM REGION lli & COL CATE TIME TI TLE DATE TIME i

RESPONSI BLE COMP ANY OFFI CER I NFO PMED O F 10CF R 21 PONDITIONS AN D TW E T R DEDOAT TO NPC TtTLE DATE s i M t.

REvt EW AND COMPLETED -Michael Wright

'9 /8/8.1 1

CP E R A TJN G ENG l a c,r rt e,

DATE CEP BY STATION REVIEW

,]

g DATE

1. ! W RESOLUTION APPROVEC AND h

I AUTHORIZED FOR CISTRIBUTION

'STATI SUt{fR I N TENDENT

/ TATE 94=Sf76 10 77 (F0eu 15 3 2= * )

i 8110130326 811001 PDR ADOCK 05000249 I

S

" ~ ~

..PDR.