ML20011A418

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LER 81-023/03L-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
ML20011A418
Person / Time
Site: Dresden Constellation icon.png
Issue date: 10/01/1981
From: Bader S
COMMONWEALTH EDISON CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20011A413 List:
References
LER-81-023-03L-02, LER-81-23-3L-2, NUDOCS 8110130326
Download: ML20011A418 (2)


Text

O Common:ealth Edison

. DVR NO.

BEVIATION REPORT STA UNIT YEAR NO.

i 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 CC MODE Start-up p,sp WWT) 0

. 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. -

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

YES x YES ]

30 DAY6,6, N0T ICATl0N

_2 _ NO

] NO

]

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 #! W RESOLUTION APPROVEC AND h I AUTHORIZED FOR CISTRIBUTION 'STATI / TATE SUt{fR I N TENDENT 94=Sf76 10 77 (F0eu 15 3 2= * )

i 8110130326 811001 PDR ADOCK 05000249 -

I S " ~ ~

. .PDR . .-