05000315/LER-1985-043, :Corrective Actions & Preventive Measures Taken Re Discrepancies in Process Sensor Calibr Completed,Per Confirmatory Action Ltr Issued on 850820

From kanterella
(Redirected from ML20141F363)
Jump to navigation Jump to search
:Corrective Actions & Preventive Measures Taken Re Discrepancies in Process Sensor Calibr Completed,Per Confirmatory Action Ltr Issued on 850820
ML20141F363
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 01/02/1986
From: Lauren Gibson
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML20141F349 List:
References
CAL, LER-85-043, LER-85-43, NUDOCS 8601090265
Download: ML20141F363 (3)
v • d • e


LER-1985-043, Corrective Actions & Preventive Measures Taken Re Discrepancies in Process Sensor Calibr Completed,Per Confirmatory Action Ltr Issued on 850820
Event date:
Report date:
3151985043R00 - NRC Website
v • d • e

text

-

NRC form 3ee U 8. NUCLE AR 5.EGULATOAV COMMISSION APPROVED OMB NO.3160 010e LICENSEE EVENT REPORT (LER)

E xa"'S

8' "

F ACILITY NAME til DOCKET NUMSER III PAGEi3a D.

C.

COOK NUCLEAR PLANT, UNIT 1 015 l 0101013 1115 1 lOFl 013 TITLE 141 FAILURE TO CALIBRATE PRIMARY SENSORS EVENT DATE 15)

LIR NUM.ER 161 REPORT DATE 17)

OTHER FACILITIES INVOLVED (Si MONTM DAY vtAR YEAR

'y@

.yy,e$ MONTH OAv YEAR F ACILITV N AVES DOCRET NUMSERi$)

v s

D. C. COOK, UNIT 2 015l01010 1 31116 85 8 l5 0l d 3 0 l1 0l 1 0 l2 8l 6 0l8 3I0 I

~

0 1 5 1 0 1 0 1 0 1 I I THis REPORT 18 SueulTTED PURSUANT TO THE REQU8MEMENTS OF 10 CFR l (Chece orie or enore of the feiten a,1 (116 OPE R ATING MODE W q

30 402tti 20 405(el 60.73teH2Hivl 73.71thi ER 30.40SieH1Hil 60 36(eHit 60 73teHf,"el 73.711cl (105

[ {

20.4054eH1HS1 50,36telt2) 60.73teH28tvul HE pec, A6 20.408(eH1Hs66) 50.73teH2 Hil 50.73teH2HveHAl 366Al 30.408teH1Hivl 50.73mH2Hht 60.73teH2Hvelfal 30.40SieH1Hvl 50.73teH2Huil 50.73teH2Hal LICENSEE CONTACT FOR THIS LER (121 NAME TELEPMONE NUv8ER

'^

L. S. GIBSCGr TECHNICAL NGINEERING SUPERINTEDENT l

6 4 16 151-15 9 1011 COMPLETE ONE LINE FOR EACH COMPONENT FAILURE DESCRiSED IN THIS REPORT (131 C.

REPORTA LE

"'"$5g jC' REPORTA LE

CAUSE

SYSTEM COMPONENT CAU8E SY STEM COMPONENT T

I I I I I I I I

I I I I I t l

l 1 l I I I I I I I

I I I I I I SUPPLEMENTAL REPORT EXPECTED (148 VONTM DAY YEAR YES 199 ve.. temnele EMPECTED Sugarts5 ION DA TEI NO l

l l

A TR ACT s, uoo.ece e...,..

e.e.,.,,ee,,,,,,,,e.ece rvee,,m w tie.

THIS IS A SUPPLEMENTAL REPORT TO LER 85-043 SUBMITTED ON 9-30-85.

THE PURPOSE IS TO REPORT COMPLETION OF CORRECTIVE ACTIONS AND THE PREVENTIVE ACTIONS THAT HAVE BEEN IMPLEMENTED.

WITH UNITS 1 AND 2 IN MODE 5 (COLD SHUTDOWN) AN IE HEADQUARTERS TEAM INSPECTION WAS CONDUCTED IN THE AREA OF INSTRUMENT SURVEILLANCES FROM AUGUST 19 TO AUGUST 28, 1985.

A CONFIRMATORY ACTION LETTER WAS ISSUED ON AUGUST 30, 1985 BECAUSE OF A DIFFERENCE IN INTERPRETATION OF PRIMARY SENSOR REQUIREMENTS.

AS PART OF THE REQUIRED ACTION, A REVIEW OF TECHNICAL SPECIFICATION SURVEILLANCES INVOLVING CALIBRATION OF PROCESS SENSORS WAS CONDUCTED TO ENSURE THAT TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENTS, AS A RESULT OF THE NEW INTERPRETATION, ARE MET.

THIS REVIEW DISCLOSED SEVERAL APPARENT DISCREPANCIES.

ACTION HAS SUBSEQUENTLY BEEN TAKEN TO ENSURE ALL OF THE ABOVE EQUIPMENT IS IN COMPLIANCE WITH TECHNICAL SPECIFICATION REQUIREMENTS.

~

8601090265 860102 PDR ADOCK 05000315 S

PDR s

NRC Form 3e4A U 8. 9tuCLEAR F.E2ULATCAV COMMISSION UCENSEE EVENT REPORT (LER) TEXT CONTINUATION AreaovEO ows No siso-oioa EXPIRES: 8/314 FactLITY NAME Of DOCKET NUMSER (2)

(gR NUMSER lel

  • AGE (31 SE I,

,(((g

[ Ab YEAR m

D. C. 000K, UNIT 1 0 [5 l o l 0 l 0 l3 1115 8I5 0 l 41 3 Oli of 2 F nh

rExtin, o -

c we,., ass.w nn THIS IS A SUPPLEMENTAL REPORT TO LER 85-043 SUBMITTED ON 9-30-85.

THE PURPOSE IS TO REPORT COMPLETION OF CORRECTIVE ACTIONS AND THE PREVENTIVE ACTIONS THAT HAVE BEEN IMPLEMENTED.

WITH UNITS 1 AND 2 IN MODE 5 (COLD SHUTDOWN) AN IE HEADQUARTERS TEAM INSPECTION WAS CONDUCTED IN THE AREA OF INSTRUMENT SURVEILLANCES FROM AUGUST 19 TO AUGUST 28, 1985.

A CONFIRMATORY l

ACTION LETTER WAS ISSUED ON AUGUST 30, 1985 BECAUSE OF A DIFFERENCE IN INTERPRETATION OF PRIMARY SENSOR REQUIREMENTS.

AS PART OF THE REQUIRED ACTION, A REVIEW OF TECHNICAL SPECIFICATION SURVEILLANCES INVOLVING CALIBRATION OF PROCESS SENSORS WAS CONDUCTED TO ENSURE THAT TECHNICAL SPECIFICATION SURVEILLANCE REQUIREMENTS, AS A RESULT OF THE NEW INTERPRETATION, ARE MET.

THIS REVIEW DISCLOSED THE FOLLOWING APPARENT DISCREPANCIES:

INCORE THERMOCOUPLES, (IEEE = 26),USED AS BACK-UP TO SATURATION MARGIN MONITOR, T.S. TABLE 3.3-10, ITEM 11 WIDE RANGE REACTOR COOLANT SYSTEM RESISTANCE TEMPERATURE DETECTORS, (IEEE = 26), T.S. 4.3-7, ITEMS 2 AND 3 NARROW RANGE REACTOR COOLANT SYSTEM RESISTANCE TEMPERATURE DETECTORS, (IEEE = 26),

T.S. TABLE 4.3-1, ITEMS 7 AND 8 HYDROGEN RECOMBINER THERMOCOUPLES, (IEEE = 26), T.S. 4.6.4.2b1 CONTAINMENT DEWPOINT HYGROMETER, (IEEE = 45),

T.S. 4.4.6.lc METEOROLOGICAL INSTRUMENTATION, (IEEE = 45),

T.S. 4.3.3.4, TABLE 4.3-5 SEISMIC SENSORS, (IEEE = XE),

T.S. 4.3.3.3.1, TABLE 4.3-4 THE INCORE THERMOCOUPLES AND BOTH THE WIDE RANGE AND NARROW RANGE REACTGR COOLANT SYSTEM RESISTANCE TEMPERATURE DETECTORS HAVE BEEN i

SUCCESS 7ULLY CROSS-CALIBRATED BY USE OF A NEW SURVEILLANCE PROCEDURE.

PLANT PRACTICES HAVE BEEN MODIFIED TO ASSURE RESICIANCE TEMPERATURE DETECTORS AND INCORE THERMOCOUPLES ARE INCLUDED IN FUTURE CALIBRATIONS.

THE HYDROGEN RECOMBINER THERMOCOUPLE ACCURACY HAS HISTORICALLY BEEN DOCUMENTED IN THE SURVEILLANCE TEST OF THE HYDROGEN RECOMBINER.

BASED ON THE MANUFACTURER'S CRITERIA, THE CURRENT PROCEDURE INCORPORATES AN ACCEPTABLE METHOD OF TESTING THE THERMOCOUPLES, AND HAS BEEN CHANGED TO INCLUDE A SIGN-OFF DOCUMENTING THERMOCOUPLE ACCURACY.

THE CONTAINMENT DEWPOINT HYGROMETERS WERE REMOVED AND RECALIBRATED BY THE MANUFACTURER.

PREVIOUSLY, THEY HAD BEEN SUBJECT TO RECALIBRATION BY THE MANUFACTURER EVERY THREE YEARS, AND WERE RECALIBRATED BY PLANT TECHNICIANS EVERY EIGHTEEN MONTHS.

HOWEVER, THE EIGHTEEN MONTH CALIBRATION, WHIT WAS PERFORMED IN ACCORDANCE WITH 'IHE MANUFACTURER'S TECHNICAL MANUAL, DID NOT INCLUDE THE TEMPERATURE SENSOR.

REMOVAL AND RECALIBRATION OF THE SENSOR HAS BEEN ESTABLISHED ON AN EIGHTEEN MONTH BASIS.

NRC FORM 364A

NRC Form 368A U $ NUCLEAR EEGULATCKY COMMISSION LICENSEE EVENT REPORT (LER) TEXT CONTINUATION Aremoveo ous No asso-oia EXPtRES. 0< 31 88 FACILITY NAME til DOCKET NUMSER (E LER NUMetR 156 PAGE431 "R'.1;'.

0'Jo*.70 vsaa D. C. COOK, UNIT 1 o l5 g o j o l 0 l 31115 BI 5 014l1 0l 1 01 3 OF 0l3 rnrr w

.~..

_ncr anne,mn THE METEOROLOGICAL INSTRUMENTATION HAS HISTORICALLY BEEN CALIBRATED IN ACCORDANCE WITH THE MANUFACTURER'S RECOMMENDATIONS.

SENSOR CALIBRATION OF THE METEOROLOGICAL INSTRUMENTS IS NOT SPECIFIED IN THE MANUFACTURER'S TECHNICAL MANUAL.

AS A COVSERVATIVE MEASURE, NEW SENSORS WITH CERTIFICATES OF CALIBRATION WERE PURCHASED AND INSTALLED.

THE METEOROLOGICAL INSTRUMENTATION CALIBRATION PROCEDURE HAS BEEN CHANGED TO REQUIRE SENSOR CALIBRATION ON A SEMIANNUAL BASIS IN ACCORDANCE WITE TECH SPEC REQUIREMENTS.

THE SEISMIC SENSORS WERE ALSO INVESTIGATED.

IT WAS FOUND THAT THESE SENSORS HAVE HISTORICALLY BEEN SURVEILLANCE TESTED IN ACCORDANCE WITH TECHNICAL SPECIFICATIONS.

IN ALL CASES DESCRIBED ABOVE, PAST SIMSOR CALIBRATIONS HAD BEEN PERFORMED IN ACCORDANCE WITH OUR INTERPRETATION OF TECHNICAL SPECIFICATION REQUIREMENTS AT THE TIME.

THE SURVEILLANCE CONCERNS DESCRIBED HEREIN DID NOT PRESENT A SIGNIFICANT SAFETY CONCERN.

l l

l l

l l

NEC 70mu 364a

Retrieved from "https://kanterella.com/w/index.php?title=05000315/LER-1985-043,_:Corrective_Actions_%26_Preventive_Measures_Taken_Re_Discrepancies_in_Process_Sensor_Calibr_Completed,Per_Confirmatory_Action_Ltr_Issued_on_850820&oldid=4187050"