05000331/LER-1981-003-03, /03L-0:on 810108,drywell Particulate Radiation Element Re 8101B Found Inoperable.Caused by Sensor Failure Due to Condensation on Particulate Detector.New Radiation Element,Mylar Window & Beta Phosphor Installed

/03L-0:on 810108,drywell Particulate Radiation Element Re 8101B Found Inoperable.Caused by Sensor Failure Due to Condensation on Particulate Detector.New Radiation Element,Mylar Window & Beta Phosphor Installed

ML112410878
Person / Time
Site:	Duane Arnold
Issue date:	02/05/1981
From:	Rager M IES Utilities, (Formerly Iowa Electric Light & Power Co)
To:	NRC/OI/RGN-III/FO
Shared Package
ML112410879	List: 05000331/LER-1981-003, Forwards LER 81-003/03L-0 05000331/LER-1981-003-03, /03L-0:on 810108,drywell Particulate Radiation Element Re 8101B Found Inoperable.Caused by Sensor Failure Due to Condensation on Particulate Detector.New Radiation Element,Mylar Window & Beta Phosphor Installed
References
LER-81-003-03L, LER-81-3-3L, NUDOCS 8102120248
Download: ML112410878 (3)

LER-1981-003, /03L-0:on 810108,drywell Particulate Radiation Element Re 8101B Found Inoperable.Caused by Sensor Failure Due to Condensation on Particulate Detector.New Radiation Element,Mylar Window & Beta Phosphor Installed

Event date:
Report date:
3311981003R03 - NRC Website

text

ACCESSION NBR:8102120248 DOC.DATE: 81/02/05 NOTARIZED: NO FACIL:50*331 Duane Arnold Energy Center, Iowa Electric Light & Pow AUTH.NAME AUTHOR AFFILIATION RAGERrM,8, Iowa Electric Light & Power Co, RECIP.NAME RECIPIENT AFFILIATION Region 3, Chicago, Office of the Director SUBJECT: LER 81-003/03L*0:on 810108,drywell particulate radiationi element RE 81l0b found inoperable.Caused by sensor failure due to condensation on particulate detectorNew radiation elementmylar window & beta phosphor installed.

DISTRIBUTION CODE: A002S TITLE: Incident Reports COPIES RECEIVED:LTR L ENCL. L DOCKET #

05000331 SIZE; RECIPIENT ID CODE/NAME:

ACTION:

IPPOLITOT. 04 INTERNAL: A/U COMP&STRU06 A/U MATL & 0008 A/D PLANT SYSIOd A/b SFTY ASSE12 AEUD)

AUX SYS BR 15 CONT SYS BR 11 DIR,DIV OF LIC' DIRHUM FAC $21:

EFF TR SYS-BR23I GEbSCIENCES 26 1&E

05.

LIC GUID BR 30 MECH ENG BR 33i NRC PDR 02 OR ASSESS BR 35 RAUA&&SS BR39 SFTY PROG EVA42 SYS INTERAC B4$

EXTERNAL:

ACtKS NSIC 46 03 COPIES LTTR ENCL 3

3 16 1

1 1

1 1

3 1

1 1

1 1

1 2

1 1

1

.1 1

1 1

i 16 1

RECIPIENT ID CODE/NAME A/D ENV TECH 07 A/D OP REACTOO9 A/D RAD'PROT 11 ACC EVAL BR 14 ASLBP/J.HARD CHEM ENG BR 16 CORE PERF BR 18 DIR,ENGINEERI2o DIRSYS INTEG2 EQUIP QUAL R25 I&C SYS BR 29 JORDANE,/IE MATL ENO BR 32 MPA OP EX EVAL BR34 POWER SYS BR 36 REACT SYS BR 40 REL & RISK A 41 STRUCT ENG BR44 LPDR 03 1

TERA:DOUG MAY 1

COPIES LTTR ENCL 1'

1 1

1 1

1 1

1 1

1 1

1 1

3 3

1 1

1 1

1 1

TOTAL NUMBER OF COPIES REWUIRLD: LTTR NOTES:

REGULATO NFORMATION DISTRIBUTION

)TEM (RIDS) 68 ENCL 68 es 12 10,

toJ Mr. James G. Keppler, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission -

Region III 799 Roosevelt Road Glen Ellyn, IL 60137

Subject:

Licensee Event Report No.81-003 (30 day)

File:

A-118a

Dear Mr. Keppler:

In accordance with Appendix A to Operating License DPR-49, Technical Specifications and Bases for Duane Arnold Energy Center and Regulatory Guide 10.1, please find attached a copy of the subject Licensee Event Report.

(Total of.3 copies transmitted).

Very truly yours, Daniel L. Mineck Chief Engineer Duane Arnold Energy Center Docket 50-331 attachment DLM/MSR/pl

()

cc:

Director, Office of Inspection and Enforcement (30)

U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Director, Management Information and Program Control (3)

U. S. Nuclear Regulatory Commission Washington, D. C.

20555 U. S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D. C.

20555 NRC Rbsident Inspector -

DAEC I/I Duane Arnoid Enerqv Center

• PO. 3o,\\: 351

• Cedar Rapids, Iowa 52406

• 319/851-5611 L~4

z~.

-~-.a'-.4.

/kOOD S

Iowa Electric Light and Power Company February 5, 1981 DAEC-81-81

NRCVOR (7.77) 7 8

CONT 7

8 0T1 7

a 02]

03 IE 8101A, had previously been declared inop. This placed the plant in a 7 I day LCO in accordance with Tech Spec 3.6.C.2 which requires both the sum jp and air sampling systems be operable during reactor pnwer opvrion I Moisture on the radiation element and particulate detector is a recurrin g problem. See RO 77-03 77-04. 78-09. 8Q-038~anfL8LL~QOI 9

SYSTEM

CAUSE

CAUSE COMP.

VALVE CODE CODE SUSCODE COMPONENT CODE SUSCODE SUBCOOe (c Iil l LE I E]

il N

TS IT R I u IS

(.1,.] 8

..1,8 9

to it 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT ER/RO VENTYEA; REPORTNO.

CODE TYPE

--- J L

("

0 1 01 3j L

(.7 IQ 0 3

L 21 22

.3 24 2

27 23 29

.31 AC

,JTURE EP.

SHUTDCWN ATTACHMENT NPRO-4 PRIME COMP.

TA ACTION ON P.AT METHOO HOURS Pm22 SUBMITTED FORM bu8.

SUPPLIER L

)W LEJ@ L J@

LzJO L la lo IInI L.J LNi UJ 33 34 5

36 37 40 41 42 43 CAUSE 0ESCRIPTION AND CORRECTIVE ACTIONS IC Condensate which had collected on RE TI caused sensor failure. A new radiati hosphor were installed to return the I source checked-sat prior to return t 14 RAK-221F radiation element. Desianr 83 F ACI LITY~

STATUS

%POWeR OTHER STATUS I [_El@ 101 9 1 9 NA 7

a 9

0 12 13 44 ACTIVITY CONTENT C)

RELEASED OF RELEASE AMOUNT OF ACTIVITY

[~6] L7J ( EzJ12 NA 7

a 9

to I I PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION 3

[~I LoaLoLt.0LzJL 7

8 9 i

I?

13 PERSONNEL INJURIES NUMBER OESCR!PTION 41 I O1 01 00 NA 7

8 9

11 12 LOSS OF OR DAMAGE TO FACILITY TYPE

DESCRIPTION

I Lz7J@l NA 7

8 9

10 PUBLICITY ISSUED

DESCRIPTION

2 NvI1 NA 7

8 9

10 NAME OF PREPARERP Matthew S, Rager 8101B and its particulate detector

- a so A V ISl C NO 32 COkPOCE MANUFAC JREA N l to 151s LA 47 on element. mylar window, and heta pn detector to operation. RE 8101B was OF OlOiP.

- c

~n

!\\JMC mcIrle~l U

~

V

~

I\\L.

UJJ.L~

• 3 4 ~

view has_

been initiated.

DISCOVERY L\\_

operator 45 46 DISCOVERY DESCRI"tON Observation LOCATION OF RELEASE NAI A

45 go 80so NRC USE ONLY 68 69 so*

P E

319-851-5611 Mt LC E.

S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL 8LOCK:

(PLEASE rRINT OR TY'd ALL REQUIRED INFORMATION)

I1A AC 1 0 0-L o010 I0I-0b0o-lioW0DI 41111 9

LICENSFE CODE 415 CNSE NUMaEA 25 26 LICENSE TYPE 0

57 A

SOURCE

_L 050 0

013311 01 0881 102101 58110 60 6;

OOCKET NUMSER 6a 69 EVENT DATE 74 5

REPORT DATE do EVENT OESCRIPTION AfO PROBA8t.E CONSEQUENCES G I During normal operation, the"B" Drywell Patilte Radiation [l ment, RE 8101F; was unresponsive to a source check. Redundant element-R I

8 770

.80 8008 ad 1-0 I -