05000331/LER-1981-010-03, /03L-0:on 810224,fan for Standby Filter Unit B Found Not Running During Operational Test.Caused by Personnel Error in Opening Breaker for Control Bldg Emergency Air Supply Fan.Personnel Reinstructed

/03L-0:on 810224,fan for Standby Filter Unit B Found Not Running During Operational Test.Caused by Personnel Error in Opening Breaker for Control Bldg Emergency Air Supply Fan.Personnel Reinstructed

ML112410912
Person / Time
Site:	Duane Arnold
Issue date:	03/25/1981
From:	Rager M IES Utilities, (Formerly Iowa Electric Light & Power Co)
To:	NRC/OI/RGN-III/FO
Shared Package
ML112410913	List: 05000331/LER-1981-010, Forwards LER 81-010/03L-0 05000331/LER-1981-010-03, /03L-0:on 810224,fan for Standby Filter Unit B Found Not Running During Operational Test.Caused by Personnel Error in Opening Breaker for Control Bldg Emergency Air Supply Fan.Personnel Reinstructed
References
LER-81-010-03L, LER-81-10-3L, NUDOCS 8103310679
Download: ML112410912 (4)

LER-1981-010, /03L-0:on 810224,fan for Standby Filter Unit B Found Not Running During Operational Test.Caused by Personnel Error in Opening Breaker for Control Bldg Emergency Air Supply Fan.Personnel Reinstructed

Event date:
Report date:
3311981010R03 - NRC Website

text

REGULATORYNFORMATION DISTRIBUTION S TEM (RIDS)

ACCESSION NBR:8103310679 DOC.DATE: 81/03/25 NOTAR ED: NO DOCKET #

FACIL:50-331 Duane Arnold Energy Center, Iowa Electric Light & Pow 05000331 AUTH.NAME AUTHOR AFFILIATION PAGERM.S.

Iowa Electric Light & Power Co.

RECIP.NAME.

RECIPIENT AFFILIATION Region 3, Chicago, Office of the Director SUBJECT: LER 81-010/03L*0:on 810224,fan for standby filter unit B found not running during operational test.Caused by personnel error in opening breaker for control bldg emergency air supply fan.Personnel reinstructed.

DISTRIBUTION CODE: A002S COPIES RECEIVED:LTR -! ENCL j.

SIZE:- I TITLE: Incident Reports NOTES:

RECIPIENT ID CODE/NAME ACTION:

IPPOLITO,T, 04 INTERNAL: A/D COMP&STRU06 A/D MATL & QU08 A/D PLANT SYSIO A/D SFTY ASSE12.

AEOD ASLBP/JHARD CHEM ENG BR 16 CORE PERF BR 18 DIR,HUM FAC 821 EFF TR SYS BR23 GEOSCIENCES 26 I&E 05 LIC GUID BR

30.

MECH ENG BR 33 NRC PDR 02 OR ASSESS BR 35 R

BRR39 01 EVA42 SYS INTERAC 845 COPIES LTTR ENCL 3

3 RECIPIENT ID CODE/NAME A/D ENV TECH 07 A/D OP REACT009 A/D RAD PROT 11 ACC EVAL BR 14 AEOD/DMU AUX SYS BR 15 CONT SYS BR 17 DIRENGINEERI20 DIRSYS INTEG22 EQUIP QUAL BR25 I&C SYS BR 29 JORDANE,/IE MATL ENG SR 32 MPA OP EX EVAL BR34 POWER SYS BR 36 REACT SYS BR 40 REL & RISK A 41 STRUCT ENG BR44 COPIES LTTR ENCL 1

1 1

1 3

1 1

1 1,

1 1

1 1

3 3

1 1

1 1

EXTERNAL: ACRS NSIC 46 05 16 1

16 1

LPDR 03 1

1 4v I 19BA TOTAL NUMBER OF COPIES REQUIRED: LTTR 68 ENCL-68

w Mw Iowa Electric Light and Ibwer Company March 25, 1981 DAEC-81-171 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.81-010 (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).

Ve truly yours, Daniel L. Mineck Chief Engineer Duane Arnold Energy Center DLM/M$SR/pl Docket 50-331 attachment 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 Resident Inspector -

DAEC Duane Arnold Enemv Center

• PO. Box 351

• Cedar Rpids, Iowa 52406 319/851-5621

NFIC FOR 17-774 M 388 LICENSEE EVENT REPORT CONTROL 8LOCK:

PLEASE ?RINT OR Ty"'i ALL REQUIRED INFORMATION)

Llj 1

I 1

01 1-1 ololololol-hono 03111 TIIL0.

7 8 9 C

LICENSCELICENS NUMER 25 26 LICENSE TYPE 40 57 CAT sa

- CON'T E

LL 10 5 10 [0 01 31 3 I L LT a

01 31 21 5 8 1 8Z

- 1 COCK ETNUMSAR 6a 69

VENT DATE 74 7S REPORT DATE 80 EVENT OESCRIPTION AND PROSA8LE CONSEQUENCES Durn surveillance testing of the.-Standb' Filter Units.(SBFU) the-a or SBFU "B" was found not runningduring an operational test. Investigati.....

on revealed the breaker for the Control BidL Emerq Air Supply Fan, 1V-SF 30B,..hadbeen opened byOperations personnel. Tech.Spec 3 a both trains of the SBFU to be operable during reactor operation. The "A" SBFU had previously been operationally tested sat. No previous occurrence s of this nature have been recorded.

I a89 80 SYSTEM

CAUSE

CAUSE COMP.

VALVe CODE COoE SUBCOOE COMPCNENT CO0E SU8CO0E SUSCOOS SG LA (5 A

' B I L 1 0 WIEI R Z

LjD 7

3 S

10 it 12 13 IS 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION O PRO rEVENT YEAR REPORT NO.

CODE TYPE NO.

of1 11 0 1

0L.

L 0

2uI 1 2

23 24 26 27 28 29 30 31 32 C7ION FUTURe EFFECT SHUTOOWN ATTACHMENT NPRO4 PRIMECOMPOMPONENT TAKEN ACTION ONPLANT METHCO HOURS SUBMITED FORM US.

SUPPLIER MANUFACTURER r[_@

IZJ LzJ 1oool 1! LYNJ@ J 1J@

Z 10 111 33 34 35 36 37 Qo 41 42 43 47 CA;EE DESCRIPTION AND CORRECTIVE ACTIONSs 71 1 Personnel error. Preventative mainte er be opened. Ops personnel inadvert jr instead. This interrupted operatio

( in to be inop. Brkr open for aporox 1 I sat. Ops personnel reinstructed. Pla FACILI STATUS

% POWER OTHER STATUS IJ [E

Of 9 1 5I 1 NA 7

83

!0 12 tT 44 ACTIVt T CONTENT PELEASE0 0% R5EASE AMOUNT OF ACTIVITY L7J LOLB INA 1

3 9 to II 4

• • SRONNEL ixPCSURE2 umiaEA 307Y OESCRIPTi N S0 LOOIJO NA 1.

9 11

!3 13

?5SCSONNEL INJURES ol n Lo n

W1 NA 7

8 I 1 12 LOSS OF OR OAMAGE TO XAC:LIT;Y TYPE ZESCRIP71ON ZZ li NA 8 9 10 Ou8tlCITY DOESCRIPTION

&opesy Matthew Si Raqe nance on "A" SBFU required its break ently ooened the "B" SBFU fan breake nal run of "B" SBFU and caused B-tra 0.5 hrs. Operational test completed nt procedures will be reviewed.

METHOO Cf OISCOVER V OISCOVERY OESCRIPTrOM 32 SB j(ei Surveillance Testing

'5 s4 80 NA 45 LOCATION Of RELEA5E 80 SO 80 NRC USE ONLY 68 69 90 319,851-5611 I

U. S. NUCLEAR REGULATORY COMMSSION 1

.DUANE ARNOLD ENERGY CENTER Iowa Electric.Light and Power Company Licensee Event Report -

Supplemental Data Docket No. 050-0331 Reportaole Occurrence No:

8' 00 During surveillance testing of the Standby Filter Units (SBFU),

the "B"

SBFU was discovered to be not running during a

10-hour operational run.

Investigation revealed that the breaker for the Control Building Emergency Air Supply

Fan, IV-SF-30B, had been opened by Operations personnel.

The breaker was closed and operational test restarted.

The "B"

SBFU was out of service for approximately 10.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />.

Technical Specification 3.10.A.3 requires both SBFUs to be operable during reactor operation.

The "A"

train of SBFU had previously completed its 10-hour operational.

test satisfactorily.

No previous occurrences of this nature have been recorded.

Cause

Description:

Personnel error.

Operations.

personnel had begun the 10-hour operational run of the "B"

SBFU when its breaker was mistakenly opened.

Maintenance personnel had been instructed to perform lubrication on the "A"

SBFU.

To provide for their safety the breaker for that unit's fan was to be opened prior to maintenance.

Poor communications between ops personnel resulted in the wrong breaker being opened.

Corrective Action:

Ops personnel discovered the "B"

SBFU wasn't running at the scheduled completion of its 10-hour run.

Investigation revealed the wrong breaker had been opened and not reclosed following maintenance.

The breaker was closed and the operational test completed with satisfactory results.

Plant procedures will be reviewed to determine if weaknesses which may have contributed to this event can be identified and eliminated.

Operations personnel have been reinstructed on the need to

monitor, more

closely, maintenance on safety-related equipment.

f I