ML17252B533

LER 81-020/03L-0 for Dresden, Unit 2 Re During Refueling Outage LPCI Test Spray Valve Failed to Shut Electrically, One Set of Thermal Contacts Would Not Reset

ML17252B533
Person / Time
Site:	Dresden
Issue date:	02/02/1981
From:	Scott D Commonwealth Edison Co
To:	James Keppler NRC/RGN-III
References
DJS LTR 81-107 LER 81-020/03L-0
Download: ML17252B533 (3)

Text

{{#Wiki_filter:l i

• 1

---

'

()s6 e

 ...                   Commonwealt.son                  ,':
     ,,                Dresden Nuclear Po R.R. #1
                                               . tation
                                                        *1-.. J Morris, Illinois. 60450
-~b                    Telephone 815/942-2920
               ....                                             February 2, 1981 DJS LTR 1/81-107 James G. Keppler, Regional Director Directorate of Regulatory Operations                       Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, I.L 60137 Reportable Occurrence Report l/81-02/03L-0, Docket 11050-237 is being submitted to your office in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2.(b), .conditions leading to operation in a degraded mode permitted by a limiting condition for operation or plant shutdown required .by a limiting condition for operation.
               ~*

Ii#'\* LJj}_uif-c

                            ,...._ ..                           D. J. Scott   *
                            ;::

Station Superintendent Dresden Nuclear Power Station DJS:lg Enclosure cc: Director of Inspection & Enforcement Director of Management Information & Program Control U.S. NRC, Document Mgt. Branch File/NRC

NRC FORM 366 * ** u~ S. NUCLEAR REGULATORY COMMISSION 17-771

                                                                                .ICENSEE EVENT REPORT                                                           e
        ,;;..CJ ltONTROL BLOCK:            l 1

I I I I 10 6 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI

                                                                                                                                                                                                    .

l2

TIJ

 .*          8 I I I LID IR I s I 2 9         L.ICENSEE CO.OE 101 0
                                                   . . .14        15*

I 0 I - I 0 I 0 I 0 I 0 I 0 I - I 0 I 01014 11 11 11 11 101 L.ICENSE NUMBER

• 25 2B L.ICENSE TYPE . JO I I© 57 CAT 58 Wn

[ill]  :~~~~ W©I o Is I 0-1 *o Io I 2 I 3 I 1 l(?)I ol ii ol sl al 11@!0 1*1I2 I 9 I a I 1 I@ ' 7 8 60 61 DOCKET NUMBER 6B 69 EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION A~.o PROBABLE CONSEQUENCES @ . * [[ill !During Unit 2 refueling outage LPCI Test Spray yalye failed to shut electrically. (]:I!] !One set of thermal. contacts would not reset. The safety significance was minimal C2:TIJ I since the valve could be manually shut and the reactor was in cold shutdown. There I l:[TIJ !was no effect on public health or safety. This is the first occurrance of this type [[TI] lfor this valve I. [ill] ] !continue to be checked* during outages; per e~ tab lis~e:.;d;;...ip~r:.:o:;.;c::.;e::.;d::.;u::.r:..e=s.:..- - - - - - - . . . - - - _ . Cilil 7 8 9 80 FACIL.ITY t3i)\ METHOO OF . ~

          .      STATUS                % POWER                            OTHER STATUS         i..::::J*    OISCOVERV                                          OISCOVERV OESCRIPTION ~

[ill] l!!J@ I 0 I 0 I 0 l@I....*--=N...,/A.....__ __.I LA..J@I Operator. Obseryation .. 7 8 9 10 12* 1'.3 44 45 . 46 . . . 80 ACTIVITY CONTENT t:::;\ REL.EASED OF REL.EASE AMOUNT OF ACTIVITY ~ L.OCATION OF REL.EA$E @ [ill] ~@ LI@I . N/A N/A 7 8 9 10 11 44 45 80 PERSONNEL. EXPOSURES r.:;;.., NUMBER ~TYPE~ DESCRIPTION [ill] 7 8 9 I ol ol ok~W~~--------------N~A~---------------...J 11 12 13 80 PERSONNEL. INJURIES I::\ NUMBER DESCRIPTION6

 *rr:I:TI 7         8 IO IO IO 11l@).___~~---~~~-----~~~~_..:.;.;N/~A;...._~--.~~-------~~----~~

9 12 . 80 L.OSS OF OR DAMAGE TO FACIL.ITY TYPE DESCRIPTION

                                                               '4J' i,;:;;:;

9 l.Ll@ .. . . N/A. 7 8 9 10 . 80 ISSU=~~~[s"CRIPTION@ . NRC USE ONL y "' IIIIJ l!Ll~--~------------~. . . . .u-~--------,__. 7 8 9 . 10 68 I 69 I I I I I I I I I I I I~ 0 NAMEOFPREPARER--.K_._z_i_rw_a_s_ _ _ _ _ _ _~~--- PHONE: 815-942-2 920 Ext. 422 Q.

                                                                                                                                                                                                                            "

e

                                                                 ~ . .     . ........ ********* - . - ..... *- ..... .
        *l*
            ~

C'a rbriioiiweatth

                        -

Edison.

• DVR DEVIATION REPORT

                                                               .STA D                                                                       UNIT YEAR 2 -       81- 3 NO.

OCCURRED 1-5-81 1500 c OF LPCI TEST SPRAY VALVE 2-1501-20B. DATE

• TIME SYSTEM AFFECTED 1500 PLANT CONDITIONS TESTING LPC! D IXJ

                                                . MODE SffiJTPOWN      PWR MWT * .                  0                  LOAD MWf..      0         YES    NO DESCRIPTION_ OF EVENT VALVE 2-1501-20B WOULD NQT CLOSE ELECTRICALLY, ONE SET .OF AUXILIARY CONTACTS WOULD NOT DESCRIPTION OF CAUSE IINJ{NQWN AT THIS TIME.

OTHER APPLICABLE INFORMATION REACTOR IN COLD SHUTDOWN, LOW PRESSURE EC_CS NOT ~QlJ.IRED EQUIPMENT rD YES OR NO. WR NO.

                                                                                       . J. Fideler                                            1/5/81 FAILURE         ONO                        Dl0923                                                                                             c RESPONSIBLE SUPERVISOR

• DATE

. PART 2 I OPERATING ENGINEERS COMMENTS FAILURE OCCURED WHILE REACTOR WAS IN COLD SHUTDOWN. PRIMARY _CONTAINMENT WAS. NOT . REQUIRED *

                                                                                                     . I SAFETY-TYPE OF DEVIATION                 EVENT OF POTENTIAL        TECH SPEC                  NON-REPORTABLE                  ANNUAL          RELATED REPORTABLE OCCUR~ENCE                   -PUBLIC INTEREST         VIOLATION                       OCCURRENCE               REPORTING       WR ISSUED D          14 DAY D 10CFR21                                                                                      YES {!]*      YES ~
 . [!] 30          DAY ~~6~'~2~~10N                D                    D                                   D                 NO  D          NO   D
  . REPORTABLE OCCURRENCE                       ACTION ITEM NO.               PROMPT ON-SITE NOTIFICATION NUMBER
  -                                                                            R. H.            RAGAN                              l/7l81                    ..

lGCK- 80-02/031.-0 Tl TLE DATE TIME TITLE DATE TIME

- 24-HOUR NRC NOTIFICATION PROMPT OFF-SiTE NOTIFICATION DTPH F. A. PALMER 1/7/81 4:54 . REGION I I I DATE TIME Tl TLE DATE TIME DTCi'.1 REGION I I I & DOL CATE TIME Tl TLE DATE TIME - RESPONSIBLE COMPANY OFFICER INFORMED OF IOCFR21 TIME CONDITIONS AND THEIR REPORT TO NRC Tl TLE DATE REVIEW AND COMPLETED JOHN WUJCIGA .. l/.6/8L. OPERATING ENGlN~ER

• DATE ACCEPTANCE BY STATION REVIEW AS REQUIRED D'ATE RESOLUTION APPROVED AND AUTHORIZED FOR DISTRIBUTION}}