ML18347A852

License Event Report 1980-020-00 Re Misaligned Control Rod

ML18347A852
Person / Time
Site:	Palisades
Issue date:	07/29/1980
From:	Hoffman D Consumers Power Co
To:	James Keppler NRC/RGN-III
References
LER 1980-020-00
Download: ML18347A852 (2)

Text

consumers Power company General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 "(517) 788-0650 July 29, 1980 Mr James G Keppler Office of Inspection and Enforcement Region III U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 -LICENSE DPR-20 -PALISADES PLAUT -LICENSEE EVENT RE?ORT 80-020 -MISALIGNED CONTROL ROD

• On the reverse side is Licensee Event Report 80-020 which is reportable under Technical Specification 6.9.2.B.2; however, 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> notification was made under Technical Specification S-5.1. David P Hoffman Nuclear Licensing Adrr1inistrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector

-Palisades rz_ \ \9'00' j\Jl v PALISADES PLANT NRC FORM366 17*771 U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I I(!) IPLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI

-I II [iliJ I MJ I I PJA IL I ll@ o I 01-1 o 10 Io I 01 o I -lo Io !@lb 1111 11 !1 I©! l I© 7 e II LICENSEE CODE ,.. 'ls LICENSE NUMBER :Z5 26 LICENSE TYPE JO 57 ciT &S CON'T [TI!]

15 I 01 010 I 215 15 K!)f O I 711 1118 10(!:)Io17 f 2 I 2!8 Io I@ 7 8 60 61 DOCKET NUMBER 68 69 EVENT DATE 7* 75 REPORT DATE 110 EVENT DESCRIPTION AND PROBABLE CONSEQUENCES

(,O'l [[I!J I Following control rod manipula'!&ions during normal power operation, f.IID I CRDM No 39 drove in approx 39 inches. As a result. the rad was []'JI] I misaligned

from the remaining rods in its group for about 5 minutes . J []]]J I Immedia:te action consisted o:f halting rod inward motion, manual

[TI:[] I the CRDM "down" contractors, and pulling* rod to its required position.

Reportable per TS S-5.l and 3.J.0.4c.

Similar event occurred on July 24. f]]2J

[fil] 1 1980, but did not result in, lllisaligned rod *.. ' 8 9 :SYSTEM COQ.{ CAUSE CAUSE COMI'. VALVi. I . 80 [ill] 7 8 IR l.l:SI@ 9 10 CODE SUBCOOE COMPONEr.rf COOE SUBCODE SUBCODE L!J@ l!J@ Le IR ID IR Iv IE...J@ tz._j@) LzJ@ a. .LERIRQ CEV£NTYEAR

\::.I REPORT I 8 I 0 I NUMBER 21 22 11 12 13 18 111 20 SEOUENTiJ!.L*

OCCURflEHCE REl'ORT REl'ORT NO. CODE TYPE I I lo 12 I o I f/I I a I 1 I rLJ 1=.J 23 2* 26 27 28 29 30 31 ACTION FUTURE EFFECT SHUTDOWN . ATTACHMENT NPRD-4 PRIME COMP. TAKEN ACTION ON PLANT METHOD HOURS @ SUBMITTED FORMliUB.

SUPPLIER LI@l!J@ l.!J@ I o I o I C4 o I Ll!.J@ W@) IILJ@ 3J 3" 35 36 37 co 41 *2 G REVISION NO. IQJ 32 COMP'ONENT MANUFACT\,IRER tc 14 t 9 lo i@ ... 47 CAUSE DESCRIPTION AND CORREC"flVE ACTIONS @ £.Im I CRDM control re1ay armatures and up/do-wn.

contractor' interlock

• were dirl..L.-J 1JJJJ I causing them to stick. Contactors and interlock for CRDM 39 have been _J cleaned and lubricated.

Cleaning and lubrication of remaining contactors CTIIJ

________

is in progress.

A PM to perform this :function on a refueling cycle is J £I1!] I being developed. , 8 9 FACILl'TY

'3Q\ STATUS 1' l'OWER OTHER STATUS [ill] l!J@ 10 I 3 I O !@)._I _N_A ___ .-' e 9 10 12 13 ... ACTIVITY CONTENT t:::\ RELEASED DF RELEASE AM.:lUNT OF ACTIVITY EE] W@ N A I 7 . B II 10 11 .... i'EFISONNEL EXl'OSURES Q IO t;:;\ DISCOVERY DISCOVERY DESCRIPTION G

• M LOCATION OF RELEASE NA O lllUMBEP.

DESCRl"10N ETIJ I I 0 I 1 e 9 11 12 13 110 P'ERSONNEL llllJURIES I:::\ lllUMSER

• DESCRIPTION\!!!

Efil I d olo

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--= 7 B 9 ti 12 LOSS oc:*oR DAMAGE TO FACILITY TYPE DESCRIPTION Ii:::/ [2lij l.!.J@ . . N A 7 8 9 10 PUBLICITY C\ NRC USE ONLY *

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I I I I I I I I I I I I I . 7 I II 10 68 69 llO