ML20010A928

LER 81-109/03L-0:on 810705,air temp-Delta T Meteorological Monitoring Strip Chart Recorder Found Not Functioning Properly.Caused by Inkwell Shaft Binding W/Inkwell Bushing Causing Pointer to Chatter & Remain at One Point

ML20010A928
Person / Time
Site:	McGuire
Issue date:	08/04/1981
From:	Nardoci P DUKE POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010A927	List: ML20010A926 ML20010A928
References
LER-81-109-03L, LER-81-109-3L, NUDOCS 8108130122
Download: ML20010A928 (1)

Text

-

NRC 7ORM 364 U. S. NUCLEAR RECULATORY COMM.sSION (7 77)

LICENSEE EVENT REPORT EXHIBIT A CONTROL SLCCX: l l l l l l i .Q l (PLEASE PRINT OR TYPE ALL REQUIRED INFORMADON) o i

, . . l N l uca Cl S.. Mjcoo, GlSlll@s.0l q -l0 l0Ucl 0 io l 01 0l- l 0 l Ol@

~si ....a 2.

4 m

l 1l 1l 1111@l.,cara@

uci . 7,n s.

l l core T o ' l' "c' LLJ@l 0151 o I o I 013 l 6 l 9 l@l0 l 7 l 0 l 5l 8 l 1 l@l 018 l 0 l 418 l1 l@

EVENT DESCR PRON ANO PROS A E C NSE ENCES o 2 lWhile in Mode 4. performance of a daily routine checklist revealed that the I o 2 lair temperature - Delta T meteorological monitoring strip chart reccrder was [

@ t _no t functioning properly, and was subsequently declared inoperable. This I o s Iviolates T.S. 3.3.3.4 which is reportable per T.S. 6.9.1.13(b). Since there 1 A I un, n nn radioactive caseous waste releases made while the recorder was inoper-1 o ,

Iable, in addition to operation of the redundant data logger and magnetic tape ;

ioisitrecorder, the health and safety of the public were not af fected. I Sc'I[a" #

• TSEE su'?c'se coucoa.s=T caos n fo'oe su"'coEe l'o T el I al Bl @ L,Ej @ lB l@ lI l NIS IT l Rl Ul@ @@ [Zj

. io i ia 2 1 i. m (VENTytAn S tQuf MT1.L mepont Afvisi 88 mEP.AT NQ. OCCu.n C CE et NCE Tvre a'=

O ,,Lgnino u 18 I l l 2i 22 I-l 22 1110191 24 2.

1.,-d 2

101 31 23 LIJ L--!

No.

LoJ

2. 20 3i 22 t CTICN P a T ut e.oups 22 5.Ia Won .. SUP*u

~

uAmus lAj@l.Zj@ l_Zjh I:aZJ@ l O!0l0 lu l [EJ@ [E.j@ [L,j@

man 22 24 .s 2,

.o ei 2 u lXl9l9l91@

o .,

CAUSE DESCMtPTION ANO CORRECflVE ACTicNS h m IThe strip chart recorder (Tracer-Westronics, Model M11E) failed due to the  ;

ITTT 1 I shaf t of the inkwheel assembly (part No. A27672) binding with the inkwell i li121lbushine (nart No. A27671). causine the nointer to chatter and remain at one I i 3 l point. The shaft and bushing were replaced, and the ambient temperature and i U, _L4_]. .

1 Delta T instrumentation loops were enlibrated per procedure. t T %PonfR oTHERSTATUS ossco RY o'ScovtRv oEsemipT10N l'i Ti'l L x_j@ l 01010 l@l unan 6 l l 81@[ Daily routir.e checklist l

. .;n ,,,, gl ,,,,, >= is a = *

. .uou~T o, .C ,,,T toc . . ,,u ,@

8 .<, .. ... <. .LZJ @ LZJOl N/A

@ "l l N/A l

.. . . R . . ..sS .,

• uu. rvn 81 ol OIO l@Lzj@lo.sca ,no,@N/A

' ' ' l

' etaso ..'tiuv'l<:

=uu.a. ossenieno=@

i e I 0l010 l@[ N/A i, i2 l

'M*'"es'c"n7,n'En'''@

8,. L. zJ@l i.

n/^

l en NRC USE ONLY 2 o

@lo'sN carrtif5 l llllllllllgll NauE e,, rep 4REn _ Phillip B. Nardoci , son E; (704) 373-7432 PDR ADOCK8108130122 S 05000369 810804~

PDR-_ _ _____ __