ML18142B881

LER 1975-008-00 for R. E. Ginna, Degradation of Charcoal Filter Iodine Removal Efficiency

ML18142B881
Person / Time
Site:	Ginna
Issue date:	04/17/1975
From:	White L Rochester Gas & Electric Corp
To:	O'Reilly J NRC/IE, NRC Region 1
References
LER 1975-008-00
Download: ML18142B881 (7)

Text

>REPORT OF ABNORMAL OCCURRENCE AND/OR INCIDENZ NRC DISTRIBUTION FOR PART 60 DOCKEd MATERIAL (TEMPORARY FORM)

CONTROL NO: 4414 FILE: INCIDENZ REPORT FILE FROM: R est r Gas and Electr DATE OF DOC DATE' EC'D LT'R'WX RPT OTHE R Corp Rochester, N.Y, L.D ~ White 4>>17-75. 4-22-75 XXXX TO: ORIG CC OTHER SENT AEC PDR Mr James P. O'Reilly I-signed SENT LOCAL PDR CLASS UNCLASS PROPINFO INPUT NO CYS REC'D DOCKET NO:

40 50-244 DESCRIPTION: ENCLOSURES:

Ltr trans the following: Abnormal Occurrence 8'75-08 on 4-8-75 concernipg e degradation of charcoal filter iodine removal.

efficiency ~ ~ .~~~

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W/ Copies W/ Copies W/ Copies W/ Copies CLARK (L) STOLZ (L) DICKER (E) LEAR (L)

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W/ Copies Wopies W/ Copies W/ Copies INTFRNAL DISTRIBUTION

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SKOVHOLT (L) ~ROSS DICKER . SHEPPARD (L) E. COUPE GOLLER (L) (Ltr) KNIGHTON SLATER PETERSON

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YOUNG BLOOD H. SMITH (L)

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~1 TIC (ABERNATHY) (1)(2)(10)

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4i!r5ie.l"',il Pii'li7iFiPii ROCHESTER GAS AND ELECTRIC CORPORATlON o 89 EAST AVENUE, ROCHESTER, N.Y. 14649 LEON D. WHITE. JR. T E I. E P H 0 N E VICE PIIESIOENT *IIEA COO E TIa 5 4 6-27 00 Fila Gg>>

a~ %'4"- " April 17, 1975

~ojOI~

Mr. James P. O'Reilly, Director 9 ~g Q ~OEw l2 U. S. Nuclear Regulatory Commission Cl IPT'c $

Office of Inspection and Enforcement Region I, 631 Park Avenue King of Prussia, Pennsylvania 19406 0'"'ubject:

Abnormal Occurrence 75-08, Degradation of charcoal filter iodine removal efficiency R. E. Ginna Nuclear Power Plant, Unit No. 1 Docket No. 50-244

Dear Mr. O'Reilly:

In accordance with Technical Specifications, Article 6. 6.2a, the attached report of Abnormal Occurrence 75-08 is hereby submitted. Two additional copies of this letter and the attachment are en'closed..

I Very truly yours, L. D. White, Jr.

Attachment cc: Mr. Donald F. Knuth (40)

+PXTTZ U5HEC 8'

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~ 5 lp

CONTROL BLOCK:

~ LICENSEE EVENT REPC

[PLEASE PRINT ALL REQUIRED INFORMATION)

LICENSEE LICENSE EVENT NAME LICENSE NUMBER TYPE TYPE Jog NY R EG1 0 0 00 00 0 0 0 4 1 1 1 1 ~01 7 89 14 15 26 30 31 REPORT REPORT CATEGORY TYPE SOURCE DOCKET NUMBER EVENT DATE REPORT DATE

~01 GQN'T ~MI T L 0 5 0 0 2 44 04 0 8 75 04 1'7 75 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION

[oO~J During refueling shutdown the post accident filters charcoal samples showed "A" filter 7 8 9 80 QQ3] charcoal molecular iodine removal efficienc of 99. 4%, while for "B", above the 7 89 80

~04 acceptance criteria of 99.9%. Methyl iodide removal efficiencies for "A" and "B" were 8 995.9% and 96.7% respectively, and both systems were operable. This is the first such80

~05 occurrence with this s stem. "A" filter will be char ed with charcoal meetin acce t- '

Bance criteria per Technical Specifications before next startup. (Abnormal Occurrence 1006 50-244 75-08.

7 8 9 PBME 80 SYSTEM CAUSE COMPONENT COMPONENT CODE CODE COMPONENT CODE SUPPUER MANUFACTURER VIOLATION I007I ~SC ~E F I L T E R N A 2 2 0 7 8 9 10 11 12 17 43 44 47 48 CAUSE DESCRIPTION

[QDB] The system is isolated from air flow exce t for testin, so reduced molecular iodine 7 8 9 80 Qpg removal efficiency may be due to aging of the charcoal. The filters are AAP-105P-842835, 7 8 9 80

~10 installed in 1969. A Technical Specification change will be considered to replace the 7 89 FACILITY METHOD OF ont . un er txona Factors -

80 STATUS  % POWER OTHER STATUS DISCOVERY DISCOVERY DESCRIPTION

~oo o

'2 NA b molecular iodine removal testing 7 8 9 10 13 44 45 46 80 FORM OF AMOUNT OF ACTIVITY LOCATION OF RELEASE NA NA 7 8 9 10 11 44 45 80 PERSONNEL EXPOSURES NUMBER TYPE DESCRIPTION

[<is) ~0o o E NA 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER DESCRIPTION

~<< ~oo o NA 7 89 11 12 80 OFFSITE CONSEQUENCES NA 7 8 9 80 LOSS OR DAMAGE TO FACILITY TYPE DESCRIPTION

~16 P

~ 7 89 10 80 PUBLICITY um 7 89 80 ADDITIONAL FACTORS CG18 Cause Description (cont'd.) surveillance acceptance criteria of 99.9% molecular 80 iodine removal efficiency to 90.0% methyl iodide removal efficiency.

7 89 80 Charles E. Platt PHDNE, 7 1 6/546-2 700, ext. 29 1-250 GPO 81II . 66T<<

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ROCHEXTERGAXAHS Ef ECYRIC. CORPORATION::>>- GF EAST AVEHUE,. RGC'flFSXEQ;,A.Y 1'464K TtLCt'es Obf.

aeca-coat.sic 946 2200 Gi~ Station, LprLX 9,. 1975.

Hr Dames; P Rei11y Mrector.

U S . Nueleam Regulato~:Camai;saxon: .

Region 1.

631 ParR Ama...

Mng. oZ Prussia Pa X9006:-

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Su&ject= ASnoansXi accurrerrce. f75-0E.=~ %re; "d'ost'ceid'ent: Charcoal:,

fil'tom. bank testee% 9%.47.'kfi,cLeni fox: maXeculax iadine'b.-

snxytim The TachnicaX: Speci ffcatfaa 35mht .Xs 9%97.

Seaz'r O'RciZX~:

f Thea. s .ta caxrEXrrn; my phone=.ca1.1. to. Hr Paul XeXXog. this, morning te"report AbnoexaaI. Occurrence ~3%5'-08; at Ginna Mation On FuxcTa 26 ...X975'e A. & E'Pant Acumen@'Charcoal ffXtee'systems" ware:.

tested. fox.Zmon..filter efficiency and a snmpie af'harcaaX. vm .removed.

&cm each: hank and ansXyzed:.for moIecuXm trodi:ne reuada1:. ef Q.agency.

~ Paragraph 4%.2.3E of the Technical. SpecifXcaCXons- ca1l fox ae efx=ciency of. 99'L mcxXecuXar iodine..remove'". Xafoancd'rat'fficatioxr of th'; results.

shee 'he. "A".'iltee bank. to}.be 99A7. eff2cxanh fox ecrIecuLar iadine; rataomX Thc. Ekevn" anK xo&na test uexe perfaenccL. by.. Hueless Consulting. Service Ine oE Columbus. EiT~re. Furtl'ver: testiq, Xor @ethyl iaaMne. absarption eHxciency miXX. ba done f

Vexy true yours Charles: F PXaCE.

Superintend'ant CEP."CI xc' G, J., Ssrax'thout: . RGGE Corp.

P, Oaf.tePr RGM Corp O'. P Sweet EQ&K Corp

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