ML20084U278

LER BFRO-50-260/7615:on 761013,offgas post-treament Monitor 2-RM-90-265 Suction & Discharge Sample Lines Found Reversed. Caused by Installation Error

ML20084U278
Person / Time
Site:	Browns Ferry
Issue date:	11/11/1976
From:	Fox H TENNESSEE VALLEY AUTHORITY
To:	Moseley N NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
LER-BFRO-50-260-761, NUDOCS 8306280481
Download: ML20084U278 (2)

Text

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. .. LICENSEE EVENT REPORT l l l SE PR.NT ALL REQUtRED INFORM ATION)

CONTROL BLOCK:l l l 1 6

TYPE NIME LCENSE NUMBER

] ln89l L l Bl Rl Fl ,14 2\ l0 l0 l-l0 l 0 l 0 l 0 l 0 l-l 0l 0l l4l1 l1 l1l1l 30 l0 l3 l 31 32 15 25 26 EVENT OATE REPORT DATE TYPE OU DOCKET NUMBER CATECORY l l l l l l 01 CON'T l  ! l [L_j l Ll l 0l 5l 0l-l0 l2 l6 l000l [1 l 0 l 1 l 1 l 7 l 674l 69 l

75 80 7 8 57 58 59 60 61 EVENT DESCRIPTION l

DE l During startup testing the unit 2 of fgas post-treattnent monitor (2-RM-90-265) suction 80 7 89 Since startup the monitor has l o l and discharge sample lines were found to be reversed. 80 7 89 Q ! been indicating the activity upstream of the charcoal beds rather than downstream. 83

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CODE l Il Nl Sl T I R l Ul @ lZ l9 l9 l9 47l d48 7 89 10 11 12 17 ' 43 44 ,

CAUSE DESCR:PTION l

@ l Installation error.

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80 7 89  !

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OSCOVERY OtSCOVERY OESCRIPTON STA s  % POWER OTHER CTATUS 1

d l0l5l9l12 13l NA l 44 d45 l Unusual Monitor Response Noted 46 80 l

7 8 9 10 LOCATON OF RELEASE RELE SEO OF EL ASE AMOUNT OF ACTMTV NA l M

7 8 J

9 Wl 10 11 NA 44 l

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60 PERSONNEL EXPOSURES NUVBER TTFE DESCRIPTION l

DE l 0l Ol0 l 7 89 11 Wl 12 13 NA 80 PERSONNEL INJUPES NLMBEA DESCA PTION NA l Q l 0l 0l 0]

7 89 11 l

'2 60 OFFSITE CONSECUENCES

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@l 7 89 80 LOSS OR OAMAGE TO FAC!LITY TYFE DESCAtPTON l

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NA 0306280481 761111 PU8tCTY PDR ADOCK 05000260 NA S PDR l Ql 7 89 60 ACDtitCNAL FAC' ORS been verified correct. }

3 l Installation of similar lines on units 1 and 3 has SG

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DE I E0 7 89 PHCNE:

NAME- GPO 981 667

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/ #e. TENNESSEE VALLEY AUTHORITY 04, . g % COPY CHATTANOOGA. TENNESScE 37401 k 'trc49[ -

November 11, 1976 b

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_Ts Mr. Norman C. Moseley, Director U.S. Nuclear Regulatory Consission N.

NOV 101976* El Office of Inspection and Enforcement "

Region II ~ ';

230 Peachtree Street, NW., 8th Floor  % %",$7 ,

AtJonta, Georgia 30303 F48uSW V Dear Mr. Moseley #

• TENNESSEE VALLEY AUTHORITY - BROWNS FERRY NUCLEAR PLANT UNI DOCKET NO. 50-260 - FACILITY OPERATING LICENSE DPR REPORTA OCCURRENCE REPORT BFRO-50-260/7615 The enclosed repo~rt is to provide details concerning the unit 2 offgas p;st-treatment monitor (2-RM-90-265) suction and discharge sample lines that vore found to be reversed during startup testing. This report is submitted Section 6. in accordance with Brovna Ferry Technien1 Specifientions This event occurred on Browns Ferry Nuclear Plant unit 2.

, Very truly yours, i

TENNESSEE VALLEY AUTHORITY i

H. S. Fox Director of Power Production Enclosure (3)

CC (Enclocure)t /

Director (3) /

Office of Management Information and Program Control U.S. Nuclear Regulatory Commission Washington, D.C. 20555

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Offico of Inspection and Enforcement 4

U.S. Nuclear Regulatory Corzaission

-Washf.ngton, D.C.

20555

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