ML17349A382

Special Rept:On 920824,Hurricane Andrew Struck Plant W/Both Units in Mode 4.Sample Line from Plant Vent Stack to SPING-4 Severed.Caused by Extreme Weather Due to Hurricane.Plant Change/Mod 92-104 Issued to Repair Sample Line

ML17349A382
Person / Time
Site:	Turkey Point
Issue date:	09/07/1992
From:	Plunkett T FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
L-92-261, NUDOCS 9209210134
Download: ML17349A382 (3)

Text

ACCELERATED DTRIBUTION DEMON+RATION SYSTEM REGULATORY INFORMATION DISTRIBUTION'SYSTEM (RIDS)

ACCESSION NBR:9209210134 DOC.DATE: 92/09/07 NOTARIZED: NO DOCKET 'g FACIL:5Ci250 Turkey Point Plant', Unit 3, Florida Power and Light C 05000250 50-251 Turkey Point Plant, Unit 4, Florida Power and Light C 05000251 AUTH. NAME AUTHOR AFFILIATION PLUNKETT,T.F. Florida Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Special rept:on 920824,Hurricane Andrew struck plant w/both units in Mode 4.Sample line from plant vent stack to SPING-4 severed. Caused by extreme weather due to hurricane. Plant Change/Mod 92-104 issued to repair sample line. 0 DZSTRZBUTZON CODE: ZE22D COPZES RECEZVED:LTR I ENCL SZZE:

TITLE: 50.73/50.9 L'icensee Event Report (LER), lnciden Rpt, etc.

NOTES:NRR RAGHAVANgL 05000250 i NRR RAGHAVANiL. 05000251 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD2-2 LA . 1 1 PD2-2 PD 1 1 AULUCK,R 1 1 INTERNAL: ACNW 2 2 AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 AEOD/ROAB/DSP 2 2 NRR/DET/EMEB 7E 1 1 NRR/DLPQ/LHFB10 1' NRR/DLPQ/LPEB10 1 1 NRR/DOEA/OEAB 1 1 NRR/DREP/PRPB11 2 2 NRR/DST/SELB 8D 1 1 NRR/DST/SICB8H3 1' RR PLB8D1 1 1 NRR/DST/SRXB 8E 1 1 REG FILE 02 1 1 RES/DER/EIB 1 1 RGN2 LE 01 1 1 C,

EXTERNAL EG&G BRYCE i J H 2 2 E ST LOBBY WARD 1 1 NRC PDR 1 1 NSIC MURPHY,G.A 1 1 NSIC POOREiW. 1 l. NUDOCS FULL TXT 1 1 NOTES: 1, 1 NOTE TO ALL RIDS RECIPIENTS:

PLEASE HELP US TO REDUCE O'ASTE! COh'TACT THE DOCUMENT CONTROL DESK.

ROOM Pl-S7 (EXT. 504-2065) TO ELIMINATE YOUR NAM" FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 30 ENCL 30

P.O. Box 029100, Miami, FL, 33102-9100 SEP 07 1992 L-92-261 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Gentlemen:

Re: Turkey Point Units 3 and 4 Docket Nos. 50-250 and 50-251 Special Report Plant Vent Exhaust High Range Noble Gas Effluent Monitor Ino erable for Greater Than Seven Da s In accordance with Technical Specification 6.9.2, the attached Special Report is provided for information.

Should there be any questions on this information, please contact us ~

Very truly yours, y<(l:)nY T. F. Plunkett h . c~ .;:;;:

Vice President Turkey Point Nuclear TFP/GS attachment cc: Stewart D. Ebneter, Regional Administrator, Region II; USNRC Senior Resident Inspector, USNRC, Turkey Point Plant

'7209210134 920907 ADOCK 05000250 PDR S PDR g. Yi

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'SPECIAL REPORT

~Pur osei This Special Report is being filed in accordance with the re-quirements of Technical Specification 3.3.3.3, Table 3.3-5, Action 34, which requires the submission of a Special Report pursuant to TS 6.9.2 Noble Gas Monitor if the Special Particulate, Iodine, and (SPING-4) is not returned to operable status within 7 days.

Event and Action Taken:

On August 24, 1992, at approximately 0430, Hurricane Andrew struck Turkey Point. At that time, both units were in Mode 4.

The winds due to the hurricane resulted in severing of the sample line from the Plant Vent Stack to the SPING-4. The deficiency was identified on August 26, during a walkdown to assess damage to plant systems due to the hurricane.

Technical Specification (TS) 3.3.3.3, Tabl'e 3.3-5, Item 19.a requires the High Range-Noble Gas Monitor in the Plant Vent Exhaust to be operable at all times. (This function is performed by the SPING-4). Upon the SPING-4 becoming inoperable, TS Action 34 'requires initiation of the preplanned alternate method of monitoring the appropriate parameter, within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. This was initiated on August 26, 1992, in accordance with procedure NC-22C, "SPING and DAM Monitor Channel Check." This procedure requires the installation of a sampling pump and iodine and particulate filter holders. The filters are then analyzed weekly, with noble gas activity being analyzed each 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

Cause of the Ino erabilit The cause of the SPING-4 becoming inoperable was the extreme weather due to Hurricane Andrew.

Plans and Schedule for Restorin the S stem to 0 erable Status Plant Change/Modification (PCM)92-104 has been issued. This PCM addresses repair of the SPING-4 sample line, along with other repairs. The PCM will be implemented prior to either Turkey Point Unit s entry into mode 2. Upon implementation of this PCM, the SPING-4 will be returned to operability.