ML17219A666

Special Rept:On 870528,city Water Tank 1B Declared Inoperable for More than 7 Days in Violation of Tech Specs to Perform Necessary Maint.Caused by Necessary Repairs to Protective Coating Sys to Prevent Further Corrosion

ML17219A666
Person / Time
Site:	Saint Lucie
Issue date:	07/01/1987
From:	Woody C FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
L-87-278, NUDOCS 8707060691
Download: ML17219A666 (3)

Text

REGUL*TO>INFORMATION D ISTR I BUT lON>STEM (R I DS 3 ACCESSION NBR:8707060691 DOC.DATE: 87/07/01 NOTARIZED:

NO FACIL: 50-335 St.Lucie Plant>Unit 1>Florida Poeer 8c Light Co.50-389 St.Luci e Plant.Unit 2>Florida Poeer Zc Light Co.AUTH.NAME AUTHOR AFF ILI ATION NOODY>C~O.Florida Poojer Zc Light Co.RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)DOCKET 05000335 05000389

SUBJECT:

Special rept: on 870528>cit eater tank 1B declared inoperable for more that 7days limited alloUjed by Tech Specs to preform necessary maint.Caused by sandblasting oW tank inner shell Zc evaluated corrosion p itting.DISTRIBUTION CODE: IE2ZD CQPIES RECEIVED: LTR (ENCL Q SIZE: TITLE: 50.73 Licensee Event Report (LER>>Incident Rpt>etc.NOTFS: RECIPIENT ID CODE/NAME PD2-2 LA TOUR IGNY>E 1NTERNAL: ACRS MICHEl SON AEQD/DOA AEOD/DSP/TPAB NRR/DEST/ADE NRR/DEST/CEB NRR/DEST/ICSB NRR/DEST/MTB NRR/DEBT/RSB NRR/DLPG/HFB NRR/DOEA/EAB NRR/DREP/RPB NRR/PMAS/PTSB RES DEP Y GI RES/DE/EI B COPIES LTTR ENCL 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 RECIP IENT ID CODE/NAME PD2-2 PD'CRS MOELLER AEOD/DSP/ROAB DEDRO NRR/DEST/ADS NRR/DEST/ELB NRR/DEST/MEB NRR/DEST/PSB NRR/DEST/SGB NRR/DLPG/GAB NRR/DREP/RAB N RARMA LRB REG F 02 RE>J RGN2 FILE 01 COPIES LTTR ENCL 1 1 2 2 2 2 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 EXTERNAL: EGe<r GROH.M LPDR NSIC HARRIS>J 5 5 1 1 H ST LOBBY NARD NRC PDR NSIC NAYS>G 1 1 1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 44 ENCL 42\+5 5%-e>55~')5 5)555)'5'~')~))8 5-=*-~

cJJ P,<14000, JUNO BEACH, FL 334IOB FLORIDA POWER 8 LIGHT COMPANY god)l98t L-87-278 IO CFR 50.4 U.S.Nuclear Regulatory Commission Attn: Document Control Desk'ashington, D.C.2055S Gentlemen:

Re: St.Lucie Units I and 2 Docket Nos.50-335 and 50-389 Special Report Date of Event: May 28, l987 IB Cit Water Stora e Tank The attached Special Report is being transmitted pursuant to the requirements of Technical Specifications 3.7.I I.I and 6.9.2.The report provides notification that the IB City.Water Storage tank was out of service for greater than seven (7)days and the actions taken to restore the tank to service.Should there.be any questions on this information, please contact us.Very truly yours, C.O.Woo Group Vice President Nuclear Energy COW/GRM/gp Attachment cc: Dr.J.Nelson Grace, Re'gional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, St.Lucie Plant 87070bob'yl 5000335 87070>PDR ADOCK 0 PDR 8/6>~GRMS/0 I 7/I PEOPLE...SERVING PEOPLE c-NRC SPECIAL REPORT IB CITY WATER STORAGE TANK INOPERABLE FOR MAINTENANCE AS ALLOWED BY TECHNICAL SPECIFICATIONS At 235I hours on May 28, l987, the IA City Water Storage Tank (CWST)was declared inoperable as part of scheduled repairs to be performed on the tank.Recent inspections of the IA and IB CWST performed on January 3, l987, revealed that corrosion pitting was taking place on the interior shell of the tanks.The protective coating is beginning to deteriorate and small areas are exposed to the environment.

This resulted in the pitting seen in the tanks.Even though the extent of the pitting was not of immediate concern for the structural integrity of the tanks, it was recommended to repair the tank protective coating system to prevent further corrosion.

The IA CWST repairs were completed on January 27, l 987.A Special Report was previously submitted by FPL letter L-87-6 I, dated February 9, I 987.In accordance with the St.Lucie Unit I and Unit 2 Technical Specification 3.7.I I.I, this Special Report is being submitted to notify the NRC that the IB CWST has been inoperable for greater than the allowed seven (7)days.The following is the plan to restore the equipment to operable status.The reason for declaring the equipment inoperable was the maintenance repair on the IB CWST.The tank inner shell has been sandblasted and the corrosion pitting has been evaluated by FPL Engineering and Chicago Bridge Incorporated.

Weld repairs are being performed and the protective coating will be applied as soon as weld repairs are completed.

The expected completion date of the tank repair is July l5, I 987.The I A CWST has remained operable to supply the redundant fire suppression system while the IB CWST is undergoing repairs.GR M5/0 I 7/2