ML17348A412

Responds to NRC Bulletin 90-001, Loss of Fill-Oil in Transmitters Mfg by Rosemount.

ML17348A412
Person / Time
Site:	Turkey Point
Issue date:	07/18/1990
From:	Bohlke W FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-90 IEB-90-001, IEB-90-1, L-90-266, NUDOCS 9007230374
Download: ML17348A412 (11)

Text

ACCELERATED DTRIBUTION DEMONS/RATION SYSTEM)REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)ACCESSION NBR:9007230374 DOC.DATE: 90/07/18 NOTARIZED:

YES DOCKET g FACIL:50-250 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 BOHLKE,W.H.

Florida Power&Light Co.RECIP.NAME

.RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Responds to NRC Bulletin 90-001,"Loss of Fill-Oil in Transmitters Mfg by Rosemount." DISTRIBUTION CODE: IE39D COP1ES RECEIVED:LTR ENCL SIZE: TITLE: NRC Bulletin 90-001, Loss of Fill Oil in Transmitters Mfg by Rosemoun NOTES: RECIPIENT ID CODE/NAME PD2-2 LA EDISON,G INTERNAL NRR LE 1 N NRR K&lSEY J 02 GB2 FILE 01 EXTERNAL: LPDR NSIC COPIES LTTR ENCL 1 0 1 1'1 2 2 1 1 1 1 1 1 1 1 RECIPIENT ID CODE/NAME PD2-2 PD NRR PERCH,R NRR/DRIS/RVIB RES FARMER,W NRC PDR COPIES LTTR ENCL 1 1 1 1 1 1 1 1 1 1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE!CONTACT THE DOCUMENT CONTROL DESK, ROOti!P l-37 (EXT.20079)TO ELliVIINATE YOUR NAME FROM DISI'RIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 14 ENCL 13 P.O.Box 14000, Juno Beach, FL 33408.0420 pygmy, 1 8,1990 L-90-266 10CFR 50.54(f)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 NRC Bulletin 90-01 Loss of Fill-Oil in Transmitters Manufactured b Rosemount NRC Bulletin 90-01,"Loss of Fill-Oil in Transmitters Manufactured by Rosemount", issued March 9, 1990, requested that licensees take appropriate corrective actions for Model 1153 Series B, Model 1153 Series D and Model 1154 transmitters manufactured by Rosemount that may be leaking fill-oil.In accordance with the bulletin, Florida Power and Light provides the attached response relative to the Turkey Point Plant.Should there be any questions concerning this response, please contact us.Very truly yours, W.H.Bohlke Vice President Nuclear Engineering and Licensing WHB/OIH cc: Stewart D.Ebneter, Regional Administrator, Region II, USNRC Senior Resident Inspector, USNRC, Turkey Point Plant r0072:0=74 50C>7i:=: pDR AriocK 05000250 C<eric'nlr an FPL Group company~E3$r/r

STATE OF FLORIDA))COUNTY OF PALM BEACH)st W.H.Bohlke being first duly sworn, deposes and says: That he is Vice President Nuclear En ineerin and Licensin of Florida Power 6 Light Company, the Licensee herein;That.he has executed the foregoing document;that the statements made in this document are true and correct to the best of his knowledge, information and belief, and that he is authorized to execute the document on behalf of said Licensee.W.H.Bohlke Subscribed and sworn to before me this day of NOTARY PUBLIC, in and for the County of Palm Beach, State of Florida NOIARY.RVSLlg 5PJE OR FLORIDA AT LAP~" My commission expires PLY.coMMIssION FxpIItFs DFc 2s I993 ATTACHMENT FLOR1DA POWER AND LIGHT TURKEY POINT UNITS 3 AND 4 NRC BULLETIN 90-01 LOSS OF FILL-OZL IN TRANSMITTERS MANUFACTURED BY ROSEMOUNT Florida.Power and Light provides the following information relative to Turkey Point Units 3 and 4 in response to NRC Bulletin 90-01: Re ortin Re irement 1.a Provide, within 120 days after receipt of this bulletin, a response that: a)Confirms that Items 1,2,3,4, and 5 of Requested Actions for Operating Reactors have been completed.

FPL Res onse: Florida Power and Light confirms that the following actions have been completed:

All Rosemount transmitters models 1153 Series B, and 1153 Series D manufactured prior to July 11, 1989 currently used in either safety-related systems or systems installed in accordance with 10CFR50.62 have been identified.

There are no.model 1154 transmitters installed at Turkey Point Units 3.and 4.No transmitters were identified as being manufactured by Rosemount but supplied by a different vendor.~2 Ten transmitters from manufacturing lots having a high failure fraction due to loss of fill-oil have been identified.

Six of these ten transmitters are used in the reactor protection or , engineered safety features actuation systems.Replacement of the transmitter or its sensor cell for each of the ten transmitters identified will be completed by the end of the dual unit outage currently scheduled to start on November 15, 1990.

3~Plant transmitter calibration records have been reviewed.There are no transmitters which have exhibited symptoms of loss of fill-oil that are currently installed in safety-related systems or systems installed in accordance with 10CFR50.62.

4~An enhanced surveillance program is in place for all Rosemount Model 1153 Series B, and 1153 Series D transmitters currently used in either safety-related systems or systems installed in accordance with 10CFR50.62 manufactured prior to July ll, 1989.5.A basis for continued operation has been issued in accordance with Bulletin 90-01 guidelines.

Re ortin Re irement l.b 1.Provide, within 120 days after receipt of this bulletin, a response that: b)Identifies the indicated manufacturer; the model number;the syst: em the transmitter was utilized in;the approximate amount of time at pressure;the corrective actions taken;and the disposition of Rosemount Model 1153 Series B, Model 1153 Series D, and Model 1154 transmitters that are believed to have exhibited symptoms indicative of loss of fill-'oil or have been confirmed to have experienced a loss of fill-oil.This should include Model 1153 Series B, Model 1153 Series D and Model 1154 transmitters manufactured after July 11, 1989.FPL Res onse: Table 1 of this Attachment provides the requested information.

Re ortin Re irement, l.c Provide, within 120 days after receipt of this bulletin, a response that: c)Identifies the system in which the Model 1153 Series B, 1153 Series D, and Model 1154 transmitters from the manufacturing lots that have been identified by Rosemount as having a high failure fraction due to loss of fill-oil are utilized and provides a schedule for replacement of these transmitters which are in use in the reactor protection or engineered safety features actuation systems.4Q FPL Res onse: Table 2 of this Attachment provides the requested information.

Re ortin Re irement 2 2.Model 1153 Series B, Model 1153 Series D, and Model 1154 transmitters that, subsequent to providing the response required by Item 1 above, exhibit symptoms of loss of fill-oil or are confirmed to have experienced a loss of fill-oil should be reviewed for reportability under existing NRC regulations.

If determined not to be reportable, addressees are requested to document and maintain, in accordance with existing plant procedures, information consistent with that requested in Item 1)above for each transmitter identified.

FPL Res onse: Transmitters which exhibit symptoms of loss of fill-oil or are confirmed to have experienced a loss of fill-oil will be reviewed for reportability under existing NRC regulations.

If determined not to be reportable, information such as the model number;the system the transmitter was utilized in;the approximate amount of time at pressure;the corrective actions taken;and the disposition of the transmitter will be documented and maintained.

Table 1 Reporting Requirement l.b TRANSMITTERS SUSPECTED TO HAVE EXPERIENCED A LOSS OF FILL-OIL Transmitter Manufacturer Transmitter Model Number~Set em Time at Pressure Corrective Actions Dis osition of Transmitter Rosemount 1153DB5, Serial Number 413674 Unit 4, Auxiliary Feedwater.System Flow 80-120 hours The transmitter has been removed from service.The transmitter was sent to Rosemount for further analysis.No confirmation of failure mode as of yet.Rosemount Rosemount 1153DD5, Serial Unit 4, Steam Number 397801 Generator Level 1153DD6, Serial Unit 3, Steam Number 414651 Flow 39 months 14 months The transmitter has been removed from service.The transmitter has been removed from service.The transmitter was sent to Rosemount for further analysis.No confirmation of failure mode as of yet.The transmitter is awaiting shipment to Rosemount.

Rosemount 1153DB5, Serial Number 413672 Unit 4, Auxiliary Feedwater System Flow 80 hours9.259259e-4 days <br />0.0222 hours <br />1.322751e-4 weeks <br />3.044e-5 months <br /> The transmitter has been removed from service.The transmitter is awaiting shipment to Rosemount.

Table 2 Reporting Recpxirement 1.c TRANSMITTERS FROM THE MANUFACTURING LOTS IDENTIFIED BY ROSEMOUNT AS HAVING A HIGH FAILURE FRACTION Transmitter Transmitter

~S stem Manufacturer Model Number Corrective Actions Rosemount 406294 Unit 3, RCS Plow Loop B The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.Rosemount Rosemount Rosemount Rosemount Rosemount Rosemount 406297 405797 406291 406302 406303 406304 Unit 3, RCS Flow Loop C Unit 4, RCS Flow Loop C Unit 3, RCS Flow-Loop A Unit 3, SG A Level Unit 3, SG B Level Unit 3, SG C Level The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.

Rosemount 410759 Unit 4, RCP C Shaft Seal Delta P The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.Rosemount Rosemount 406284 406287 Unit 3, SG A Feedwater Flow Unit 3, SG C Feedwater Flow The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.The sensor cell or complete transmitter will be replaced by the end of the dual unit outage currently scheduled to start in November 15, 1990.