L-2014-248, Technical Specification Special Report Radiation Monitor Inoperable Greater than 72 Hours

Technical Specification Special Report Radiation Monitor Inoperable Greater than 72 Hours

ML14224A016
Person / Time
Site:	Saint Lucie
Issue date:	07/28/2014
From:	Catron S Florida Power & Light Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-2014-248
Download: ML14224A016 (2)

Text

July 28, 2014 L-2014-248 FPL. 10 CFR 50.36 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D. C. 20555 Re: St. Lucie Unit 2 Docket No. 50-389 Date of Event: July, 16, 2014 Technical Specification Special Report Radiation Monitor Inoperable Greater Than 72 Hours The attached special report is being submitted pursuant to the requirements of St. Lucie Unit 2 Technical Specification 3.3.3.1, Action b, Table 3.3-6, Action 27, and Technical Specification 6.9.2. This report provides notification that the Steam Generator Blowdown Treatment Facility Building Exhaust Radiation Monitor RM-45-1 was inoperable for greater than 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.

Alternate means of radiation monitoring were implemented in accordance with the Technical Specification ACTION statement.

Please contact Don Cecchett at 772.467.7155 if there are any questions on this information.

Sincerely, ASteve atron Lice ingManager St. Lucie Plant SC/dlc

Attachment:

Steam Generator Blowdown Treatment Facility Building Exhaust Radiation Monitor RM-45-1 Inoperable Greater Than 72 Hours (1 page) cc: USNRC Regional Administrator, Region II USNRC Senior Resident Inspector, St. Lucie Plant Florida Power & Light Company 6501 S. Ocean Drive, Jensen Beach, FL 34957

St. Lucie Unit 2 L-2014-248 Docket No. 50-3 89 Attachment Page 1 of 1 I. TITLE Steam Generator Blowdown Treatment Facility Building Exhaust Radiation Monitor RM-45-1 Inoperable Greater Than 72 Hours II. EVENT DESCRIPTION On July 16, 2014, St. Lucie Unit 2 was in Mode I at 100% power. The Steam Generator Blowdown Treatment Facility Building Exhaust Radiation Monitor RM-45-1 lost power due to a preplanned outage on the Motor Control Center (MCC 1B9) which supplies the monitor's power.

The limiting condition for operation (LCO) for TS 3.3.3.1, Action b, Table 3.3-6, Action 27, states that:

"With the number of OPERABLE Channels less than required by the Minimum Channels OPERABLE requirement, either restore the inoperable Channel(s) to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, or:

1) Initiate the preplanned alternate method of monitoring the appropriate parameter(s), and

2) Prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within 14 days following the event outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status."

III. CAUSE OF THE EVENT The loss of power to the radiation monitor was due to a preplanned outage to complete permanent repairs on the monitor's power feed 480V MCC 1B9 which sustained damage on December 12, 2014.

IV. ACTIONS TAKEN Short Term:

Alternate monitoring was implemented in accordance with TS 3.3.3.1, Action b; Table 3.3-6, Action 27.

Long Term:

The permanent power source will be repaired and returned to service.

V. SCHEDULE FOR RESTORING SYSTEM The estimate for returning MCC 1B9 to service is August 8, 2014 due to upgrading the MCC. If the Steam Generator Blowdown Treatment Facility Building Exhaust Radiation Monitor RM-45-1 is not restored with its permanent power by the August 15, 2014, an update will be provided.