NL-11-2322, Special Report, Inoperable Radiation Monitor R-29B

Special Report, Inoperable Radiation Monitor R-29B

ML113260341
Person / Time
Site:	Farley
Issue date:	11/22/2011
From:	Lynch T Southern Co, Southern Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
NL-11-2322 SR-11-001-00
Download: ML113260341 (4)

Text

Southern Nuclear Operating Company. Inc.

Post OIfice Drawer 470 Ashford , Alabama 3631 2 SOUTHERNA COMPANY Ellergy to Salle Your World ""

November 22, 2011 Docket No.: 50-364 NL-11-2322 U. S. Nuclear Regulatory Commission ATIN: Document Control Desk Washington, D. C. 20555-0001 Joseph M. Farley Nuclear Plant - Unit 2 Special Report 2011 -001-00, Inoperable Radiation Monitor R-29B Ladies and Gentlemen:

In accordance with the requirements of Technical Requirements Manual (TRM).

TR 13.3.4, the enclosed Special Report No. 2011-001-00 (Unit 2) is submitted.

This letter contains no NRC commitments. If you have any questions, please contact Doug McKinney at (205) 992-5982.

Sincerely,

?~

T. A. Lynch Vice President - Farley TAlJWDO

Enclosure:

Special Report 2011-001-00

U. S. Nuclear Regulatory Commission NL-11-2322 Page 2 cc: Southern Nuclear Operatina Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Bost, Chief Nuclear Officer Ms. P. M. Marino, Vice President - Engineering RTYPE: CFA04.054 U. S. Nuclear Regulatory Commission Mr. V. M. McCree, Regional Administrator Mr. V. Sreenivas, NRR Project Manager - Farley Mr. E. L. Crowe, Senior Resident Inspector - Farley

Joseph M. Farley Nuclear Plant, Unit 2 Special Report 2011-001-00, Inoperable Radiation Monitor R-29B Enclosure Special Report 2011-001-00

Joseph M. Farley Nuclear Plant, Unit 2 Special Report 2011-001-00, Inoperable Radiation Monitor R-29B Enclosure Special Report 2011-001-00 This Special Report is being submitted due to the Unit 2 radiation monitor R-29B (Plant Vent Stack) not being restored to operable status within the time required by Technical Requirements Manual (TRM) TR 13.3.4. The TRM requires the monitor to be restored to operable status within 7 days or submit a Special Report within the next 14 days following the event.

The Required Action Statement was entered at 01: 18 on November 5, 2011 when radiation monitor R-29B was discovered inoperable during a routine surveillance check by a plant operator. A Mandatory Limiting Condition for Operation (LCO) was written requiring restoration under work order (SNC344675) to operable status by November 12, 2011 at 01: 18. The work was scheduled improperly and R-29B was not restored to operable status within 7 days. A Condition Report was generated and causal determination (CAR 192866) assigned to identify the cause and take corrective actions to prevent recurrence.

Maintenance subsequently found Channel 7 (Mid Range Noble Gas) of R-29B reading "Out for Maintenance" because of a computer micro processing issue.

The computer was reprogrammed and indication restored to normal. Operations performed their surveillance check satisfactory and restored R-29B to operable status on November 17, 2011 at 15:27.