ML031330653
| ML031330653 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 05/01/2003 |
| From: | Salamon G Public Service Enterprise Group |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| LRN-03-0100 | |
| Download: ML031330653 (2) | |
Text
PSEG Nuclear LLC P.O. Box 236, Hancocks Bridge, New Jersey 08038-0236 MAY 0 1 2003 LRN-03-01 00 0 PSEG A7uclear LLC United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 SPECIAL REPORT 272102-008 WASTE GAS OXYGEN ANALYZER INOPERABLE GREATER THAN 30 DAYS SALEM GENERATING STATION UNIT NO. 1 FACILITY OPERATING LICENSE DPR-70 DOCKET NO. 50-272 This special report is being submitted pursuant to the requirements Salem Unit 1 Technical Specification (TS) 3.3.3.9, which requires one waste gas oxygen monitoring channel to be operable when the waste gas system is in service.
Action statement 3.3.3.9.b requires that action be taken to restore an inoperable oxygen analyzer channel within 30 days, and to submit a Special Report if unsuccessful.
On October 10, 2002 the Salem Unit 1 waste gas analyzer (WGA) was removed from service for corrective maintenance in response to a recurring RECORDER TROUBLE alarm. The WGA chart recorder includes a microprocessor whose functions include automatic sequencing of sample points for analysis of hydrogen and oxygen concentration. The Salem Unit 1 WGA has the capability to sample waste gas at Salem Unit 2. Troubleshooting revealed failure of a recorder input board and a recorder output board. After the boards were replaced then technicians observed a problem with sample point sequencing.
The Unit 1 WGA would not sample Unit 2 points as programmed. Also, the Unit 1 WGA would intermittently sample Unit 2 points when the selector switch was set to skip Unit 2 sample points.
Additional corrective maintenance included procurement of a replacement processor board. The procurement and receipt of the circuit board took approximately three weeks, after which troubleshooting and repair activities resumed. The recorder processor's software was manually reconfigured to achieve satisfactory operation.
Upon completion of corrective maintenance and functional testing, the Salem Unit 1 WGA was restored to operable status on November 22, 2002.
95-2168 REV. 7/99
Document Control Desk MAY 0 1 2003 LRN-03-01 00 There are no safety consequences associated with the WGA being inoperable for greater than 30 days. The function of the waste gas oxygen analyzer is to monitor for potentially hazardous concentrations of oxygen in waste gas.
Alternate capability to sample and analyze waste gas oxygen concentration remained available to meet the requirements of Technical Specification 3.3.3.9.
Should there be any questions regarding this matter please contact Brian Thomas at 856-339-2022.
Sincerely, G. Salamon Nuclear Safety and Licensing Manager C
Administrator-Region I United States Nuclear Regulatory Commission 474 Allendale Road King of Prussia, PA 19406