RNP-RA/15-0102, Pressurizer Power Operated Relief Valve Position Indication
| ML15315A004 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 11/11/2015 |
| From: | Hoffman D Duke Energy Progress |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RNP-RA/15-0102 | |
| Download: ML15315A004 (2) | |
Text
(-, ~~~~GY.
PROGRESS Serial: RNP-RA/15-0102 NOV 11 2015 A TIN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 H.B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261/RENEWED LICENSE NO. DPR-23 David S. Hoffman H. 8. Robinson Steam Electric Plant Unit 2 Dir - Nuc Org Effectiveness Duke Energy Progress 3581 West Entrance Roao Hartsville, SC 29550 0 843 857 5239 F: 843 857 1319 Da,id.H11/fman@dukt-tnu gy.c11m 10 CFR 50.36 PRESSURIZER POWER OPERATED RELIEF VALVE POSITION INDICATION
Dear Sir/Madam:
By letter dated September 1, 2015 (Reference 1) Duke Energy Progress, Inc. submitted notification to the NRC in accordance with the H. B. Robinson Steam Electric Plant, Unit No. 2, (HBRSEP2) Technical Specifications that the station pressurizer power operated relief valve (PORV) position indication was inoperable based on 1 O CFR 21 notice by the position indication limit switch manufacturer. This letter indicated that these pressurizer PORV position indication components would be repaired or replaced and tested prior to restart from the next refueling outage, currently scheduled to begin on February 10, 2017, or during the first outage of sufficient duration.
Since this notification, a maintenance outage has been planned to replace a low-pressure turbine blade. Although this outage will be of sufficient duration to effect repairs to the pressurizer PORV position indication, planned plant conditions will prohibit these repairs.
Specifically, the plant will be maintained in Mode 4, which will preserve an environment at the location of the PORV limit switches (at the top of the Pressurizer Cubicle) that is hazardous to worker safety. Consequently, the station will return to Mode 1 at the completion of this outage with the pressurizer PORV position indication inoperable. The position indication components will be repaired and/or replaced at the next refueling outage, or outage of sufficient duration and plant configuration to effect these repairs.
There are no new regulatory commitments made in this letter.
If you have any questions concerning this matter, please contact Richard Hightower, Manager -
Nuclear Regulatory Affairs at (843) 857-1329.
Sincerely, David S. Hoffman Director - Nuc Org Effectiveness DSH/jmw
U. S. Nuclear Regulatory Commission Attachment to Serial: RNP-RA/15-0102 Page 2 of 2 cc: Regional Administrator, NRC, Region II Ms. Martha C. Barillas, NRC Project Manager, NRA Mr. Dennis Galvin, NRC Project Manager, NRA NRC Resident Inspector, HBRSEP2
REFERENCES:
- 1. Letter from W. A. Hightower (Duke Energy Progress) to U.S. Nuclear Regulatory Commission (USNRC) (Serial: RNP-RA/15-0077), Technical Specifications (TS) Section 5.6.6, Post Accident Monitoring (PAM) Instrumentation Report, 14-Day Report for the lnoperability of Pressurizer Power Operated Relief Valves Position Indication, dated September 1, 2015, ADAMS Accession No. ML152448280.
(-, ~~~~GY.
PROGRESS Serial: RNP-RA/15-0102 NOV 11 2015 A TIN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 H.B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261/RENEWED LICENSE NO. DPR-23 David S. Hoffman H. 8. Robinson Steam Electric Plant Unit 2 Dir - Nuc Org Effectiveness Duke Energy Progress 3581 West Entrance Roao Hartsville, SC 29550 0 843 857 5239 F: 843 857 1319 Da,id.H11/fman@dukt-tnu gy.c11m 10 CFR 50.36 PRESSURIZER POWER OPERATED RELIEF VALVE POSITION INDICATION
Dear Sir/Madam:
By letter dated September 1, 2015 (Reference 1) Duke Energy Progress, Inc. submitted notification to the NRC in accordance with the H. B. Robinson Steam Electric Plant, Unit No. 2, (HBRSEP2) Technical Specifications that the station pressurizer power operated relief valve (PORV) position indication was inoperable based on 1 O CFR 21 notice by the position indication limit switch manufacturer. This letter indicated that these pressurizer PORV position indication components would be repaired or replaced and tested prior to restart from the next refueling outage, currently scheduled to begin on February 10, 2017, or during the first outage of sufficient duration.
Since this notification, a maintenance outage has been planned to replace a low-pressure turbine blade. Although this outage will be of sufficient duration to effect repairs to the pressurizer PORV position indication, planned plant conditions will prohibit these repairs.
Specifically, the plant will be maintained in Mode 4, which will preserve an environment at the location of the PORV limit switches (at the top of the Pressurizer Cubicle) that is hazardous to worker safety. Consequently, the station will return to Mode 1 at the completion of this outage with the pressurizer PORV position indication inoperable. The position indication components will be repaired and/or replaced at the next refueling outage, or outage of sufficient duration and plant configuration to effect these repairs.
There are no new regulatory commitments made in this letter.
If you have any questions concerning this matter, please contact Richard Hightower, Manager -
Nuclear Regulatory Affairs at (843) 857-1329.
Sincerely, David S. Hoffman Director - Nuc Org Effectiveness DSH/jmw
U. S. Nuclear Regulatory Commission Attachment to Serial: RNP-RA/15-0102 Page 2 of 2 cc: Regional Administrator, NRC, Region II Ms. Martha C. Barillas, NRC Project Manager, NRA Mr. Dennis Galvin, NRC Project Manager, NRA NRC Resident Inspector, HBRSEP2
REFERENCES:
- 1. Letter from W. A. Hightower (Duke Energy Progress) to U.S. Nuclear Regulatory Commission (USNRC) (Serial: RNP-RA/15-0077), Technical Specifications (TS) Section 5.6.6, Post Accident Monitoring (PAM) Instrumentation Report, 14-Day Report for the lnoperability of Pressurizer Power Operated Relief Valves Position Indication, dated September 1, 2015, ADAMS Accession No. ML152448280.