ENS 41043
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ENS Event | |
|---|---|
20:00 Sep 15, 2004 | |
| Title | Potential Violation Of License Condition - Operation Above Licensed Power Limit |
| Event Description | This 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Notification to the NRC Operations Center is being made per Operating License No. NPF-39, Section 2.F to report a potential violation of the requirements contained in Section 2. C of Limerick Unit 1 license.
On September 15, 2004 at 1600 Hrs. it was determined during an investigation of megawatt output differences between the two LGS Units, that LGS Unit 1 secondary plant parameters were identified as being outside of their expected range. This change occurred over several months at the rate of 0.1 %/month for a total potential error of 0.4%. This data indicates that LGS1 could possibly be above the operating license limit of 3458 MWth. Unit 1 power was reduced to 99% power to 3423 MWth as of 1618 to provide margin to licensed thermal power limit. A written report is required within 30 days in accordance with 10 CFR 50.73. The licensee has notified the NRC resident inspector. |
| Where | |
|---|---|
| Limerick Pennsylvania (NRC Region 1) | |
| Reporting | |
| Other Unspec Reqmnt | |
| LER: | 05000352/LER-2004-002 Regarding Period of Operation That Exceeded the License Maximum Power Level |
| Time - Person (Reporting Time:+16.28 h0.678 days <br />0.0969 weeks <br />0.0223 months <br />) | |
| Opened: | Jim Brittian 12:17 Sep 16, 2004 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Sep 16, 2004 |
| 41043 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (99 %) |
WEEKMONTHYEARENS 564642023-02-16T12:05:00016 February 2023 12:05:00
[Table view]Other Unspec Reqmnt, 10 CFR 50.73(a)(1), Submit an LER 60 Day Notification for an Invalid Actuation of the Emergency Service Water System ENS 417362005-05-31T14:31:00031 May 2005 14:31:00 Other Unspec Reqmnt Operation at Greater than Licensed Power Lever (106% Rated) Due to Recirc Pump Motor Generator Set Fault ENS 414152005-02-17T05:00:00017 February 2005 05:00:00 Other Unspec Reqmnt Missing Calibration Source ENS 413462005-01-18T17:55:00018 January 2005 17:55:00 Other Unspec Reqmnt 24-Hour Condition of License Report for Potential Non-Compliance of the Fire Protection Program ENS 410432004-09-15T20:00:00015 September 2004 20:00:00 Other Unspec Reqmnt Potential Violation of License Condition - Operation Above Licensed Power Limit 2023-02-16T12:05:00 | |
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