ENS 49992
ENS Event | |
|---|---|
16:25 Apr 2, 2014 | |
| Title | Console Key Left Unattended |
| Event Description | After performing routine maintenance and surveillance procedures, the reactor operator left the reactor control room for a rest break. During this break the reactor operator left the console key inserted and unattended in the console. Another operator came by and noticed that the key was in the console without the other reactor operator in the control room. The second reactor operator notified the reactor manager. The reactor manager immediately removed the key from the console. The reactor manager then suspended the first reactor operator's operating rights until corrective actions have been determined and implemented.
During the time the key was unattended, all control elements were fully inserted. Based upon video review, the length of time the key was unattended was 14 minutes. The relevant Technical Specification to this situation is 6.1.3 (Staffing): the minimum staffing when the reactor is operating shall be one licensed reactor operator in the control room. The licensee notified NRC NPR (Adams and Bassett).
SUMMARY: After further review the facility has determined that the 'Unattended Key Left in Console' event originally reported as a reportable occurrence was indeed not a reportable occurrence and retracts the official notice, changing the notification to a for your information only as was discussed with the facility NRC Project Manager Alexander Adams in a call following the notification. DETAILS: On April 2, 2014, after the reactor had been shutdown for an extended period due to maintenance repairs, an operator was performing surveillance / maintenance activities which required the console key to be inserted into the reactor control system. The maintenance was done with the reactor in the shutdown mode with the reactor subcritical by more than $1.00. After a portion of the maintenance was completed, the operator left the control room for a short break and did not remove the reactor key from the console before leaving the room. All control rods were fully down at the time the operator left the room and remained in that condition for 14 minutes until the key was removed from the console by the reactor manager. A review of video surveillance confirmed the reactor remained shutdown while the key was unattended. The facility does not normally leave the key unattended in the control console so the initial response was to report this event as a reportable occurrence based on the Standard English Dictionary definition of shutdown. A follow-up review of the requirements in the Technical Specification Section 6.1.3 required a licensed operator in the control room when the reactor was not 'Shutdown', with 'Shutdown' defined in Technical Specification Section 1.19 as the reactor subcritical by at least $1.00. Since the reactor was clearly shutdown based on the Technical Specification definition, the report of a reportable occurrence is hereby retracted and the notification can be interpreted as a for your information notice only. Nonetheless, the operator who left the key in the console was given retraining and review by the reactor manager prior to being allowed to resume licensed activities since his actions had come very close to a Technical Specification violation. Notified R4DO (Haire), and NRC NPR (Adams and Schoenebeck). |
| Where | |
|---|---|
| Univ Of Texas Austin, Texas (NRC Region 4) | |
| License number: | R-129 |
| Reporting | |
| Non | |
| Time - Person (Reporting Time:+17.2 h0.717 days <br />0.102 weeks <br />0.0236 months <br />) | |
| Opened: | Michael Krause 09:37 Apr 3, 2014 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Apr 29, 2014 |
| 49992 - NRC Website | |
Univ Of Texas with Non | |
WEEKMONTHYEARENS 499922014-04-02T16:25:0002 April 2014 16:25:00
[Table view]Non Console Key Left Unattended ENS 476252012-01-27T17:16:00027 January 2012 17:16:00 Non Technical Specification Violation Discovered 2014-04-02T16:25:00 | |