Morning Report for February 9, 1999
Headquarters Daily Report FEBRUARY 09, 1999 *************************************************************************** REPORT NEGATIVE NO INPUT ATTACHED INPUT RECEIVED RECEIVED HEADQUARTERS X REGION I X REGION II X REGION III X REGION IV X PRIORITY ATTENTION REQUIRED MORNING REPORT - REGION III FEB. 09, 1999 Licensee/Facility: Notification: Northern States Power Co. MR Number: 3-99-0006 Prairie Island 1 2 Date: 02/06/99 Welch,Minnesota SRI Via PC Dockets: 50-282,50-306 PWR/W-2-LP,PWR/W-2-LP Subject: PLANNED UNIT 2 OUTAGE REPLACE CABLE AND REPAIR MANWAY COVERS Discussion: On 2/6/99, the inspectors observed a planned shutdown of Unit 2 to replace a faulty cable to the 2N44 nuclear instrument and to repair steam leaks on the 22 steam generator manways. Subsequent to placing the unit in Hot Shutdown, an improperly implemented Temporary Change Notice (TCN) to the Unit 2 Shutdown Procedure (2C1.3) led to the reactor operator withdrawing the shutdown banks prior to performing the T.S. required surveillance procedure 2035D, "Reactor Protection Logic Testing." This surveillance is required to be performed following a shutdown, prior to making the control rod drive system capable of rod withdrawal. After the licensee discovered that this had occurred, the shutdown banks were inserted, the reactor trip breakers were opened, and the SP 2035D was performed prior to reclosing the reactor trip breakers. On 2/7/99, the NI cable and steam generator manway repairs were completed successfully. The inspectors observed the Unit 2 reactor startup and no other discrepancies were noted. Contact: Bruce Burgess (630)829-9629 _
Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021