ML20205R502
| ML20205R502 | |
| Person / Time | |
|---|---|
| Site: | Mcguire |
| Issue date: | 08/08/1985 |
| From: | Tucker H DUKE POWER CO. |
| To: | Grace J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| NUDOCS 8606050391 | |
| Download: ML20205R502 (3) | |
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August 8, 1985 Dr. J. Nelson Grace, Regional Administrator i
U. S. Nuclear Regulatory Commission Region Il U
101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30323 3
'.3 Subj ect: McGuire Nuclear Station, Unit 2
'g Docket No. 50-370[le1)-Supplement 6 Startup Report (Cy
Dear Dr. Grace:
Pursuant to Technical Specifications 6.9.1.1, 6.9.1.2, and 6.9.1.3, attached are two copies (per NRC Regulatory Guide 10.1) of supplement 6 to the startup report for McGuire Nuclear Station, Unit 2/ Cycle 1.
Durir.g the previous 90 days, additional testing on McGuire Unit 2 was perforced per TP/2/A/1200/27A, Reinspection of Piping Dynamic Response Following Reactor Trip. Attachment 1 provides a description of this work. As indicated in the attachment, this procedure remains open pending resolution of a problem with one hanger.
Future supplements will track the progress of this work.
In addition. TP/2/A/2650/25, PD Pump Control of Pressurizer Level at 30% Power will be deleted since all the requirements of FSAR Section 14.0 Table 14.1.4-1 page 19 of 35, Pressurizer Pressure and Level Control System Test, were met in a previously completed test.
Consequently, only one Unit 2/ Cycle 1 startup test remains uncompleted.
The startup test program is still not complete since not all of the power escalation testing has been perforned. Accordingly, pursuant to T. S. 6.9.1.3, additional supplementary reports will be submitted at least every 3 months until completion of all power escalation testing. The next supplemental report keeping you apprised of the progress of this testing will be filed by November 1, 1985.
Please advise if there are any questions concerning this supplement.
Very truly yours,
~
. -. /A fh Hal B. Tucker PBN/hrp Attachment 0
1 8606050391 850808 DR ADOCK 0500 0
f Dr. J. Nelson Grace, Regional Administrator August 8, 1985 Page 2 cc: Document Control Desk (36)
U. S. Nuclear Regulatory Commission Washington, D. C. 2055 Mr. Darl Hood Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Mr. W. T. Orders NRC Resident Inspector McGuire Nuclear Station McGuire Nuclear Station - Unit 2 Startup Report Addendum August 8, 1985 TP/2/A/1200/27A - Reinspection of Piping Dynamic Response Follcwing Reactor Trip On May 16, 1985, McGuire Unit 2 tripped from approximately 96% power. On May 17, 1985 Maintenance personnel reinspected the hangers that were out-standing discrepancies. These had been repaired at the refueling outage.
All discrepancies were resolved with the exception of hanger 2CFH44 on the Feedwater System. This hanger again was in need of mechanical repair and failed to pass inspection. Repair of this hanger cannot be done on line.
Design Engineering has been asked to resolve the problem with a redesign of the hanger.
This procedure will remain open until this problem is resolved.
TP/2/A/2650/25 - PD Pump Control of Pressurizer Level at 30% Power As indicated in the previous Unit 2/ Cycle 1 Startup Addenduu h. 5 dated May 3, 1985, major modifications to the positive displacement (PD) pump and associated piping were planned for some future date.
Modifications to the Unit 2 PD P.tmp have not been made; however, modifications to the Unit 1 PD Pump have been made and some testing of the redesign hes been done.
Once the Unit 1 System is performing satisfactorily, the Unit 2 system will be modified accordingly.
TP/2/A/2650/25, PD Pump Control of Pressurizer Level at 30% Power, was written to use the PD Pump to check the same controls as previously checked '
by the Centrifugal Charging Pumps in TP/2/A/2600/ll, Pressurizer Pressure and Level Control System Test. The stations position is that all the requirements of FSAR Section 14.0 Table 14.1.4-1 Page 19 of 35, Pressurizer Pressure and Level Control System Test, were met in TP/2/A 2600/11, Pressurizer Pressure and Level Control System Test. Therefore, TP/2/A/2650/25 will be deleted and this test is considered closed.