ML20064F641
| ML20064F641 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/07/1994 |
| From: | Sieber J DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9403150379 | |
| Download: ML20064F641 (3) | |
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Deaver Valley Power Station Shippingport PA 15077 6 JOHN D SIEBER (412) 393-525$
Senior Vg,a Piesident and Milrch 7, 1994 Fax H12) 643-8069 Chief Nuclear Officer Nuclear Power Diosion U.
S.
Nuclear Regulatory Commission Attn:
Document Control Desk Washington, DC 20555
Subject:
Beaver Valley Power Station, Unit No. 2 Docket No. 50-412, License No. NPF-73 Status of Outage Related Regulatory Issues On December 7,
- 1993, Beaver Valley Unit 2 completed its fourth refueling outage (2R4).
This letter provides notification of completion of certain modifications which were implemented to address regulatory issues.
Attached for your information is a status of those modifications.
If you have any questions concerning this letter, please contact Nelson Tonet at (412) 393-5210.
Sincerely, i
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D.
Sieber Attachment cc:
Mr.
L.
W.
Rossbach, Sr. Resident Inspector Mr. T. T. Martin, NRC Region I Administrator Mr.
G.
E.
Edison, Project Manager Mr. M.
L.
Bowling (VEPCO)
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- 4W Beaver Valley Unit 2 (BV-2)
Fourth Refueling Outage (2R4)
Status of Outage Related Regulatory Issues 1.
Subject:
Turbine Driven Auxiliary Feedwater Pump Steam Supply Line Drain Modification
Reference:
NRC Information Notice No. 86-14:
"PWR Auxiliary Feedwater Pump Turbine Control Problems,"
dated March 10, 1986 Action:
DCP-2000 installed the steam supply line drain modification for the
' turbine driven auxiliary feedwater pump.
Status:
Complete (Monitoring for effectiveness will continue) 0 2.
Subject:
125 VDC Switchboard 2-1 'and 2-2 Non-Safety Related Breakers Coordination
References:
NRC Inspection 50-334/.~1-80 and 50-412/91-80 (EDSFI 91-80-01 and 02 Safety Related Concerns) Part 2 of violation; inadequate corrective _ action to address lack of 125 VDC circuit breaker coordination per-calculation E-62 Letter to NRC, dated 5/8/92 Action:
DCP-2028 was initiated to resolve the 125 VDC breaker coordination problem.- The DCP was implemented during 2R4 and operationally accepted 10/21/93.
Status:
Complete 3.
Subject:
Rearrangement of Air Supply Lines to 2RCS-PCV 455A and B Actuators
Reference:
10 CFR 21 (Fisher 91-1)
Action:
Minor DCP-1933,
" Rearrangement of Instrument Lines-2RCS-PCV 455A B"
was completed and operationally accepted 11/05/93.
Status:
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Beaver Valley Unit 2 (BV-2)
Fourth Refueling Outage (2R4)
Status of Outage Related Regulatory Issues (Continued) 4.
Subject:
BV-2 Auxiliary Feedwater Water Hammer Events Resolution
Reference:
Routine Resident Inspection 50-412/92-20 Action:
DCP-2002 modified the feedwater system check valves (FWE-42A B,
43A & B, 44A & B) to minimize seat'and bonnet leakage and installed temporary instrumentation on the feedwater system to verify the effectiveness of the check valve modifications and assess any additional transient loadings.
The DCP was operationally accepted during the week of 11/01/93.
Status:
Complete (Monitoring for effectiveness will continue) 5.
Subject:
Safety Injection (SI) Input to Start the Steam Driven Auxiliary Feedwater Pump
Reference:
Telecon 2/12/93 between NRR and DLC)
Action:
Minor DCP-2025 installed the SI start input to the Steam Driven Auxiliary Feedwater Pump.
Status:
Complete 1
6.
Subject:
Periodic Testing of Unit-2 AMSAC Including a
j Functional Test of tht Time Delays and Set Points.
l
Reference:
NRC Inspection Report 93-13 Notice of Deviation Action:
Minor DCP 2050 modified the AMSAC timer during 2R4.
The AMSAC circuitry was successfully tested.
Status:
Complete j
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