ML091871018: Difference between revisions

From kanterella
Jump to navigation Jump to search
(Created page by program invented by StriderTol)
 
(Created page by program invented by StriderTol)
Line 1: Line 1:
{{Adams
#REDIRECT [[L-MT-09-059, Monticello, Supplement to License Amendment Request: Revision to Required Actions for Specification 3.5.1, Emergency Core Cooling System]]
| number = ML091871018
| issue date = 07/02/2009
| title = Monticello, Supplement to License Amendment Request: Revision to Required Actions for Specification 3.5.1, Emergency Core Cooling System
| author name = O'Connor T J
| author affiliation = Northern States Power Co, Xcel Energy
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000263
| license number = DPR-022
| contact person =
| case reference number = L-MT-09-059, TAC MD9170
| document type = Letter
| page count = 4
| project = TAC:MD9170
| stage = Supplement
}}
 
=Text=
{{#Wiki_filter:July 2, 2009 L-MT-09-059 10 CFR 50.90 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555 Monticello Nuclear Generating Plant Docket 50-263 Renewed Facility Operating License No.
DPR-22 Supplement to License Amendment Request: Revision to Required Actions for Specification 3.5.1, Emergencv Core Cooling System (TAC No. MD9170)
 
==Reference:==
: 1) Letter NMC to NRC, "License Amendment Request: Revision to Required Actions for Specification 3.5.1, Emergency Core Cooling System," (L-MT-08-034), dated June 26, 2008. On June 26,2008, the Nuclear Management Company, (NMC) LLC a predecessor license holder to the Northern States Power Company - a Minnesota corporation (NSPM),(') submitted a license amendment request (Reference I) to revise the Required Actions for Technical Specification 3.5.1, "Emergency Core Cooling System (ECCS) and Reactor Core Isolation Cooling (RCIC) System, ECCS - Operating," within the Monticello Nuclear Generating Plant Technical Specifications to more accurately reflect the assumptions of the Loss of Coolant Accident analysis. Reference 1 provided a draft marked-up copy of the Technical Specification (TS) pages to the U.S. .Nuclear Regulatory Commission (NRC) indicating the proposed changes.
Commonly, final re-typed TS pages are not requested from a licensee by the NRC until near amendment issuance to ensure any intervening amendments are correctly reflected within the TS pages. During re-typing it was identified that the Logical Connector "OR" (above Required Action E.3) was not precisely placed and should have been left-justified in the Required Actions column for Condition E. Also, it was identified that it was potentially confusing as to whether a specified 72 hour Completion Time applied to both Required Actions E.2 and E.3, or only to Required Action E.2. To correct this concern a 72 hour Completion Time has been added in the Completion Time column next to Required Action E.3. Note that these TS changes do not impact the technical content of this amendment request. These TS changes have been discussed with the NRC Project Manager. 1. NSPM is incorporated as a wholly owned subsidiary of Xcel Energy, Inc. Transfer of operating authority from the NMC to NSPM occurred on September 15, 2008. 2807 West County Road 75 o Monticello, Minnesota 55362-9637 Telephone:
763.295.51 51 e Fax: 763.295.1 454 Document Control Desk L-MT-09-059 Page 2 of 2 Enclosure 1 provides a revised copy of this TS page, which includes the above discussed TS changes. The NSPM has reviewed the No Significant Hazards Consideration determination provided in Reference 1 for this LAR and determined that it is still applicable.
The MNGP Plant Operations Review Committee has reviewed the proposed TS changes herein. In accordance with 10 CFR 50.91, a copy of this change to the application, with the enclosure, is being provided to the designated Minnesota Official.
Summaw of Commitments No new commitments or changes to any existing commitments are proposed by this letter. y of perjury that the foregoing is true and correct. Ilo Nuclear Generating Plant States Power Company - Minnesota Enclosure cc: Administrator, Region Ill, USNRC Project Manager, Monticello, USNRC Resident Inspector, Monticello, USNRC Minnesota Department of Commerce ENCLOSURE
's MONTlCELLO NUCLEAR GENERBTING PLANT REVISED TECHNICAL SPEClFlCATlON PAGE FOR LICENSE AMENDMENT REQUEST: REVISION TO REQUIRED ACTIONS FOR SPECIFICATION 3.5.1, EMERGENCY CORE COOLING SYSTEM (1 page follows)
ECCS - Operating 3.5.1 C. One LPCl pump in both LPCl subsystems inoperable.
ACTIONS (continued)
C.1 Restore one LPCl pump to OPERABLE status.
CONDITION 7 days D. Two LPCI subsystems inoperable for reasons other than Condition C or H. REQUIRED ACTION D.l Restore one LPCl subsystem to OPERABLE status. COMPLETION TIME 72 hours E. One Core Spray subsystem inoperable.
AND - One LPCl subsystem inoperable.
E.l Restore Core Spray subsystem to OPERABLE status. E.2 Restore LPCl subsystem to OPERABLE status.
72 hours 72 hours OR - One or two LPCl I pump(s) inoperable.
p Restore LPCI pump(.) to 1 OPERABLE status.
F. Both Core Spray subsystems inoperable.
F.l Restore one Core Spray subsystem to OPERABLE status. 72 hours G. Required Action and associated Completion Time of Condition A, B, C, D, E, or F not met. G.l Be in MODE 3. AND G.2 Be in MODE 4. 12 hours 36 hours H. Two LPCl subsystems inoperable due to open RHR intertie return line isolation valve(s).
H.l Isolate the RHR intertie line. 18 hours Monticello 3.5.1-2 Amendment No. 446,162}}

Revision as of 17:49, 9 February 2019

Redirect to:

Retrieved from "https://kanterella.com/w/index.php?title=ML091871018&oldid=1312125"