ML20141E617

Special Rept:On 851218,RCIC Sys Actuated & Injected Water Into Reactor Vessel During Startup Test Condition 6.Reactor Water Level Dropped & RCIC Quick Started Manually to Control Reactor Level.No Corrective Action Taken

ML20141E617
Person / Time
Site:	Limerick
Issue date:	02/12/1986
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
References
NUDOCS 8604220227
Download: ML20141E617 (3)

Text

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. . l PHILADELPHIA ELECTRIC COMPANY 23O1 M ARKET STREET P.O. BOX 8699 PHILADELPHI A, PA.19101 (2151841-4000 February 12, 1986 Docket No. 50-352 Dr. Thomas E. Murley, Administrator U. S. Nuclear Regulatory Commission Region I 631 Park Avenue King of Prussia, PA 19406

SUBJECT:

Special Report - Reactor Core Isolation Cooling (RCIC) System Actuations and Injections - Limerick Generating Station - Unit 1

REFERENCE:

Technical Speci fications 3.7. 3.b and 6.9. 2

Dear Dr. Murley:

This Special Report is being submitted pursuant to the requirements of Limerick Generating Station Technical Speci fications 3.7. 3.b and 6.9. 2. Technical Specification 3.7. 3.b s tates, "In the event the RCIC system is actuated and injects water into the reactor coolant system, a Special Report shall be prepared and submitted to the Commission pursuant to Specification 6.9.2 within 90 days describing the circumstances l of the actuation and the total accumulated actuation cycles to date". Technical Specification 6.9.2 states, "Special Reports shall be submitted to the Regional Administrator of the Regional Of fice of the NRC within the time period specified for each report".

1 This report concerns the occurrence of one Reactor Core Isolation Cooling (RCIC) system actuation and injection into the reactor coolant system during Startup Test Condition 6 of Unit No. 1 on December 18, 1985.

During performance of Startup Test Procedure STP-25.3 " Full MSIV Isolation", the RCIC system injected water into the reactor vessel. As a result of the full main steam isolation valve closure, reactor water level dropped but did not reach the RCIC ,

initiation setpoint. RCIC was quick started manually to control reactor level. )

t 8604220227 860212 Y PDR ADOCK 05000352 g y PDR g S j g,

Dr. Thomno E. Murley Fsbrunry 12, 1986 Page 2 RCIC flow was adjusted in response to reactor water level.

At one point RCIC flow was manually diverted to full flow test and then back to the reactor. Initial reactor parameters for this injection were as follows:

Reactor power 3018 MWt Reactor pressure 993 psig Moderator temperature 525 degrees-F.

This is the fifteenth RCIC actuation and injection to date.

Since RCIC operated as designed to control level, no corrective action is to be taken.

Should you require additional information, please do not hesitate to contact us.

Very truly yours,

\

~

J W. T. Ullrich Supe rintendent Nuclear Generation Division cc: E. M. Kelly, Senior Resident Inspector See Attached Service List

f' cc: Troy B. Conner, Jr., Esq.

Ann _P. Hodgdon, Esq.

Mr. Frank R. Romano Mr. Robert L. Anthony Ms. Phyllis Zitzer Charles W. Elliott,-Esq. .

Barry M. Hartman, Esq.

Mr. Thomas Gerusky Director, Penna. Emergency Management Agency Angus Love, Esq.

David Wersan, Esq.

Robert J. Sugarman, Esq.

Kathryn S. Lewis, Esq.

Spence W. Perry, Esq.

Jay M. Gutierrez, Esq.

Atomic Safety & Licensing Appeal Board Atomic Safety & Licensing Board Panel g

Docket & Service Section (3 Copies)

E. M. Kelly Timothy R. S. Campbell February 4, 1986 l

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