ML20151N453

Notice of Violation from Insp on 880314-25.Violation Noted: 2B Safety Injection Pump Made Inoperable by Inadvertent Shutting & Locking Manual Discharge Valve on 880305-13

ML20151N453
Person / Time
Site:	Braidwood
Issue date:	04/15/1988
From:	Greenman E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML20151N415	List: IR 05000457/1988012 ML20151N410 ML20151N453
References
50-457-88-12, NUDOCS 8804250304
Download: ML20151N453 (1)

Text

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i NOTICE OF VIOLATION Commonwealth Edison Company Docket No. 50-457 As a result of the inspection conducted on March 14 through March 25, 1988, and in accordance with 10 CFR Part 2, Appendix C - General Statement of Policy and Procedure for NRC Enforcement Actions (1987), the following violation was identified:

Technical Specification 3.5.2, "ECCS SUBSYSTEMS - Tavg 2 3500 F," states:

"Two independent Emergency Core Cooling System (ECCS) subsystems shall be OPERABLE with each subsystem comprised of:

a. One OPERABLE centrifugal charging pump,

b. One OPERABLE Safety Injection pump,

c. One OPERABLE RHR heat exchanger,

d. One OPERABLE RHR pump, and

e. An OPERABLE flow path capable of taking suction from the refueling water storage tank on a Safety Injection signal and automatic opening of the containment sump suction valves."

This specification is applicable in Modes 1, 2, and 3, and the action required with one ECCS subsystem inoperable is to restore the inoperable subsystem to operable status withirs seven days or be in at least Hot Standby (Mode 3) within the next six h(urs and in Hot Shutdown (Mode 4) within the following six hours.

Contrary to the above, while in Modes 2 and 3 the 2B Safety Injection pump was made inoperable by the inadvertent shutting and locking of the manual discharge valva (2SI89218) between 7:47 p.m. on March 5, 1988, and 5:00 p.m.

on March 13, 1988 (a period of over 7 days and 21 hours2.430556e-4 days <br />0.00583 hours <br />3.472222e-5 weeks <br />7.9905e-6 months <br />). The shut discharge valve rendered the 2B ECCS train inoperable (incapable of performing its intended function) during that time.

This is a Severity Level IV violation (Supplement I). (50-457/88012-01(DRP))

Pursuant to the provisions of 10 CFR 2.201, you are required to submit to this office within thirty days of the date of this Notice a written statement or explanation in reply, including for each violation: (1) corrective action taken and the results achieved; (2) corrective action to be taken to avoid further violations; and (3) the date when full compliance will be achieved.

Consideration may be given to extending your respoase time for good cause shown.

pg 15 GBS Dated Edward G. Greenman, Director Division of Reactor Projects 8804250304 88041-POR O

ADOCK 05000457 DCD