ML20059G758

Special Rept:On 930926,TS Violation Occurred Due to SSW Pump House Strong Motion Accelerometer Recorder Calibration Failure.Ordered New Replacement Parts

ML20059G758
Person / Time
Site:	Grand Gulf
Issue date:	11/02/1993
From:	Hutchinson C ENTERGY OPERATIONS, INC.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GNRO-93-00132, GNRO-93-132, NUDOCS 9311090069
Download: ML20059G758 (2)

Text

-___-_.--_- - -

Entergy Operations,Inc.

_ ENTERGY eo se 75e Fbri Gbson, MS 39150 Te! S01437 2B00 C. R. Hutchinson November 2, 1993 vm nec Opem m -

Gearc Cost' Ntdiat State n U.S. Nuclear Regulatory Commission Mail Station P1-137 Washington, D.C. 20555 Attention: Document Control Desk

SUBJECT:

Grand Gulf Nuclear Station unit 1 Docket No. 50-416 License No. NPF-29 Special Report 93-004 Inoperable Seismic Monitor GNRO-93/00132 Gentlemen:

The Division I Standby Service Water Pump House Strong Motion Accelerometer Recorder SC85R605 failed its calibration on 9/26/93 at 0200 hours0.00231 days <br />0.0556 hours <br />3.306878e-4 weeks <br />7.61e-5 months <br />.

Due to unavailability of suitable replacement parts, inoperability time exceeded the 30 days required by Technical Specification 3.3.7.2. New replacement parts have been ordered.

Ordered supplies should be received by 10/27/93 and the recorder should be declared operable within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following installation.

In accordance with the requirement of Technical Specification 3.3.7.2, Entergy Operations is providing this Special Report.

Yours truly, C. R. Hutchinson CRH/TMC cc: (See Next Page) 9311090069 931102 o

/f , /

= ^** N'{i f ,

t

1 a  !

1 i

i November 2, 1993 ,

GNRO-93/00132 '

Page 2 of 3 cc: Mr. R. H. Bernhard i Mr. D. C. Hintz Mr. H. W. Keiser Mr. R. B. McGehee Mr. N. S. Reynolds Mr. H. L. Thomas Mr. Stewart D. Ebneter ,

Regional Administrator l U.S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W., Suite 2900 i Atlanta, Georgia 30323 Mr. P. W. O'Connor, Project Manager Office of Nuclear Reactor Regulation U.S. Nr _ ear Regulatory Commission Mai' cop 13H3 Washington, D.C. 20555

,