ML19344E815

Responds to IE Bulletin 80-16.Ten Rosemount,Inc Model 1151A Transmitters Scheduled to Be Used in safety-related Applications Were Purchased.Transmitters Will Be Replaced Before Fuel Loading

ML19344E815
Person / Time
Site:	Grand Gulf
Issue date:	08/27/1980
From:	Dale L MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
AECM-80-196, IEB-80-16, NUDOCS 8009110681
Download: ML19344E815 (2)

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MISSISSIPPI POWERra LtGHT: COMPANY Helping 8'&ilo'ATiksiWilppl%

medmMidds P. O. B O X 16 4 0. J A C K S O N MI S SIS SI P PI 3 9 2 0 5 NUCLEAR PRODUCTION DEPARTMENT August 2g,Q80g e All

• 33 Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 ATTENTION: Mr. J. P. O'Reilly, Director' Gentlemen:

SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 w Docket Nos , 0-416 and 50 g File 0260/L- 1.v Evaluation of IE Bulletin 80-16 AECM-80/196 Mississippi Power & Light Company h.:s completed its review of the Balance Of Plant affected portions of IE Bulletin 80-16. It was determined that ten (10) Rosemount Model 1151A transmitters scheduled to be used in a safety-related application were purchased by Bechtel for each unit at the Grand Gulf Nuclear Station. These transmitters are identified with tag numbers IE30-LT-N004A/B, IE61-PDT-N013A-H, 2E30-LT-N004A/B, and 2E61-PDT-N013A-H. The E30 instruments measure narrow range suppression pool water level and the E61 instruments met.sure drywell/ containment differential pressure. This item was reported to the NRC by Bechtel under the reporting requirements of 10 CFR 21 on April 24, 1980.

The E30 and E61 transmitters listed above will be replaced with new transmitters before fuel loading which do , t have this same ambiguous characteristic in the over-range and under-r Q e condition, and which are qualified in accordance with IEEE 323-1974 and IEEE 344-1975.

It is requested that Mississippi Power & Light Company be granted a sixty day extension for completion of the NSSS affected portions of IE Bulletin 80-16. At that time we will complete our response concerning IE Bulletin 80-16. Should you have any further questions regarding this matter, please advise.

Yours truly,

, j & '

/ L. F. Dale

(- Nuclear Project Manager MRW/JER:gjd cc: (See Next Page) 6oo9 9" ( #/ Member Middle South Utilities System OFFICIAL COPY

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