ML20213G222

Degraded Core Accident Hydrogen Control Program, Quarterly Status Rept for Quarter Ending 860930

ML20213G222
Person / Time
Site:	Grand Gulf
Issue date:	11/10/1986
From:	MISSISSIPPI POWER & LIGHT CO.
To:
Shared Package
ML20213G212	List: AECM-86-0350, Forwards Degraded Core Accident Hydrogen Control Program, Quarterly Status Rept for Quarter Ending 860930 ML20213G222
References
NUDOCS 8611170391
Download: ML20213G222 (3)

Text

..

. Attachment to AECM-86/0350

\

I_

Quarterly Status Report for Quarter Ending September 30, 1986 I -

" Degraded Core Accident I l

Hydrogen Control Program" Grand Gulf Nuclear Station Units 1 and 2 Docket Nos. 50-416 and 50-417 Mississippi Power & Light Company i

DO PDR R

l

)

J19AECM86110601 - 4

. Attachment to AECM-86/0350 Quarterly Status Report - September 30, 1986

" Degraded Core Accident Hydrogen Control Program" 1.0 Introduction This quarterly status report is submitted to comply with a requirement in the Grand Gulf Nuclear Station, Unit 1 Facility Operating License (License No. NPF-29). This requirement specifies that Mississippi Power

& Light (MP&L) should provide quarterly reports outlining the status of the on-going research program to address degraded core hydrogen control requirements. This report covers the third calendar quarter of 1986 ending September 30, 1986.

This report includes brief summaries of the submittals made by MP&L during this quarter along with summaries of meetings between the NRC staff and MP&L. MP&L is participating in the Hydrogen Control Owners

Group (HC0G) which is conducting generic research and completing generic analyses to resolve the degraded core hydrogen control issue. Since the work completed by HC0G complements MP&L's program to resolve this issue, this report also includes summaries of meetings between the HC0G and the NRC. The summaries of these meetings included in this report do not reflect a formal HC0G position with respect to any issue and represent only the MP&L interpretation of the meetings.

2.0 Summary of MP&L Submittals MP&L made no submittals to the NRC on the Degraded Core Accident Hydrogen Control Program during the second calendar quarter of 1986.

3.0 Summary of HC0G and NRC Meetings Neither MP&L nor HC0G met with the NRC this quarter on the Degraded Core Accident Hydrogen Control Program.

4.0 Test Program Status The summaries and status of the HC0G test program as stated here do not, i reflect the HC0G position with respect to any test' program and represent only an MP&L interpretation of these programs.

4.1 1/4 Scale Test Program Status As discussed in the last quarterly status report, HC0G was in the process of completing a final data evaluation of the Perry production' tests prior to changing the 1/4 scale test facility over to Grand Gulf.

This final data evaluation was subsequently completed and the 1/4 scale test facility was modified for Grand Gulf testing by July 22, 1986. The first successful Grand Gulf production test was completed on July 28, 1986. By the end of the quarter all Grand Gulf production tests had been completed.

i 4

J19AECM86110601 - 5

. Attachment to AECM-86/0350 On September 30, 1986, MP&L completed an extensive data evaluation of each Grand Gulf production test for acceptability and completeness.

Immediately following this evaluation HC0G was given approval to change

, the 1/4 scale test facility to the River Bend configuration for Gulf States Utilities testing.

4.1.1- -Planned Activities for the 4th Quarter of 1986.

Complete the 1/4 scale test facility change over from the Grand Gulf configuration to the River Bend configuration. Following completion of the change over start and complete River Bend production testing.

Start Grand Gulf equipment survivability analysis.

I

't.,

r e

i -

1 I

t i J19AECM86110601 - 6

. _ _ _ _ ___ _ . . _ .. .,. _ __ _ , . . _ . _ . . _ _ _ - _ . - ,