ML20204J116

Forwards SER Re Licensee Responses to Humphrey Concerns on Mark III Containment Design.Humphrey Concerns Satisfactorily Resolved.Licensee Will Continue to Prohibit Use of RHR Steam Condensing Mode Until Design Mods Implemented

ML20204J116
Person / Time
Site:	Grand Gulf
Issue date:	03/23/1987
From:	Kintner L Office of Nuclear Reactor Regulation
To:	Kingsley O SYSTEM ENERGY RESOURCES, INC.
Shared Package
ML20204J121	List: ML20204J116 ML20204J145
References
TAC-55759, TAC-57139, TAC-57140, NUDOCS 8703270177
Download: ML20204J116 (3)

Text

_

March 23, 1987

- Docket No.: 50-416 DISTRIBUTION

+6% BGrimes Mr.' Oliver D. Kingsley, Jr. NRC PDR JPartlow Vice President, Nuclear Operations LPDR NThompson System Energy Resources, Inc. PD#4 Reading LKintner/BSiegel

. Post Office Box 23054 RBernero- JUnda

- Jackson, Mississippi 39205 Young,'0GC M0'Brien

. EJordan ACRS(10)

SUBJECT:

SER RELATING TO HUMPHREY CONCERNS RE: GRAND GULF NUCLEAR STATION, UNIT 1 By letter dated May 8,1982, Mr. John Humphrey, a former General Electric Company engineer, notified the licensee (Mississippi Power & Li prior to December 20, 1986, now Systems Energy Resources, Inc.)ght Company of certain safety concerns regarding the Grand Gulf Nuclear Station Mark III containment design (Humphrey Concerns). The licensee provided responses to the Humphrey Concerns which were evaluated by the staff in the Grand Gulf Nuclear Station Safety Evaluation Report (NUREG 0831) Supplement Nos. 2, 3 and 4. In SSER 4 staff concluded based on its review to date that adequate safety margin in the GGNS Mark III containment existed to pennit full power operation, pending completion of the staff's confirmatory review of the issue. The licensee has provided additional submittals regarding the Humphrey Concerns in response to requests by the staff for additional information.

The NRC staff has reviewed the information submitted by the licensee as well as generic submittals re The staff's safety evaluation report (SER)isgarding Mark enclosed. TheIIIstaff containments.

concludes that all the Humphrey Concerns regarding the Mark III containment design have been satisfactorily resolved for GGNS-1. As a part of this resolution, the licensee will continue to prohibit the use of the RHR steam condensing mode until design modifications are made to eliminate the routing of non-condensible gases from the condensing steam to the RHR discharge line. (See Pages 8-11 of the enclosed SER).

• driginal syn,,g Lester L. Kintner, Project Manager BWR Project Directorate No. 4 4

Division of BWR Licensing i'

Enclosure:

As stated cc w/ enclosure:

See next page PD#4 PDf4/D -

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' UNITED STATES E n NUCLEAR REGULATORY COMMISSION

,h  ; WASHINGTON, D. C. 20565

%,,,,,! March 23, 1987 Docket No.: 50-416 Mr. Oliver D. Kingsley, Jr.

Vice President, Nuclear Operations System Energy Resources. Inc.

Post Office Box 23054 Jackson, Mississippi 39205

SUBJECT:

SER RELATING TO HUMPHREY CONCERNS RE: GRAND GULF NUCLEAR STATION, UNIT 1 By letter dated May 8,1982, Mr. John Humphrey, a former General Electric

' Company engineer, prior to December notified the licensee (Mississippi Powerof&certain 20, 1986, Linow Systems Energy safety concerns regarding the Grand Gulf Nuclear Station Mark III containment design (HumphreyConcerns). The licensee provided responses to the Humphrey .

Concerns which were evaluated by the staff in the Grand Gulf Nuclear Station SafetyEvaluatiorReport(NUREG0831)SupplementNos.2,3and4 In'SSER 4 i staff concluded based on its review to date that adequate safety margin in the '

GGNS Mark III containment existed to permit full power operation, pending completion of the staff's confirmatory review of the issue. The licensee has provided additional submittals regarding the Humphrey Concerns in response to requests by the staff for additional information.

The NRC staff has reviewed the information submitted by the licensee as well as generic submittals regarding Mark III containments. The staff's safety evaluation report (SER) is enclosed. The staff concludes that all the Humphrey Concerns regarding the Mark III containment design have been satisfactorily resolved for GGNS-1. As a part of this resolution, the licensee will continue to prohibit the use of the RHR steam condensing mode until design modifications are made to eliminate the routing of non-condensible gases from the condensing steam to the RHR discharge line. (See Pages 8-11 of the enclosed SER),

Sincerely, Lester L. intner, Project Manager BWR Project Directorate No. 4 Division of BWR Licensing

Enclosure:

As stated cc w/ enclosure:

See next page

~ . .

l Mr. O!!ver D. Kingsley, Jr.

System Energy Resources. Inc. Grand Gulf Nuclear Station (GGNS) cc:

Mr. Ted H. Cloninoer Mr. C. R. Hutchinson Vice President, Nuclear Enaineering GGNS General Manager and Support i System Energy Resources, Inc.

System Energy Resources, Inc. , Post Office Box 756 Post Office Box 23054 i Port'Gibson, Mississippi 39150 Jackson, Mississippi 39205 j Robert B. McGehee, Esquire  :

The Honorable William J. Guste, Jr.

Wise, Carter, Child, Steen and Caraway Attorney General P.O. Box 651  : Department of Justice Jackson, Mississippi 39205 l State of Louisiana Baton Rouce Louisiana 70804 Nicholas S. Reynolds, Esquire Bishop.Liberman, Cook,Purcell;i Office of the Governor and Reynolds l State of Mississippi 1200 17th Street, N.W. Jackson, Mississippi 39201 Washington, D. C. 20036 j Attorney General Mr. Ralph T. Lally ,

Gartin Building Manager of Quality Assurance i Jackson, Mississippi 39205 Middle South Utilities System i Services Inc.

P.O. Box 61000 .

Mr. Jack McMillan, Director New Orleans, Louisiana 70161  ; Division of Solid Waste Management j Mississippi Department of Natural Mr. John G. Cesare i Resources Director, Nuclear Licensing and' Safety Bureau of Pollution Control System Energy Resources Inc. , Post Office Box 10385 P.O. Box 23054 Jackson, Mississippi 39209 Jackson, Mississippi 39205 Alton B. Cobb, M.D.

Mr. R. W. Jackson, Project Engineer State Health Officer Bechtel Power Corporation State Board of Health 15740 Shady Grove Road P.O. Box 1700 Gaithersburg, Maryland 20877-1A54 Jackson, Mississippi 39205 Mr. Ross C. Butcher President Senior Resident Inspector Claiborne County Board of Supervisors U.S. Nuclear Regulatory Commission Port Gibson, Mississippi 39150 Route 2. Box 399 Port Gibson, Mississippi 39150 Regional Administrator, Region II U.S. Nuclear Regulatory Connission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr. James E. Cross GGNS Site Director System Energy Resources, Inc.

P.O. Box 756 Port Gibson, Mississippi 39150