AECM-83-0664, Final Deficiency Rept for Unit 1 & Interim Deficiency Rept for Unit 2 Re Potential Rupture of High Pressure Fuel Injection Lines on Div I & II Diesel Generators During Engine Operation.Also Reportable Under Part 21 for Unit 1

Final Deficiency Rept for Unit 1 & Interim Deficiency Rept for Unit 2 Re Potential Rupture of High Pressure Fuel Injection Lines on Div I & II Diesel Generators During Engine Operation.Also Reportable Under Part 21 for Unit 1

ML20078H214
Person / Time
Site:	Grand Gulf
Issue date:	10/05/1983
From:	Mcgaughy J MISSISSIPPI POWER & LIGHT CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
REF-PT21-83 10CFR-050.55E, 10CFR-50.55E, AECM-83-0664, AECM-83-664, NUDOCS 8310140075
Download: ML20078H214 (5)

Text

,

MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississippi P. O. B O X 16 4 0, J A C K S O N , M I S 8$g I 3 9 2 0 5 I: 5y JAMES P. McGAUGHY, JR.

1 i

U. S. Nuclear Regulatory Commission Region 11 101 Marietta Street, N.W.

Suite 2900 Atlanta, Georgia 30303 Attention: Mr. J. P. O'Reilly, Regional Administrator

SUBJECT:

Grand Gulf Nuclear Station Units 1 and 2 License No. NPF-13 Docket Nos. 50-416/417 File 0260/15525/15526/16694.4 PRD-83/14, Final Report for Unit 1; Interim Report for Unit 2, Delaval High Pressure Fuel Injection Line AECM-83/0664 On October 5,1983, Mississippi Power & Light Company notified Ms. L. Watson, of your office, of a Reportable Deficiency at the Grand C-ulf Nuclear Station (GGNS). The deficiency concerns a potential rupture of the high pressure fuel injection lines on the Division I and II diesel generators during engine operation.

MP&L has determined that this deficiency is reportable under the provisions of 10CFR21 for Unit 1 and potentially reportable under the provisions of 10CFR50.55(e) for Unit 2.

Yours truly,.,

w J. P. McGaughy, Jr.

fv ACP:dr ATTACHMENT cc: See page 2 0310140075 831005 PDR ADOCK 05000 ,

g, s ,s Member Middle South Utilities System a/

[ f

m .

~.Mr. J. P. O'Reilly AECM-83/0664

'NRC- Page 2 cc: Mr. J. B. Richard Mr. R. B. McGehee Mr. T. B. Conner Mr. Richard C. DeYoung, Director Of fice of-Inspection & Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Mr. G. B. Taylor' South Miss. Electric Power Association P. O. Box-1589 Hattiesburg, MS 39401 i

l l

l I

i-

. _. _ . ~,- . . -~ - . . _ _.

3.1 '-

Attachment to AECM-83/0664 Pagi 1 of 3 FINAL REPORT FOR UNIT 1; INTERIM REPORT FOR UNIT 2

~

1. Name and address of the individual ... informing the commission:

J. P. McGaughy, Jr.

i Vice-President, Nuclear P.O. Box 1640 Jackson, Mississippi 39205 This deficiency was also reported under 10CFR21 by Transamerica Delaval to the NRClin their letter dated July 20, 1983.

2. Identification of the facility . .. which .. . contains a deficiency:

Grand Gulf Nuclear Station (GGNS) Unit 1 Port Gibson, Mississippi 39150

.3. Identification of the fira ... supplying the basic component which ...

contains a deficiency:

4 The high pressure fuel line assemblies were manufactured by Transamerica Delaval, Inc. and supplied to Grand Gulf by Bechtel Power Corporation, Gaithersburg, Maryland.

4. Nature of the deficiency ... and the safety hazard which ... could be created by such a deficiency . ..:

A. Description of the Deficiency The potential deficiency identified by Transamerica Delaval, Inc.

(TDI) involves a possible draw sean on the ID of high pressure fuel i

injection -lines supplied on the Division I and II diesel generators. ' Two tubing failures at Shoreham were attributed to the draw seas which acted as a stress riser and failed when subjected to repeated operating cycles (:::1,000,000).

4 On August 2,1983, a high pressure fuel injection line on the GGNS, 1

Unit 1, Division I diesel generator failed. An analysis of the failed tubing attributed the failure to the tubing manufacturing flaw.

B.- Analysis of Safety Implications The rupture of the high pressure fuel oil line(s) could result in diesel generator non-availability or reduced capability to carry

- designed loads.

4 4

, , - , - . . ---,s. .-em--..m-4,-w, e,o---. - - . ..gm, -- m ,.,.#.,---.+.,e 8.w--~ -.e,-.-+- ~.,---.---,.-t- + - - - -wem w.-e- w:---,-. .-- --

4- . .

- Attachsent- to AECM-83/0664 Pag 2 2 cf 3

5. The date on which'the information of such deficiency ... was obtained.

~

Mississippi Power and Light received information of the deficiency on July 27, 1983. We reported the deficiency to Ms. L. Watson, of your_ office, as

- a Reportable Deficiency for Unit 1 on October 5,1983. An evaluation for -

Part' 21 has been completed for Unit 1 and the MP&L " Responsible Of ficer,"

Mr. J. P. McGaughy, Jr. , will be notified when he returns to his of fice.

6. In the case of the basic component ... the nusber and location of all such-components.

There are two (2) diesel generators on each Unit et Grand Gulf for a total

of-four (4). Other locations of defective components- were listed by

' Transamerica Delaval in their notification letter to the NRC of July 20, 1983. We do not have knowledge of the location of other defective equipment.

7. The corrective action which has been taken . .. the name of the individual

.. . responsible for the action; and the length of time that has been ...

taken to complete the action.

A. Corrective Actions Taken The Transamerica Delaval letter of July 20, 1983, indicates that the failures occur at approximately 1,000,000 operating cyc1es and that fuel lines that have in excess of 10,000,000 operating cycles without

• failure are satisfactory. All the original lines on the Division I and II diesels have . greater then 10,000,000 operating cycles and are

' considered free of internal flaws of this type. One line on the

! Division I diesel and one line of the Division II diesel were not original lines and had less than 10,000,000 operating cycles.

Replacement lines were ordered and installed in place of' the two '

l ' suspect lines.

l _

.For Unit 2, our Architect / Engineer has issued QAR F-408 to track the

! concern.

B. Responsible Individual C. K. McCoy T. H. Cloninger Plant Manrger Unit 2 Project Manager Mississley; . Powe r & Ligh t Co . Mississippi Power & Light Co.

Responsible for Unit 1 Responsible for Unit 2 l C. Length of Time to Complete Actions l

Corrective actions for Unit 1 are complete. A projected completion date for Unit 2 is not available at this time due to the limited ongoing construction effort; however, we expect to submit our next

' Interim Report by June 1,1984.

l i

i

' r

~

l l -. . . _ . . , _ _ _ . - . - - . . - . - _ - - _ - . - _ . . _ - _ - ~ . . _ , - - - - . . , - _ , , - _ _ _ _ ~ , _ . , , , , . - . - . - - - ~ . . - -

~

s. e Attachment to AECM-83/0664 Pega 3 of 3

8. Any advice related to the deficiency ... that has been, is being, or will be given to purchasers or licensees:

As the deficiency did not originate with MP&L, we have no advice to offer.

l r

F I

I L

l l

i i

l - - - .. . . - . , - . . _ _ __ ._ , . , , _ _ , _ , _ _ _ _ _ _ , _ .